./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/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 f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- 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 01:57:45,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:57:45,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:57:45,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:57:45,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:57:46,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:57:46,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:57:46,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:57:46,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:57:46,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:57:46,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:57:46,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:57:46,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:57:46,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:57:46,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:57:46,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:57:46,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:57:46,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:57:46,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:57:46,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:57:46,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:57:46,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:57:46,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:57:46,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:57:46,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:57:46,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:57:46,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:57:46,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:57:46,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:57:46,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:57:46,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:57:46,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:57:46,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:57:46,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:57:46,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:57:46,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:57:46,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:57:46,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:57:46,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:57:46,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:57:46,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:57:46,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:57:46,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:57:46,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:57:46,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:57:46,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:57:46,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:57:46,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:57:46,122 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:57:46,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:57:46,123 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:57:46,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:57:46,124 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:57:46,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:57:46,125 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:57:46,125 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:57:46,125 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:57:46,125 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:57:46,126 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:57:46,126 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:57:46,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:57:46,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:57:46,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:57:46,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:57:46,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:57:46,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:57:46,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:57:46,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:57:46,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:57:46,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:57:46,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:57:46,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:57:46,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:57:46,131 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:57:46,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:57:46,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:57:46,132 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:57:46,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:57:46,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:57:46,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:57:46,133 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2022-11-22 01:57:46,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:57:46,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:57:46,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:57:46,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:57:46,473 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:57:46,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-22 01:57:49,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:57:50,159 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:57:50,160 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-22 01:57:50,208 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data/b5d962cd0/2d3b0e1e65924083adb8d5cfd852c03f/FLAGac4e37045 [2022-11-22 01:57:50,221 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data/b5d962cd0/2d3b0e1e65924083adb8d5cfd852c03f [2022-11-22 01:57:50,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:57:50,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:57:50,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:57:50,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:57:50,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:57:50,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:50" (1/1) ... [2022-11-22 01:57:50,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34242dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:50, skipping insertion in model container [2022-11-22 01:57:50,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:50" (1/1) ... [2022-11-22 01:57:50,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:57:50,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:57:51,911 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: Unknown Expression ArrayAccessExpression at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:367) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:57:51,919 INFO L158 Benchmark]: Toolchain (without parser) took 1691.77ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 67.5MB in the beginning and 82.5MB in the end (delta: -15.0MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-22 01:57:51,919 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 117.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:57:51,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1689.60ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 67.1MB in the beginning and 82.5MB in the end (delta: -15.4MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-22 01:57:51,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 117.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1689.60ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 67.1MB in the beginning and 82.5MB in the end (delta: -15.4MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: Unknown Expression ArrayAccessExpression de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: Unknown Expression ArrayAccessExpression: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:424) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/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 f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- 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 01:57:54,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:57:54,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:57:54,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:57:54,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:57:54,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:57:54,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:57:54,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:57:54,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:57:54,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:57:54,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:57:54,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:57:54,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:57:54,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:57:54,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:57:54,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:57:54,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:57:54,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:57:54,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:57:54,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:57:54,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:57:54,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:57:54,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:57:54,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:57:54,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:57:54,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:57:54,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:57:54,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:57:54,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:57:54,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:57:54,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:57:54,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:57:54,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:57:54,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:57:54,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:57:54,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:57:54,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:57:54,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:57:54,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:57:54,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:57:54,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:57:54,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:57:54,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:57:54,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:57:54,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:57:54,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:57:54,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:57:54,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:57:54,297 