./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/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_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-b5237d8 [2022-11-22 01:34:26,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:34:26,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:34:26,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:34:26,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:34:26,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:34:26,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:34:26,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:34:26,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:34:26,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:34:26,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:34:26,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:34:26,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:34:26,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:34:26,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:34:26,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:34:26,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:34:26,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:34:26,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:34:26,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:34:26,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:34:26,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:34:26,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:34:26,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:34:26,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:34:26,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:34:26,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:34:26,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:34:26,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:34:26,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:34:26,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:34:26,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:34:26,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:34:26,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:34:26,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:34:26,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:34:26,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:34:26,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:34:26,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:34:26,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:34:26,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:34:26,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:34:26,702 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:34:26,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:34:26,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:34:26,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:34:26,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:34:26,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:34:26,704 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:34:26,705 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:34:26,705 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:34:26,705 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:34:26,705 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:34:26,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:34:26,705 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:34:26,706 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:34:26,706 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:34:26,706 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:34:26,706 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:34:26,706 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:34:26,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:34:26,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:34:26,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:34:26,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:34:26,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:34:26,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:34:26,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:34:26,708 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:34:26,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:34:26,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:34:26,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:34:26,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:34:26,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:34:26,709 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:34:26,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:34:26,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:34:26,710 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:34:26,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:34:26,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:34:26,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:34:26,711 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_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3d1583250bab7d5c6e3cae163663e7ac3704cf0fb6c32d7f6b8a0a0c30f1a49 [2022-11-22 01:34:26,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:34:27,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:34:27,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:34:27,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:34:27,018 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:34:27,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-22 01:34:30,051 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:34:31,045 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:34:31,046 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-22 01:34:31,122 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/data/231459d4b/29d0edafec0f45479f901e0219557072/FLAG9b7dd4e33 [2022-11-22 01:34:31,141 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/data/231459d4b/29d0edafec0f45479f901e0219557072 [2022-11-22 01:34:31,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:34:31,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:34:31,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:34:31,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:34:31,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:34:31,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:34:31" (1/1) ... [2022-11-22 01:34:31,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52419977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:31, skipping insertion in model container [2022-11-22 01:34:31,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:34:31" (1/1) ... [2022-11-22 01:34:31,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:34:31,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:34:38,051 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752340,752353] [2022-11-22 01:34:38,058 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752506,752519] [2022-11-22 01:34:38,058 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752670,752683] [2022-11-22 01:34:38,059 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752835,752848] [2022-11-22 01:34:38,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:34:38,174 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:34:39,093 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752340,752353] [2022-11-22 01:34:39,094 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752506,752519] [2022-11-22 01:34:39,094 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752670,752683] [2022-11-22 01:34:39,094 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752835,752848] [2022-11-22 01:34:39,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:34:39,457 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:34:39,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39 WrapperNode [2022-11-22 01:34:39,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:34:39,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:34:39,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:34:39,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:34:39,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:39,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,092 INFO L138 Inliner]: procedures = 660, calls = 11669, calls flagged for inlining = 344, calls inlined = 236, statements flattened = 12513 [2022-11-22 01:34:40,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:34:40,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:34:40,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:34:40,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:34:40,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,769 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:34:40,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:34:40,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:34:40,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:34:40,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (1/1) ... [2022-11-22 01:34:40,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:34:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:40,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:34:40,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:34:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:34:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:34:40,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:34:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:34:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2022-11-22 01:34:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2022-11-22 01:34:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2022-11-22 01:34:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2022-11-22 01:34:40,928 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2022-11-22 01:34:40,928 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2022-11-22 01:34:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:34:40,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:34:40,929 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:34:40,929 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:34:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-22 01:34:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-22 01:34:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2022-11-22 01:34:40,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2022-11-22 01:34:40,930 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2022-11-22 01:34:40,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2022-11-22 01:34:40,931 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:34:40,931 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:34:40,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 01:34:40,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 01:34:40,933 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2022-11-22 01:34:40,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2022-11-22 01:34:40,933 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2022-11-22 01:34:40,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2022-11-22 01:34:40,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:34:40,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:34:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:34:40,934 