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:57:54,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:57:54,297 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:57:54,298 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:57:54,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:57:54,299 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:57:54,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:57:54,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:57:54,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:57:54,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:57:54,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:57:54,301 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:57:54,301 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:57:54,301 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:57:54,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:57:54,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:57:54,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:57:54,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:57:54,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:57:54,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:57:54,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:57:54,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:57:54,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:57:54,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:57:54,303 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:57:54,304 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:57:54,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:57:54,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:57:54,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:57:54,305 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2022-11-22 01:57:54,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:57:54,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:57:54,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:57:54,736 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:57:54,737 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:57:54,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-22 01:57:57,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:57:58,367 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:57:58,368 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-22 01:57:58,418 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data/c113a3c20/796fa0f435c44f69be2c77c9378bac84/FLAG29b1a9369 [2022-11-22 01:57:58,433 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/data/c113a3c20/796fa0f435c44f69be2c77c9378bac84 [2022-11-22 01:57:58,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:57:58,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:57:58,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:57:58,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:57:58,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:57:58,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:58" (1/1) ... [2022-11-22 01:57:58,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b090e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:57:58, skipping insertion in model container [2022-11-22 01:57:58,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:57:58" (1/1) ... [2022-11-22 01:57:58,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:57:58,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:58:01,462 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-22 01:58:01,466 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-22 01:58:01,467 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-22 01:58:01,468 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-22 01:58:01,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:58:01,563 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-22 01:58:01,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:58:02,249 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-22 01:58:02,249 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-22 01:58:02,250 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-22 01:58:02,250 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-22 01:58:02,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:58:02,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:58:02,727 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-22 01:58:02,727 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-22 01:58:02,728 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-22 01:58:02,728 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_cae4bdb8-d009-4e6e-9078-262ce0ae2061/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-22 01:58:02,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:58:02,995 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:58:02,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02 WrapperNode [2022-11-22 01:58:02,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:58:02,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:58:02,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:58:02,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:58:03,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,298 INFO L138 Inliner]: procedures = 401, calls = 2496, calls flagged for inlining = 201, calls inlined = 150, statements flattened = 4694 [2022-11-22 01:58:03,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:58:03,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:58:03,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:58:03,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:58:03,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,583 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:58:03,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:58:03,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:58:03,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:58:03,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (1/1) ... [2022-11-22 01:58:03,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:58:03,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:03,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:58:03,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:58:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:58:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:58:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:58:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:58:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-22 01:58:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-22 01:58:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:58:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:58:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:58:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:58:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_stereo_mono [2022-11-22 01:58:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_stereo_mono [2022-11-22 01:58:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:58:03,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:58:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_len [2022-11-22 01:58:03,758 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_len [2022-11-22 01:58:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-22 01:58:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-22 01:58:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:58:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:58:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:58:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:58:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-22 01:58:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-22 01:58:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:58:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:58:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:58:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:58:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 01:58:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 01:58:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:58:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-22 01:58:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-22 01:58:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-22 01:58:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:58:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:58:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-22 01:58:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure st_unregister [2022-11-22 01:58:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure st_unregister [2022-11-22 01:58:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-22 01:58:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-22 01:58:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:58:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:58:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:58:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:58:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_fmdev [2022-11-22 01:58:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_fmdev [2022-11-22 01:58:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_release [2022-11-22 01:58:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_release [2022-11-22 01:58:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:58:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:58:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_fmdev [2022-11-22 01:58:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_fmdev [2022-11-22 01:58:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:58:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:58:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:58:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:58:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_rds_mode [2022-11-22 01:58:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_rds_mode [2022-11-22 01:58:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-22 01:58:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-22 01:58:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-22 01:58:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-22 01:58:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_rds_mode [2022-11-22 01:58:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_rds_mode [2022-11-22 01:58:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:58:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:58:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:58:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:58:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:58:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:58:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:58:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-22 01:58:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-22 01:58:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:58:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:58:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:58:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:58:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-22 01:58:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-22 01:58:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-22 01:58:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-22 01:58:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-22 01:58:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-22 01:58:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-22 01:58:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_preemph_filter [2022-11-22 01:58:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_preemph_filter [2022-11-22 01:58:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-22 01:58:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-22 01:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-22 01:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-22 01:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-22 01:58:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:58:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:58:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-22 01:58:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-22 01:58:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-22 01:58:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:58:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:58:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure fm_config_rx_mute_reg [2022-11-22 01:58:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_config_rx_mute_reg [2022-11-22 01:58:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-22 01:58:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-22 01:58:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-22 01:58:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:58:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:58:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-22 01:58:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:58:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_data_mode [2022-11-22 01:58:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_data_mode [2022-11-22 01:58:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:58:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:58:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_pwr_lvl [2022-11-22 01:58:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_pwr_lvl [2022-11-22 01:58:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-22 01:58:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-22 01:58:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_prepare [2022-11-22 01:58:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_prepare [2022-11-22 01:58:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_send_cmd [2022-11-22 01:58:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_send_cmd [2022-11-22 01:58:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-22 01:58:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-22 01:58:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure fm_send_cmd [2022-11-22 01:58:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_send_cmd [2022-11-22 01:58:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:58:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:58:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:58:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:58:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call_stage [2022-11-22 01:58:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call_stage [2022-11-22 01:58:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-22 01:58:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-22 01:58:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-22 01:58:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-22 01:58:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:58:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2022-11-22 01:58:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2022-11-22 01:58:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:58:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-22 01:58:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_rds_cache [2022-11-22 01:58:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_rds_cache [2022-11-22 01:58:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-22 01:58:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_station_info [2022-11-22 01:58:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_station_info [2022-11-22 01:58:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-22 01:58:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:58:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:58:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-22 01:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-22 01:58:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2022-11-22 01:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2022-11-22 01:58:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure enable_xmit [2022-11-22 01:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_xmit [2022-11-22 01:58:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 01:58:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 01:58:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_volume [2022-11-22 01:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_volume [2022-11-22 01:58:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:58:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 01:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 01:58:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-22 01:58:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-22 01:58:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:58:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:58:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:58:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2022-11-22 01:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2022-11-22 01:58:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_text [2022-11-22 01:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_text [2022-11-22 01:58:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-22 01:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-22 01:58:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:58:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:58:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:58:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:58:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:58:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:58:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:58:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-22 01:58:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-22 01:58:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-22 01:58:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-22 01:58:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-22 01:58:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-22 01:58:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-22 01:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-22 01:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:58:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:58:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_freq [2022-11-22 01:58:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_freq [2022-11-22 01:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_mode [2022-11-22 01:58:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_mode [2022-11-22 01:58:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_write [2022-11-22 01:58:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_write [2022-11-22 01:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-22 01:58:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-22 01:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call [2022-11-22 01:58:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call [2022-11-22 01:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:58:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:58:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:58:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:58:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure fm_power_down [2022-11-22 01:58:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_power_down [2022-11-22 01:58:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure fm_download_firmware [2022-11-22 01:58:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_download_firmware [2022-11-22 01:58:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:58:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:58:04,721 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:58:04,731 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:58:04,933 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:58:32,493 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:58:32,684 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:58:32,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:58:32,702 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:58:32,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:58:32 BoogieIcfgContainer [2022-11-22 01:58:32,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:58:32,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:58:32,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:58:32,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:58:32,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:57:58" (1/3) ... [2022-11-22 01:58:32,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af40dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:58:32, skipping insertion in model container [2022-11-22 01:58:32,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:58:02" (2/3) ... [2022-11-22 01:58:32,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af40dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:58:32, skipping insertion in model container [2022-11-22 01:58:32,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:58:32" (3/3) ... [2022-11-22 01:58:32,715 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-22 01:58:32,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:58:32,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:58:32,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:58:32,848 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;@516d01a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:58:32,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:58:32,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 1665 states, 1160 states have (on average 1.318103448275862) internal successors, (1529), 1176 states have internal predecessors, (1529), 410 states have call successors, (410), 93 states have call predecessors, (410), 92 states have return successors, (403), 400 states have call predecessors, (403), 403 states have call successors, (403) [2022-11-22 01:58:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-11-22 01:58:32,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:32,903 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:32,904 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 01:58:32,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:32,909 INFO L85 PathProgramCache]: Analyzing trace with hash 722411318, now seen corresponding path program 1 times [2022-11-22 01:58:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:32,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893359108] [2022-11-22 01:58:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:32,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:32,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:32,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:58:32,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:58:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:34,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 2152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:58:34,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:34,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-11-22 01:58:34,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:34,877 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:34,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893359108] [2022-11-22 01:58:34,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893359108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:34,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:34,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:58:34,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818456292] [2022-11-22 01:58:34,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:34,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:58:34,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:34,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:58:34,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:34,919 INFO L87 Difference]: Start difference. First operand has 1665 states, 1160 states have (on average 1.318103448275862) internal successors, (1529), 1176 states have internal predecessors, (1529), 410 states have call successors, (410), 93 states have call predecessors, (410), 92 states have return successors, (403), 400 states have call predecessors, (403), 403 states have call successors, (403) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:58:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:35,940 INFO L93 Difference]: Finished difference Result 4724 states and 6703 transitions. [2022-11-22 01:58:35,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:35,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 241 [2022-11-22 01:58:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:35,995 INFO L225 Difference]: With dead ends: 4724 [2022-11-22 01:58:35,996 INFO L226 Difference]: Without dead ends: 3091 [2022-11-22 01:58:36,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 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 01:58:36,024 INFO L413 NwaCegarLoop]: 2677 mSDtfsCounter, 2151 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 4844 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:36,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 4844 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:58:36,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2022-11-22 01:58:36,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 3087. [2022-11-22 01:58:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 2174 states have (on average 1.3201471941122356) internal successors, (2870), 2204 states have internal predecessors, (2870), 735 states have call successors, (735), 176 states have call predecessors, (735), 175 states have return successors, (731), 725 states have call predecessors, (731), 731 states have call successors, (731) [2022-11-22 01:58:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 4336 transitions. [2022-11-22 01:58:36,395 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 4336 transitions. Word has length 241 [2022-11-22 01:58:36,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:36,400 INFO L495 AbstractCegarLoop]: Abstraction has 3087 states and 4336 transitions. [2022-11-22 01:58:36,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:58:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 4336 transitions. [2022-11-22 01:58:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-22 01:58:36,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:36,415 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:36,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:36,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:36,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:36,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:36,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2043684690, now seen corresponding path program 1 times [2022-11-22 01:58:36,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:36,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980086431] [2022-11-22 01:58:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:36,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:36,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:36,638 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:58:36,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:58:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:38,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:58:38,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:38,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-11-22 01:58:38,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:38,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:38,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980086431] [2022-11-22 01:58:38,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980086431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:38,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:38,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:58:38,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757967693] [2022-11-22 