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:34:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:34:40,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:34:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:34:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:34:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:34:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:34:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:34:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:34:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2022-11-22 01:34:40,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2022-11-22 01:34:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:34:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:34:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:34:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:34:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:34:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:34:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-11-22 01:34:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-11-22 01:34:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2022-11-22 01:34:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2022-11-22 01:34:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2022-11-22 01:34:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2022-11-22 01:34:40,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:34:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:34:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:34:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2022-11-22 01:34:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2022-11-22 01:34:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-22 01:34:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-22 01:34:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2022-11-22 01:34:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2022-11-22 01:34:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:34:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:34:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2022-11-22 01:34:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2022-11-22 01:34:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2022-11-22 01:34:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2022-11-22 01:34:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:34:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:34:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2022-11-22 01:34:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2022-11-22 01:34:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:34:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:34:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-22 01:34:40,945 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-22 01:34:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:34:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:34:40,945 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:34:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 01:34:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 01:34:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:34:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2022-11-22 01:34:40,946 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2022-11-22 01:34:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:34:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:34:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2022-11-22 01:34:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2022-11-22 01:34:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:34:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:34:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:34:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2022-11-22 01:34:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2022-11-22 01:34:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2022-11-22 01:34:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2022-11-22 01:34:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:34:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:34:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:34:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:34:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:34:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:34:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:34:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:34:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-22 01:34:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-22 01:34:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:34:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:34:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2022-11-22 01:34:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2022-11-22 01:34:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:34:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:34:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2022-11-22 01:34:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2022-11-22 01:34:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2022-11-22 01:34:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2022-11-22 01:34:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2022-11-22 01:34:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2022-11-22 01:34:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2022-11-22 01:34:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2022-11-22 01:34:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:34:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:34:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2022-11-22 01:34:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2022-11-22 01:34:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:34:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:34:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-22 01:34:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-22 01:34:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:34:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:34:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:34:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-22 01:34:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-22 01:34:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:34:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2022-11-22 01:34:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2022-11-22 01:34:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:34:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:34:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2022-11-22 01:34:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2022-11-22 01:34:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:34:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:34:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2022-11-22 01:34:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2022-11-22 01:34:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:34:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:34:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:34:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:34:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2022-11-22 01:34:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2022-11-22 01:34:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2022-11-22 01:34:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2022-11-22 01:34:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 01:34:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 01:34:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2022-11-22 01:34:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2022-11-22 01:34:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-22 01:34:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-22 01:34:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:34:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:34:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-22 01:34:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-22 01:34:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2022-11-22 01:34:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2022-11-22 01:34:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2022-11-22 01:34:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2022-11-22 01:34:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-22 01:34:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-22 01:34:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:34:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:34:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:34:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:34:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2022-11-22 01:34:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2022-11-22 01:34:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:34:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:34:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2022-11-22 01:34:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2022-11-22 01:34:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2022-11-22 01:34:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2022-11-22 01:34:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2022-11-22 01:34:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2022-11-22 01:34:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2022-11-22 01:34:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2022-11-22 01:34:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:34:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:34:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2022-11-22 01:34:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2022-11-22 01:34:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:34:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:34:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2022-11-22 01:34:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2022-11-22 01:34:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2022-11-22 01:34:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2022-11-22 01:34:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2022-11-22 01:34:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2022-11-22 01:34:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:34:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:34:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2022-11-22 01:34:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2022-11-22 01:34:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2022-11-22 01:34:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2022-11-22 01:34:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:34:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:34:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:34:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:34:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:34:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:34:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2022-11-22 