01:58:38,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:38,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:58:38,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:38,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:58:38,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:38,505 INFO L87 Difference]: Start difference. First operand 3087 states and 4336 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:58:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:39,489 INFO L93 Difference]: Finished difference Result 6185 states and 8560 transitions. [2022-11-22 01:58:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:39,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 267 [2022-11-22 01:58:39,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:39,510 INFO L225 Difference]: With dead ends: 6185 [2022-11-22 01:58:39,510 INFO L226 Difference]: Without dead ends: 3141 [2022-11-22 01:58:39,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 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 01:58:39,525 INFO L413 NwaCegarLoop]: 2564 mSDtfsCounter, 1052 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 4796 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:39,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 4796 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:58:39,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2022-11-22 01:58:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 3120. [2022-11-22 01:58:39,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2183 states have (on average 1.2922583600549702) internal successors, (2821), 2225 states have internal predecessors, (2821), 713 states have call successors, (713), 222 states have call predecessors, (713), 221 states have return successors, (709), 695 states have call predecessors, (709), 709 states have call successors, (709) [2022-11-22 01:58:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4243 transitions. [2022-11-22 01:58:39,688 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4243 transitions. Word has length 267 [2022-11-22 01:58:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:39,689 INFO L495 AbstractCegarLoop]: Abstraction has 3120 states and 4243 transitions. [2022-11-22 01:58:39,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:58:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4243 transitions. [2022-11-22 01:58:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-22 01:58:39,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:39,698 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:39,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:39,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:39,913 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 01:58:39,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1743261002, now seen corresponding path program 1 times [2022-11-22 01:58:39,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:39,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019228488] [2022-11-22 01:58:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:39,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:39,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:39,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:58:39,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 01:58:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:41,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 2284 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:58:41,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 1719 trivial. 0 not checked. [2022-11-22 01:58:41,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:41,584 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:41,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019228488] [2022-11-22 01:58:41,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019228488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:41,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:41,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:58:41,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172410058] [2022-11-22 01:58:41,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:41,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:58:41,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:41,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:58:41,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:41,591 INFO L87 Difference]: Start difference. First operand 3120 states and 4243 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:58:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:42,429 INFO L93 Difference]: Finished difference Result 7663 states and 10494 transitions. [2022-11-22 01:58:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:42,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 302 [2022-11-22 01:58:42,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:42,466 INFO L225 Difference]: With dead ends: 7663 [2022-11-22 01:58:42,467 INFO L226 Difference]: Without dead ends: 5190 [2022-11-22 01:58:42,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 300 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 01:58:42,487 INFO L413 NwaCegarLoop]: 4284 mSDtfsCounter, 2009 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 6558 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:42,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 6558 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:58:42,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5190 states. [2022-11-22 01:58:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 5186. [2022-11-22 01:58:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 3650 states have (on average 1.3013698630136987) internal successors, (4750), 3713 states have internal predecessors, (4750), 1176 states have call successors, (1176), 358 states have call predecessors, (1176), 357 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-22 01:58:42,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 7098 transitions. [2022-11-22 01:58:42,771 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 7098 transitions. Word has length 302 [2022-11-22 01:58:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:42,772 INFO L495 AbstractCegarLoop]: Abstraction has 5186 states and 7098 transitions. [2022-11-22 01:58:42,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:58:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 7098 transitions. [2022-11-22 01:58:42,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-22 01:58:42,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:42,782 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:42,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:43,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:43,001 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 01:58:43,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -357057608, now seen corresponding path program 1 times [2022-11-22 01:58:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:43,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492165122] [2022-11-22 01:58:43,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:43,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:43,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:43,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:58:43,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-22 01:58:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:44,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 2284 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:58:44,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-22 01:58:47,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:47,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:47,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492165122] [2022-11-22 01:58:47,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492165122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:47,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:47,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:58:47,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239983093] [2022-11-22 01:58:47,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:47,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:58:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:47,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:58:47,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:58:47,081 INFO L87 Difference]: Start difference. First operand 5186 states and 7098 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-22 01:58:47,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:47,827 INFO L93 Difference]: Finished difference Result 5192 states and 7103 transitions. [2022-11-22 01:58:47,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:58:47,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 302 [2022-11-22 01:58:47,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:47,858 INFO L225 Difference]: With dead ends: 5192 [2022-11-22 01:58:47,858 INFO L226 Difference]: Without dead ends: 5190 [2022-11-22 01:58:47,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:58:47,864 INFO L413 NwaCegarLoop]: 2310 mSDtfsCounter, 2191 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 6924 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:47,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 6924 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:58:47,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5190 states. [2022-11-22 01:58:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 5190. [2022-11-22 01:58:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5190 states, 3653 states have (on average 1.3011223651793047) internal successors, (4753), 3716 states have internal predecessors, (4753), 1176 states have call successors, (1176), 359 states have call predecessors, (1176), 358 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-22 01:58:48,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5190 states to 5190 states and 7101 transitions. [2022-11-22 01:58:48,384 INFO L78 Accepts]: Start accepts. Automaton has 5190 states and 7101 transitions. Word has length 302 [2022-11-22 01:58:48,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:48,389 INFO L495 AbstractCegarLoop]: Abstraction has 5190 states and 7101 transitions. [2022-11-22 01:58:48,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-22 01:58:48,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5190 states and 7101 transitions. [2022-11-22 01:58:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-22 01:58:48,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:48,401 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:48,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:48,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:48,623 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 01:58:48,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:48,624 INFO L85 PathProgramCache]: Analyzing trace with hash 836647597, now seen corresponding path program 1 times [2022-11-22 01:58:48,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:48,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476229366] [2022-11-22 01:58:48,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:48,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:48,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:48,629 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:58:48,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-22 01:58:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:50,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:58:50,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-22 01:58:52,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:58:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-22 01:58:53,792 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:53,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476229366] [2022-11-22 01:58:53,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476229366] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:58:53,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:58:53,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:58:53,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935585067] [2022-11-22 01:58:53,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:53,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:58:53,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:53,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:58:53,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:58:53,794 INFO L87 Difference]: Start difference. First operand 5190 states and 7101 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:58:54,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:54,687 INFO L93 Difference]: Finished difference Result 5196 states and 7106 transitions. [2022-11-22 01:58:54,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:58:54,687 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 307 [2022-11-22 01:58:54,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:54,718 INFO L225 Difference]: With dead ends: 5196 [2022-11-22 01:58:54,718 INFO L226 Difference]: Without dead ends: 5194 [2022-11-22 01:58:54,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:58:54,722 INFO L413 NwaCegarLoop]: 2313 mSDtfsCounter, 2238 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:54,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 6926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:58:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2022-11-22 01:58:55,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 5194. [2022-11-22 01:58:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5194 states, 3656 states have (on average 1.3008752735229758) internal successors, (4756), 3719 states have internal predecessors, (4756), 1176 states have call successors, (1176), 360 states have call predecessors, (1176), 359 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-22 01:58:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 5194 states and 7104 transitions. [2022-11-22 01:58:55,123 INFO L78 Accepts]: Start accepts. Automaton has 5194 states and 7104 transitions. Word has length 307 [2022-11-22 01:58:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:55,124 INFO L495 AbstractCegarLoop]: Abstraction has 5194 states and 7104 transitions. [2022-11-22 01:58:55,124 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:58:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5194 states and 7104 transitions. [2022-11-22 01:58:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-22 01:58:55,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:55,135 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:55,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:55,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:55,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:55,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash 390522008, now seen corresponding path program 1 times [2022-11-22 01:58:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:55,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317576142] [2022-11-22 01:58:55,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:55,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:58:55,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:55,363 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:58:55,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-22 01:58:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:56,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 2298 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:58:56,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1811 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2022-11-22 01:58:59,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:59:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1811 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2022-11-22 01:59:00,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:59:00,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317576142] [2022-11-22 01:59:00,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317576142] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:59:00,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:59:00,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:59:00,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261969106] [2022-11-22 01:59:00,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:00,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:59:00,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:59:00,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:59:00,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:59:00,325 INFO L87 Difference]: Start difference. First operand 5194 states and 7104 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:59:01,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:01,213 INFO L93 Difference]: Finished difference Result 5200 states and 7109 transitions. [2022-11-22 01:59:01,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:59:01,213 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 312 [2022-11-22 01:59:01,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:01,245 INFO L225 Difference]: With dead ends: 5200 [2022-11-22 01:59:01,245 INFO L226 Difference]: Without dead ends: 5198 [2022-11-22 01:59:01,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:59:01,249 INFO L413 NwaCegarLoop]: 2313 mSDtfsCounter, 2238 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:01,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 6926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:59:01,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5198 states. [2022-11-22 01:59:01,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5198 to 5198. [2022-11-22 01:59:01,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 3659 states have (on average 1.3006285870456409) internal successors, (4759), 3722 states have internal predecessors, (4759), 1176 states have call successors, (1176), 361 states have call predecessors, (1176), 360 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-22 01:59:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 7107 transitions. [2022-11-22 01:59:01,670 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 7107 transitions. Word has length 312 [2022-11-22 01:59:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:01,672 INFO L495 AbstractCegarLoop]: Abstraction has 5198 states and 7107 transitions. [2022-11-22 01:59:01,672 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:59:01,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 7107 transitions. [2022-11-22 01:59:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-22 01:59:01,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:01,683 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:01,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:01,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:01,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:59:01,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:01,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1191169357, now seen corresponding path program 1 times [2022-11-22 01:59:01,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:59:01,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664523569] [2022-11-22 