01:34:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2022-11-22 01:34:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:34:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:34:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-22 01:34:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-22 01:34:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:34:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:34:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:34:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:34:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:34:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2022-11-22 01:34:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2022-11-22 01:34:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:34:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:34:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2022-11-22 01:34:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2022-11-22 01:34:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:34:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2022-11-22 01:34:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2022-11-22 01:34:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2022-11-22 01:34:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2022-11-22 01:34:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2022-11-22 01:34:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2022-11-22 01:34:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2022-11-22 01:34:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2022-11-22 01:34:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2022-11-22 01:34:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2022-11-22 01:34:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-22 01:34:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-22 01:34:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:34:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2022-11-22 01:34:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2022-11-22 01:34:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-22 01:34:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-22 01:34:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:34:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:34:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2022-11-22 01:34:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2022-11-22 01:34:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2022-11-22 01:34:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2022-11-22 01:34:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:34:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:34:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2022-11-22 01:34:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2022-11-22 01:34:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:34:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:34:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:34:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:34:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:34:40,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:34:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2022-11-22 01:34:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2022-11-22 01:34:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2022-11-22 01:34:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2022-11-22 01:34:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2022-11-22 01:34:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2022-11-22 01:34:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-22 01:34:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-22 01:34:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2022-11-22 01:34:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2022-11-22 01:34:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-22 01:34:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-22 01:34:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-22 01:34:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-22 01:34:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:34:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:34:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:34:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:34:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-22 01:34:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-22 01:34:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2022-11-22 01:34:40,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2022-11-22 01:34:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2022-11-22 01:34:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2022-11-22 01:34:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-22 01:34:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-22 01:34:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:34:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:34:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:34:40,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:34:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:34:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2022-11-22 01:34:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2022-11-22 01:34:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:34:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:34:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2022-11-22 01:34:40,996 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2022-11-22 01:34:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2022-11-22 01:34:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2022-11-22 01:34:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 01:34:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 01:34:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2022-11-22 01:34:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2022-11-22 01:34:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:34:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:34:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2022-11-22 01:34:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2022-11-22 01:34:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:34:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:34:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:34:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:34:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2022-11-22 01:34:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2022-11-22 01:34:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2022-11-22 01:34:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2022-11-22 01:34:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:34:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2022-11-22 01:34:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:34:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:34:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:34:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:34:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 01:34:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 01:34:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:34:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:34:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:34:41,001 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:34:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2022-11-22 01:34:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2022-11-22 01:34:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 01:34:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 01:34:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2022-11-22 01:34:41,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2022-11-22 01:34:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:34:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2022-11-22 01:34:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2022-11-22 01:34:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2022-11-22 01:34:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2022-11-22 01:34:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:34:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2022-11-22 01:34:41,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2022-11-22 01:34:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2022-11-22 01:34:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2022-11-22 01:34:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:34:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:34:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 01:34:41,004 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 01:34:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2022-11-22 01:34:41,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2022-11-22 01:34:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2022-11-22 01:34:41,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2022-11-22 01:34:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-22 01:34:41,005 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-22 01:34:42,374 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:34:42,379 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:34:54,908 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:36:59,800 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:37:02,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:37:02,890 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:37:02,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:02 BoogieIcfgContainer [2022-11-22 01:37:02,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:37:02,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:37:02,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:37:02,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:37:02,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:34:31" (1/3) ... [2022-11-22 01:37:02,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8dfd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:02, skipping insertion in model container [2022-11-22 01:37:02,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:39" (2/3) ... [2022-11-22 01:37:02,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8dfd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:02, skipping insertion in model container [2022-11-22 01:37:02,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:02" (3/3) ... [2022-11-22 01:37:02,905 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-22 01:37:02,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:37:02,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:37:03,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:37:03,039 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;@57f8d7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:37:03,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:37:03,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 2677 states, 1666 states have (on average 1.3205282112845138) internal successors, (2200), 1692 states have internal predecessors, (2200), 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) [2022-11-22 01:37:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 01:37:03,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:03,062 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] [2022-11-22 01:37:03,062 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)] === [2022-11-22 01:37:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:03,068 INFO L85 PathProgramCache]: Analyzing trace with hash -373394728, now seen corresponding path program 1 times [2022-11-22 01:37:03,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:03,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919250892] [2022-11-22 01:37:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:03,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 01:37:07,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:07,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919250892] [2022-11-22 01:37:07,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919250892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:07,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:07,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:37:07,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223313575] [2022-11-22 01:37:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:07,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:37:07,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:07,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:37:07,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:37:07,219 INFO L87 Difference]: Start difference. First operand has 2677 states, 1666 states have (on average 1.3205282112845138) internal successors, (2200), 1692 states have internal predecessors, (2200), 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) [2022-11-22 01:37:12,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:37:13,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:37:15,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:37:18,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:22,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:37:24,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:37:27,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:31,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:39,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:44,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:47,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:50,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:50,215 INFO L93 Difference]: Finished difference Result 7453 states and 10893 transitions. [2022-11-22 01:37:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:37:50,218 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 [2022-11-22 01:37:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:50,269 INFO L225 Difference]: With dead ends: 7453 [2022-11-22 01:37:50,269 INFO L226 Difference]: Without dead ends: 4779 [2022-11-22 01:37:50,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:50,296 INFO L413 NwaCegarLoop]: 4936 mSDtfsCounter, 3184 mSDsluCounter, 13294 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 18230 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:50,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 18230 Invalid, 1320 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1310 Invalid, 6 Unknown, 0 Unchecked, 42.3s Time] [2022-11-22 01:37:50,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2022-11-22 01:37:50,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4771. [2022-11-22 01:37:50,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4771 states, 2969 states have (on average 1.3159312899966318) internal successors, (3907), 3018 states have internal predecessors, (3907), 1491 states have call successors, (1491), 312 states have call predecessors, (1491), 308 states have return successors, (1486), 1476 states have call predecessors, (1486), 1485 states have call successors, (1486) [2022-11-22 01:37:50,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 6884 transitions. [2022-11-22 01:37:50,748 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 6884 transitions. Word has length 35 [2022-11-22 01:37:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:50,751 INFO L495 AbstractCegarLoop]: Abstraction has 4771 states and 6884 transitions. [2022-11-22 01:37:50,751 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) [2022-11-22 01:37:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 6884 transitions. [2022-11-22 01:37:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 01:37:50,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:50,755 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] [2022-11-22 01:37:50,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:37:50,755 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)] === [2022-11-22 01:37:50,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:50,756 INFO L85 PathProgramCache]: Analyzing trace with hash 12964935, now seen corresponding path program 1 times [2022-11-22 01:37:50,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:50,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967772962] [2022-11-22 01:37:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:50,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:53,642 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 01:37:53,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:53,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967772962] [2022-11-22 01:37:53,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967772962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:53,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:53,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:37:53,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96559629] [2022-11-22 01:37:53,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:53,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:37:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:37:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:37:53,645 INFO L87 Difference]: Start difference. First operand 4771 states and 6884 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) [2022-11-22 01:37:57,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:38:01,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:38:03,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:38:05,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:38:07,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:13,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:15,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:22,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:26,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:29,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:32,463 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 [] [2022-11-22 01:38:34,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:34,047 INFO L93 Difference]: Finished difference Result 9326 states and 13527 transitions. [2022-11-22 01:38:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:38:34,051 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 [2022-11-22 01:38:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:34,116 INFO L225 Difference]: With dead ends: 9326 [2022-11-22 01:38:34,116 INFO L226 Difference]: Without dead ends: 9324 [2022-11-22 01:38:34,123 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 [2022-11-22 01:38:34,124 INFO L413 NwaCegarLoop]: 4640 mSDtfsCounter, 3686 mSDsluCounter, 12810 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3691 SdHoareTripleChecker+Valid, 17450 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:34,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3691 Valid, 17450 Invalid, 1235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1227 Invalid, 5 Unknown, 0 Unchecked, 39.8s Time] [2022-11-22 01:38:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2022-11-22 01:38:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 9313. [2022-11-22 01:38:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9313 states, 5803 states have (on average 1.316905049112528) internal successors, (7642), 5902 states have internal predecessors, (7642), 2903 states have call successors, (2903), 614 states have call predecessors, (2903), 604 states have return successors, (2971), 2867 states have call predecessors, (2971), 2891 states have call successors, (2971) [2022-11-22 01:38:34,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9313 states to 9313 states and 13516 transitions. [2022-11-22 01:38:34,608 INFO L78 Accepts]: Start accepts. Automaton has 9313 states and 13516 transitions. Word has length 40 [2022-11-22 01:38:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:34,609 INFO L495 AbstractCegarLoop]: Abstraction has 9313 states and 13516 transitions. [2022-11-22 01:38:34,609 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) [2022-11-22 01:38:34,609 INFO L276 IsEmpty]: Start isEmpty. Operand 9313 states and 13516 transitions. [2022-11-22 01:38:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-22 01:38:34,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:34,619 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] [2022-11-22 01:38:34,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:38:34,620 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)] === [2022-11-22 01:38:34,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:34,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2042238968, now seen corresponding path program 1 times [2022-11-22 01:38:34,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:34,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492662423] [2022-11-22 01:38:34,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:34,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 01:38:37,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:37,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492662423] [2022-11-22 01:38:37,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492662423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:37,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:37,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:38:37,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952054149] [2022-11-22 01:38:37,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:37,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:38:37,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:37,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:38:37,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:38:37,241 INFO L87 Difference]: Start difference. First operand 9313 states and 13516 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) [2022-11-22 01:38:41,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:38:43,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:38:46,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:52,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:38:59,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:02,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:05,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:09,548 INFO L93 Difference]: Finished difference Result 15750 states and 22802 transitions. [2022-11-22 