01:59:01,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:01,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:01,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:59:01,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:59:01,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-22 01:59:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:03,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 2305 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:59:03,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2022-11-22 01:59:05,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:59:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2022-11-22 01:59:06,868 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:59:06,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664523569] [2022-11-22 01:59:06,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664523569] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:59:06,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:59:06,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:59:06,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929484449] [2022-11-22 01:59:06,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:06,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:59:06,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:59:06,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:59:06,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:59:06,875 INFO L87 Difference]: Start difference. First operand 5198 states and 7107 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:59:07,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:07,851 INFO L93 Difference]: Finished difference Result 5204 states and 7112 transitions. [2022-11-22 01:59:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:59:07,852 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 317 [2022-11-22 01:59:07,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:07,876 INFO L225 Difference]: With dead ends: 5204 [2022-11-22 01:59:07,876 INFO L226 Difference]: Without dead ends: 5202 [2022-11-22 01:59:07,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:59:07,880 INFO L413 NwaCegarLoop]: 2313 mSDtfsCounter, 2238 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:07,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2240 Valid, 6926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:59:07,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5202 states. [2022-11-22 01:59:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5202 to 5202. [2022-11-22 01:59:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5202 states, 3662 states have (on average 1.300382304751502) internal successors, (4762), 3725 states have internal predecessors, (4762), 1176 states have call successors, (1176), 362 states have call predecessors, (1176), 361 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-22 01:59:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 7110 transitions. [2022-11-22 01:59:08,368 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 7110 transitions. Word has length 317 [2022-11-22 01:59:08,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:08,368 INFO L495 AbstractCegarLoop]: Abstraction has 5202 states and 7110 transitions. [2022-11-22 01:59:08,368 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:59:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 7110 transitions. [2022-11-22 01:59:08,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-11-22 01:59:08,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:08,382 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:08,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:08,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:08,603 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 01:59:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:08,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1070864057, now seen corresponding path program 1 times [2022-11-22 01:59:08,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:59:08,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759226085] [2022-11-22 01:59:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:08,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:08,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:59:08,606 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:59:08,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-22 01:59:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:10,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2449 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:59:10,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2022-11-22 01:59:10,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:59:10,363 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:59:10,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759226085] [2022-11-22 01:59:10,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759226085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:10,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:10,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:10,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741052771] [2022-11-22 01:59:10,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:10,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:10,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:59:10,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:10,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:10,365 INFO L87 Difference]: Start difference. First operand 5202 states and 7110 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 01:59:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:11,604 INFO L93 Difference]: Finished difference Result 14169 states and 19398 transitions. [2022-11-22 01:59:11,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:11,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 332 [2022-11-22 01:59:11,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:11,663 INFO L225 Difference]: With dead ends: 14169 [2022-11-22 01:59:11,664 INFO L226 Difference]: Without dead ends: 9010 [2022-11-22 01:59:11,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 330 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 01:59:11,688 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 2133 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:11,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 4964 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:59:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9010 states. [2022-11-22 01:59:12,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9010 to 8971. [2022-11-22 01:59:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8971 states, 6367 states have (on average 1.3018690120936076) internal successors, (8289), 6486 states have internal predecessors, (8289), 1989 states have call successors, (1989), 613 states have call predecessors, (1989), 612 states have return successors, (1985), 1941 states have call predecessors, (1985), 1985 states have call successors, (1985) [2022-11-22 01:59:12,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8971 states to 8971 states and 12263 transitions. [2022-11-22 01:59:12,627 INFO L78 Accepts]: Start accepts. Automaton has 8971 states and 12263 transitions. Word has length 332 [2022-11-22 01:59:12,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:12,628 INFO L495 AbstractCegarLoop]: Abstraction has 8971 states and 12263 transitions. [2022-11-22 01:59:12,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-22 01:59:12,628 INFO L276 IsEmpty]: Start isEmpty. Operand 8971 states and 12263 transitions. [2022-11-22 01:59:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-22 01:59:12,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:12,635 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:12,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:12,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:12,859 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 01:59:12,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:12,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1133651320, now seen corresponding path program 1 times [2022-11-22 01:59:12,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:59:12,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133862722] [2022-11-22 01:59:12,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:12,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:12,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:59:12,863 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:59:12,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-22 01:59:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:14,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 2312 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:59:14,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:16,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-11-22 01:59:16,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:59:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-11-22 01:59:17,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:59:17,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133862722] [2022-11-22 01:59:17,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133862722] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:59:17,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:59:17,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:59:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678757530] [2022-11-22 01:59:17,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:17,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:59:17,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:59:17,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:59:17,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:59:17,771 