01:39:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:39:09,549 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 [2022-11-22 01:39:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:09,633 INFO L225 Difference]: With dead ends: 15750 [2022-11-22 01:39:09,634 INFO L226 Difference]: Without dead ends: 15748 [2022-11-22 01:39:09,643 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 [2022-11-22 01:39:09,644 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 3181 mSDsluCounter, 12057 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 16323 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:09,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 16323 Invalid, 1202 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 1193 Invalid, 7 Unknown, 0 Unchecked, 31.6s Time] [2022-11-22 01:39:09,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15748 states. [2022-11-22 01:39:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15748 to 15711. [2022-11-22 01:39:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15711 states, 9783 states have (on average 1.3165695594398446) internal successors, (12880), 9943 states have internal predecessors, (12880), 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) [2022-11-22 01:39:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15711 states to 15711 states and 22762 transitions. [2022-11-22 01:39:10,548 INFO L78 Accepts]: Start accepts. Automaton has 15711 states and 22762 transitions. Word has length 45 [2022-11-22 01:39:10,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:10,552 INFO L495 AbstractCegarLoop]: Abstraction has 15711 states and 22762 transitions. [2022-11-22 01:39:10,553 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) [2022-11-22 01:39:10,553 INFO L276 IsEmpty]: Start isEmpty. Operand 15711 states and 22762 transitions. [2022-11-22 01:39:10,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-22 01:39:10,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:10,556 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2022-11-22 01:39:10,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:39:10,557 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)] === [2022-11-22 01:39:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash -65105241, now seen corresponding path program 1 times [2022-11-22 01:39:10,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:10,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158156768] [2022-11-22 01:39:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:10,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-22 01:39:13,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:13,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158156768] [2022-11-22 01:39:13,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158156768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:13,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:13,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:39:13,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835283548] [2022-11-22 01:39:13,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:13,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:39:13,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:13,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:39:13,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:39:13,011 INFO L87 Difference]: Start difference. First operand 15711 states and 22762 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, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:39:16,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:21,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:23,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:26,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:29,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:37,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:41,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:44,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:39:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:48,756 INFO L93 Difference]: Finished difference Result 16100 states and 23255 transitions. [2022-11-22 01:39:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:39:48,757 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, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 50 [2022-11-22 01:39:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:48,834 INFO L225 Difference]: With dead ends: 16100 [2022-11-22 01:39:48,834 INFO L226 Difference]: Without dead ends: 16096 [2022-11-22 01:39:48,847 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 [2022-11-22 01:39:48,848 INFO L413 NwaCegarLoop]: 4285 mSDtfsCounter, 3254 mSDsluCounter, 12095 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 16380 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:48,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3259 Valid, 16380 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1201 Invalid, 5 Unknown, 0 Unchecked, 35.2s Time] [2022-11-22 01:39:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16096 states. [2022-11-22 01:39:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16096 to 16065. [2022-11-22 01:39:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16065 states, 9996 states have (on average 1.3149259703881553) internal successors, (13144), 10163 states have internal predecessors, (13144), 4982 states have call successors, (4982), 1098 states have call predecessors, (4982), 1084 states have return successors, (5096), 4916 states have call predecessors, (5096), 4964 states have call successors, (5096) [2022-11-22 01:39:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16065 states to 16065 states and 23222 transitions. [2022-11-22 01:39:49,726 INFO L78 Accepts]: Start accepts. Automaton has 16065 states and 23222 transitions. Word has length 50 [2022-11-22 01:39:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:49,726 INFO L495 AbstractCegarLoop]: Abstraction has 16065 states and 23222 transitions. [2022-11-22 01:39:49,727 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, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-22 01:39:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 16065 states and 23222 transitions. [2022-11-22 01:39:49,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-22 01:39:49,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:49,729 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] [2022-11-22 01:39:49,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:39:49,729 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)] === [2022-11-22 01:39:49,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:49,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1305246440, now seen corresponding path program 1 times [2022-11-22 01:39:49,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:49,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226989615] [2022-11-22 01:39:49,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:49,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-22 01:39:52,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:52,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226989615] [2022-11-22 01:39:52,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226989615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:52,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:52,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:39:52,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118925592] [2022-11-22 01:39:52,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:52,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:39:52,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:52,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:39:52,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:39:52,039 INFO L87 Difference]: Start difference. First operand 16065 states and 23222 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) [2022-11-22 01:39:55,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:39:57,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:00,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:01,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:04,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:08,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:13,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:15,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:20,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:21,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:24,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:27,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:30,196 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 [] [2022-11-22 01:40:32,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:32,375 INFO L93 Difference]: Finished difference Result 16526 states and 23799 transitions. [2022-11-22 01:40:32,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:40:32,375 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 [2022-11-22 01:40:32,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:32,462 INFO L225 Difference]: With dead ends: 16526 [2022-11-22 01:40:32,463 INFO L226 Difference]: Without dead ends: 16228 [2022-11-22 01:40:32,480 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 [2022-11-22 01:40:32,482 INFO L413 NwaCegarLoop]: 4284 mSDtfsCounter, 3300 mSDsluCounter, 12092 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3303 SdHoareTripleChecker+Valid, 16376 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:32,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3303 Valid, 16376 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1182 Invalid, 6 Unknown, 0 Unchecked, 39.8s Time] [2022-11-22 01:40:32,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16228 states. [2022-11-22 01:40:33,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16228 to 16209. [2022-11-22 01:40:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16209 states, 10082 states have (on average 1.3135290616941082) internal successors, (13243), 10248 states have internal predecessors, (13243), 4999 states have call successors, (4999), 1138 states have call predecessors, (4999), 1125 states have return successors, (5112), 4932 states have call predecessors, (5112), 4984 states have call successors, (5112) [2022-11-22 01:40:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16209 states to 16209 states and 23354 transitions. [2022-11-22 01:40:33,500 INFO L78 Accepts]: Start accepts. Automaton has 16209 states and 23354 transitions. Word has length 55 [2022-11-22 01:40:33,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:33,500 INFO L495 AbstractCegarLoop]: Abstraction has 16209 states and 23354 transitions. [2022-11-22 01:40:33,500 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) [2022-11-22 01:40:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 16209 states and 23354 transitions. [2022-11-22 01:40:33,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 01:40:33,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:33,503 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] [2022-11-22 01:40:33,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:40:33,503 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)] === [2022-11-22 01:40:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:33,504 INFO L85 PathProgramCache]: Analyzing trace with hash 911215182, now seen corresponding path program 1 times [2022-11-22 01:40:33,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:33,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101410382] [2022-11-22 01:40:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:33,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-22 01:40:37,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:37,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101410382] [2022-11-22 01:40:37,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101410382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:37,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:37,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:37,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899095210] [2022-11-22 01:40:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:37,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:37,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:37,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:37,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:37,238 INFO L87 Difference]: Start difference. First operand 16209 states and 23354 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) [2022-11-22 01:40:41,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:43,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:45,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:40:49,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:54,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:56,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:40:59,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:01,815 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 [] [2022-11-22 01:41:02,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:02,257 INFO L93 Difference]: Finished difference Result 33314 states and 48156 transitions. [2022-11-22 01:41:02,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:41:02,258 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 [2022-11-22 01:41:02,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:02,343 INFO L225 Difference]: With dead ends: 33314 [2022-11-22 01:41:02,343 INFO L226 Difference]: Without dead ends: 17119 [2022-11-22 01:41:02,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:41:02,428 INFO L413 NwaCegarLoop]: 3769 mSDtfsCounter, 153 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 7343 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:02,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 7343 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 614 Invalid, 6 Unknown, 0 Unchecked, 24.4s Time] [2022-11-22 01:41:02,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17119 states. [2022-11-22 01:41:03,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17119 to 16215. [2022-11-22 01:41:03,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16215 states, 10088 states have (on average 1.3133425852498017) internal successors, (13249), 10254 states have internal predecessors, (13249), 4999 states have call successors, (4999), 1138 states have call predecessors, (4999), 1125 states have return successors, (5112), 4932 states have call predecessors, (5112), 4984 states have call successors, (5112) [2022-11-22 01:41:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16215 states to 16215 states and 23360 transitions. [2022-11-22 01:41:03,335 INFO L78 Accepts]: Start accepts. Automaton has 16215 states and 23360 transitions. Word has length 100 [2022-11-22 01:41:03,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:03,337 INFO L495 AbstractCegarLoop]: Abstraction has 16215 states and 23360 transitions. [2022-11-22 01:41:03,337 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) [2022-11-22 01:41:03,337 INFO L276 IsEmpty]: Start isEmpty. Operand 16215 states and 23360 transitions. [2022-11-22 01:41:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:41:03,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:03,339 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] [2022-11-22 01:41:03,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:41:03,340 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)] === [2022-11-22 01:41:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:03,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1713999456, now seen corresponding path program 1 times [2022-11-22 01:41:03,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:41:03,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682527935] [2022-11-22 01:41:03,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:03,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:41:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-22 01:41:04,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:41:04,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682527935] [2022-11-22 01:41:04,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682527935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:04,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:04,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:41:04,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560702784] [2022-11-22 01:41:04,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:04,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:41:04,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:04,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:41:04,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:41:04,667 INFO L87 Difference]: Start difference. First operand 16215 states and 23360 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) [2022-11-22 01:41:08,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:11,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:14,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:17,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:19,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:23,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:27,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:29,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:31,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:31,753 INFO L93 Difference]: Finished difference Result 33326 states and 48168 transitions. [2022-11-22 01:41:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:41:31,754 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 [2022-11-22 01:41:31,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:31,837 INFO L225 Difference]: With dead ends: 33326 [2022-11-22 01:41:31,837 INFO L226 Difference]: Without dead ends: 17125 [2022-11-22 01:41:31,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:41:31,903 INFO L413 NwaCegarLoop]: 3767 mSDtfsCounter, 158 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 7340 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:31,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 7340 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 614 Invalid, 6 Unknown, 0 Unchecked, 26.5s Time] [2022-11-22 01:41:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17125 states. [2022-11-22 01:41:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17125 to 16215. [2022-11-22 01:41:32,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16215 states, 10088 states have (on average 1.3133425852498017) internal successors, (13249), 10254 states have internal predecessors, (13249), 4999 states have call successors, (4999), 1138 states have call predecessors, (4999), 1125 states have return successors, (5112), 4932 states have call predecessors, (5112), 4984 states have call successors, (5112) [2022-11-22 01:41:32,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16215 states to 16215 states and 23360 transitions. [2022-11-22 01:41:32,828 INFO L78 Accepts]: Start accepts. Automaton has 16215 states and 23360 transitions. Word has length 113 [2022-11-22 01:41:32,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:32,829 INFO L495 AbstractCegarLoop]: Abstraction has 16215 states and 23360 transitions. [2022-11-22 01:41:32,829 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) [2022-11-22 01:41:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 16215 states and 23360 transitions. [2022-11-22 01:41:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:41:32,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:32,831 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] [2022-11-22 01:41:32,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:41:32,832 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)] === [2022-11-22 01:41:32,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:32,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1705102825, now seen corresponding path program 1 times [2022-11-22 01:41:32,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:41:32,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215285705] [2022-11-22 01:41:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:32,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:41:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:41:36,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:41:36,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215285705] [2022-11-22 01:41:36,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215285705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:36,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:36,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:41:36,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183836847] [2022-11-22 01:41:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:36,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:41:36,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:41:36,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:41:36,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:36,137 INFO L87 Difference]: Start difference. First operand 16215 states and 23360 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) [2022-11-22 01:41:40,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:42,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:48,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:50,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:54,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:55,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:57,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:41:59,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:01,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:03,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:05,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:08,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:10,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:12,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:18,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:21,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:24,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:29,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:29,010 INFO L93 Difference]: Finished difference Result 16416 states and 23591 transitions. [2022-11-22 