INFO L87 Difference]: Start difference. First operand 8971 states and 12263 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:59:19,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:19,422 INFO L93 Difference]: Finished difference Result 17385 states and 23825 transitions. [2022-11-22 01:59:19,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:59:19,423 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 322 [2022-11-22 01:59:19,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:19,518 INFO L225 Difference]: With dead ends: 17385 [2022-11-22 01:59:19,519 INFO L226 Difference]: Without dead ends: 17381 [2022-11-22 01:59:19,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:59:19,529 INFO L413 NwaCegarLoop]: 2989 mSDtfsCounter, 2214 mSDsluCounter, 8205 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 11194 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:19,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 11194 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:59:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17381 states. [2022-11-22 01:59:21,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17381 to 17273. [2022-11-22 01:59:21,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17273 states, 12240 states have (on average 1.303921568627451) internal successors, (15960), 12484 states have internal predecessors, (15960), 3852 states have call successors, (3852), 1185 states have call predecessors, (3852), 1178 states have return successors, (3874), 3733 states have call predecessors, (3874), 3844 states have call successors, (3874) [2022-11-22 01:59:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17273 states to 17273 states and 23686 transitions. [2022-11-22 01:59:21,396 INFO L78 Accepts]: Start accepts. Automaton has 17273 states and 23686 transitions. Word has length 322 [2022-11-22 01:59:21,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:21,397 INFO L495 AbstractCegarLoop]: Abstraction has 17273 states and 23686 transitions. [2022-11-22 01:59:21,397 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-22 01:59:21,397 INFO L276 IsEmpty]: Start isEmpty. Operand 17273 states and 23686 transitions. [2022-11-22 01:59:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-22 01:59:21,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:21,407 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 6, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:21,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:21,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:21,631 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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 01:59:21,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash 950294070, now seen corresponding path program 1 times [2022-11-22 01:59:21,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:59:21,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612563888] [2022-11-22 01:59:21,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:21,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:21,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:59:21,636 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:59:21,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-22 01:59:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:23,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:59:23,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 1769 trivial. 0 not checked. [2022-11-22 01:59:23,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:59:23,463 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:59:23,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612563888] [2022-11-22 01:59:23,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612563888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:23,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:23,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:59:23,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401623773] [2022-11-22 01:59:23,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:23,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:59:23,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:59:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:59:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:59:23,466 INFO L87 Difference]: Start difference. First operand 17273 states and 23686 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-22 01:59:25,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:25,707 INFO L93 Difference]: Finished difference Result 41785 states and 57457 transitions. [2022-11-22 01:59:25,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:59:25,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 337 [2022-11-22 01:59:25,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:25,848 INFO L225 Difference]: With dead ends: 41785 [2022-11-22 01:59:25,849 INFO L226 Difference]: Without dead ends: 24953 [2022-11-22 01:59:25,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 335 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 01:59:25,914 INFO L413 NwaCegarLoop]: 4269 mSDtfsCounter, 2031 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 6545 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:25,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 6545 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:59:25,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24953 states. [2022-11-22 01:59:28,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24953 to 24893. [2022-11-22 01:59:28,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24893 states, 17684 states have (on average 1.3071703234562315) internal successors, (23116), 18021 states have internal predecessors, (23116), 5532 states have call successors, (5532), 1683 states have call predecessors, (5532), 1674 states have return successors, (5569), 5376 states have call predecessors, (5569), 5524 states have call successors, (5569) [2022-11-22 01:59:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24893 states to 24893 states and 34217 transitions. [2022-11-22 01:59:28,222 INFO L78 Accepts]: Start accepts. Automaton has 24893 states and 34217 transitions. Word has length 337 [2022-11-22 01:59:28,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:28,223 INFO L495 AbstractCegarLoop]: Abstraction has 24893 states and 34217 transitions. [2022-11-22 01:59:28,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-22 01:59:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 24893 states and 34217 transitions. [2022-11-22 01:59:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-22 01:59:28,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:28,230 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:28,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-11-22 01:59:28,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:28,455 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 01:59:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:28,456 INFO L85 PathProgramCache]: Analyzing trace with hash -969652243, now seen corresponding path program 1 times [2022-11-22 01:59:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:59:28,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732776516] [2022-11-22 01:59:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:28,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:28,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:59:28,461 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:59:28,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-22 01:59:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:30,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 2319 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:59:30,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2022-11-22 01:59:32,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:59:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2022-11-22 01:59:33,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:59:33,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732776516] [2022-11-22 01:59:33,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732776516] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:59:33,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:59:33,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:59:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827251367] [2022-11-22 01:59:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:33,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:59:33,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:59:33,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:59:33,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:59:33,595 INFO L87 Difference]: Start difference. First operand 24893 states and 34217 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, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:59:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:36,273 INFO L93 Difference]: Finished difference Result 24899 states and 34222 transitions. [2022-11-22 01:59:36,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:59:36,273 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, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 327 [2022-11-22 01:59:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:36,378 INFO L225 Difference]: With dead ends: 24899 [2022-11-22 01:59:36,378 INFO L226 Difference]: Without dead ends: 24286 [2022-11-22 01:59:36,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:59:36,392 INFO L413 NwaCegarLoop]: 2314 mSDtfsCounter, 2238 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 6929 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:36,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