01:42:29,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:42:29,011 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 [2022-11-22 01:42:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:29,091 INFO L225 Difference]: With dead ends: 16416 [2022-11-22 01:42:29,091 INFO L226 Difference]: Without dead ends: 16414 [2022-11-22 01:42:29,169 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 [2022-11-22 01:42:29,174 INFO L413 NwaCegarLoop]: 5568 mSDtfsCounter, 3098 mSDsluCounter, 14548 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 20116 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:29,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 20116 Invalid, 1593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1582 Invalid, 9 Unknown, 0 Unchecked, 52.2s Time] [2022-11-22 01:42:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16414 states. [2022-11-22 01:42:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16414 to 16361. [2022-11-22 01:42:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16361 states, 10174 states have (on average 1.3126597208570867) internal successors, (13355), 10344 states have internal predecessors, (13355), 5031 states have call successors, (5031), 1164 states have call predecessors, (5031), 1153 states have return successors, (5144), 4962 states have call predecessors, (5144), 5016 states have call successors, (5144) [2022-11-22 01:42:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16361 states to 16361 states and 23530 transitions. [2022-11-22 01:42:29,936 INFO L78 Accepts]: Start accepts. Automaton has 16361 states and 23530 transitions. Word has length 115 [2022-11-22 01:42:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:29,937 INFO L495 AbstractCegarLoop]: Abstraction has 16361 states and 23530 transitions. [2022-11-22 01:42:29,937 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) [2022-11-22 01:42:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 16361 states and 23530 transitions. [2022-11-22 01:42:29,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 01:42:29,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:29,939 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] [2022-11-22 01:42:29,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:42:29,940 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)] === [2022-11-22 01:42:29,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash 499240552, now seen corresponding path program 1 times [2022-11-22 01:42:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:29,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712986802] [2022-11-22 01:42:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:42:32,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:32,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712986802] [2022-11-22 01:42:32,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712986802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:32,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:32,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:42:32,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416700629] [2022-11-22 01:42:32,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:32,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:42:32,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:32,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:42:32,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:42:32,461 INFO L87 Difference]: Start difference. First operand 16361 states and 23530 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) [2022-11-22 01:42:36,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:42,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:43,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:49,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:42:52,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:54,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:56,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:42:57,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:04,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:08,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:11,798 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 [] [2022-11-22 01:43:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:14,794 INFO L93 Difference]: Finished difference Result 18629 states and 26782 transitions. [2022-11-22 01:43:14,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:43:14,795 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 [2022-11-22 01:43:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:14,869 INFO L225 Difference]: With dead ends: 18629 [2022-11-22 01:43:14,869 INFO L226 Difference]: Without dead ends: 18627 [2022-11-22 01:43:14,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:43:14,883 INFO L413 NwaCegarLoop]: 3966 mSDtfsCounter, 1790 mSDsluCounter, 11361 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 15327 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:14,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 15327 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1222 Invalid, 5 Unknown, 0 Unchecked, 41.7s Time] [2022-11-22 01:43:14,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18627 states. [2022-11-22 01:43:15,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18627 to 18613. [2022-11-22 01:43:15,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18613 states, 11603 states have (on average 1.3135396018271137) internal successors, (15241), 11778 states have internal predecessors, (15241), 5697 states have call successors, (5697), 1321 states have call predecessors, (5697), 1310 states have return successors, (5824), 5627 states have call predecessors, (5824), 5682 states have call successors, (5824) [2022-11-22 01:43:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18613 states to 18613 states and 26762 transitions. [2022-11-22 01:43:15,755 INFO L78 Accepts]: Start accepts. Automaton has 18613 states and 26762 transitions. Word has length 138 [2022-11-22 01:43:15,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:15,755 INFO L495 AbstractCegarLoop]: Abstraction has 18613 states and 26762 transitions. [2022-11-22 01:43:15,756 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) [2022-11-22 01:43:15,756 INFO L276 IsEmpty]: Start isEmpty. Operand 18613 states and 26762 transitions. [2022-11-22 01:43:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-22 01:43:15,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:15,758 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] [2022-11-22 01:43:15,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:43:15,759 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)] === [2022-11-22 01:43:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:15,759 INFO L85 PathProgramCache]: Analyzing trace with hash -775990268, now seen corresponding path program 1 times [2022-11-22 01:43:15,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:43:15,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731597953] [2022-11-22 01:43:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:15,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:43:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:43:21,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:43:21,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731597953] [2022-11-22 01:43:21,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731597953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:21,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:43:21,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:43:21,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954062283] [2022-11-22 01:43:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:21,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:43:21,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:43:21,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:43:21,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:43:21,179 INFO L87 Difference]: Start difference. First operand 18613 states and 26762 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) [2022-11-22 01:43:25,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:29,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:31,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:33,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:35,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:37,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:41,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:43,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:45,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:43:48,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:50,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:56,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:58,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:02,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:05,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:07,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:10,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:10,679 INFO L93 Difference]: Finished difference Result 18671 states and 26829 transitions. [2022-11-22 01:44:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:44:10,679 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 [2022-11-22 01:44:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:10,758 INFO L225 Difference]: With dead ends: 18671 [2022-11-22 01:44:10,758 INFO L226 Difference]: Without dead ends: 18669 [2022-11-22 01:44:10,775 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 [2022-11-22 01:44:10,775 INFO L413 NwaCegarLoop]: 5138 mSDtfsCounter, 3634 mSDsluCounter, 13808 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 18946 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:10,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3638 Valid, 18946 Invalid, 1437 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1428 Invalid, 6 Unknown, 0 Unchecked, 48.8s Time] [2022-11-22 01:44:10,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18669 states. [2022-11-22 01:44:11,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18669 to 18657. [2022-11-22 01:44:11,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18657 states, 11630 states have (on average 1.3128116938950989) internal successors, (15268), 11809 states have internal predecessors, (15268), 5709 states have call successors, (5709), 1330 states have call predecessors, (5709), 1315 states have return successors, (5836), 5631 states have call predecessors, (5836), 5694 states have call successors, (5836) [2022-11-22 01:44:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18657 states to 18657 states and 26813 transitions. [2022-11-22 01:44:11,656 INFO L78 Accepts]: Start accepts. Automaton has 18657 states and 26813 transitions. Word has length 148 [2022-11-22 01:44:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:11,657 INFO L495 AbstractCegarLoop]: Abstraction has 18657 states and 26813 transitions. [2022-11-22 01:44:11,657 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) [2022-11-22 01:44:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 18657 states and 26813 transitions. [2022-11-22 01:44:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-22 01:44:11,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:11,662 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] [2022-11-22 01:44:11,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:44:11,662 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)] === [2022-11-22 01:44:11,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:11,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1753653320, now seen corresponding path program 1 times [2022-11-22 01:44:11,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:11,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687228661] [2022-11-22 01:44:11,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:11,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:44:13,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:13,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687228661] [2022-11-22 01:44:13,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687228661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:13,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:13,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:44:13,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725781444] [2022-11-22 01:44:13,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:13,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:13,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:13,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:13,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:13,358 INFO L87 Difference]: Start difference. First operand 18657 states and 26813 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) [2022-11-22 01:44:17,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:21,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:23,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:26,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:29,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:32,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:34,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:44:37,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:39,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:41,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:48,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:50,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:52,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:55,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:44:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:59,029 INFO L93 Difference]: Finished difference Result 37355 states and 53914 transitions. [2022-11-22 01:44:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:59,030 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 [2022-11-22 01:44:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:59,100 INFO L225 Difference]: With dead ends: 37355 [2022-11-22 01:44:59,100 INFO L226 Difference]: Without dead ends: 18712 [2022-11-22 01:44:59,170 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 [2022-11-22 01:44:59,170 INFO L413 NwaCegarLoop]: 3572 mSDtfsCounter, 19 mSDsluCounter, 10688 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 14260 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:59,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 14260 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1179 Invalid, 9 Unknown, 0 Unchecked, 44.9s Time] [2022-11-22 01:44:59,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18712 states. [2022-11-22 01:44:59,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18712 to 18677. [2022-11-22 01:44:59,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18677 states, 11645 states have (on average 1.3124087591240876) internal successors, (15283), 11824 states have internal predecessors, (15283), 5709 states have call successors, (5709), 1330 states have call predecessors, (5709), 1320 states have return successors, (5846), 5636 states have call predecessors, (5846), 5694 states have call successors, (5846) [2022-11-22 01:45:00,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18677 states to 18677 states and 26838 transitions. [2022-11-22 01:45:00,007 INFO L78 Accepts]: Start accepts. Automaton has 18677 states and 26838 transitions. Word has length 171 [2022-11-22 01:45:00,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:00,008 INFO L495 AbstractCegarLoop]: Abstraction has 18677 states and 26838 transitions. [2022-11-22 01:45:00,008 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) [2022-11-22 01:45:00,008 INFO L276 IsEmpty]: Start isEmpty. Operand 18677 states and 26838 transitions. [2022-11-22 01:45:00,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-22 01:45:00,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:00,013 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] [2022-11-22 01:45:00,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:45:00,014 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)] === [2022-11-22 01:45:00,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:00,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1358807248, now seen corresponding path program 1 times [2022-11-22 01:45:00,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:00,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386045932] [2022-11-22 01:45:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:00,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:45:01,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:01,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386045932] [2022-11-22 01:45:01,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386045932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:01,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:01,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:45:01,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864444424] [2022-11-22 01:45:01,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:01,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:45:01,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:45:01,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:01,366 INFO L87 Difference]: Start difference. First operand 18677 states and 26838 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) [2022-11-22 01:45:04,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:10,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:45:13,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:18,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:21,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:24,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:45:25,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:25,830 INFO L93 Difference]: Finished difference Result 37390 states and 53974 transitions. [2022-11-22 01:45:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:45:25,831 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 [2022-11-22 01:45:25,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:25,905 INFO L225 Difference]: With dead ends: 37390 [2022-11-22 01:45:25,906 INFO L226 Difference]: Without dead ends: 18727 [2022-11-22 01:45:25,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:25,967 INFO L413 NwaCegarLoop]: 3557 mSDtfsCounter, 2 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:25,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7109 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 590 Invalid, 5 Unknown, 0 Unchecked, 23.8s Time] [2022-11-22 01:45:25,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18727 states. [2022-11-22 01:45:26,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18727 to 18687. [2022-11-22 01:45:26,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18687 states, 11655 states have (on average 1.312140712140712) internal successors, (15293), 11834 states have internal predecessors, (15293), 5709 states have call successors, (5709), 1330 states have call predecessors, (5709), 1320 states have return successors, (5846), 5636 states have call predecessors, (5846), 5694 states have call successors, (5846) [2022-11-22 01:45:27,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18687 states to 18687 states and 26848 transitions. [2022-11-22 01:45:27,038 INFO L78 Accepts]: Start accepts. Automaton has 18687 states and 26848 transitions. Word has length 174 [2022-11-22 01:45:27,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:27,038 INFO L495 AbstractCegarLoop]: Abstraction has 18687 states and 26848 transitions. [2022-11-22 01:45:27,039 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) [2022-11-22 01:45:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 18687 states and 26848 transitions. [2022-11-22 01:45:27,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-22 01:45:27,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:27,045 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] [2022-11-22 01:45:27,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:45:27,045 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)] === [2022-11-22 01:45:27,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:27,046 INFO L85 PathProgramCache]: Analyzing trace with hash 844649052, now seen corresponding path program 1 times [2022-11-22 01:45:27,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:27,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970942063] [2022-11-22 01:45:27,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:27,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:28,889 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:45:28,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:28,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970942063] [2022-11-22 01:45:28,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970942063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:45:28,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935817595] [2022-11-22 01:45:28,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:28,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:45:28,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:45:28,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:45:28,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14118a0c-7bb8-4c45-8ea6-ff83bcf214aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:45:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:33,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 15986 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:45:33,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:45:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:45:33,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:45:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 01:45:34,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935817595] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:45:34,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1169373206] [2022-11-22 01:45:34,199 INFO L159 IcfgInterpreter]: Started Sifa with 145 locations of interest [2022-11-22 01:45:34,200 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:45:34,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:45:34,210 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:45:34,210 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs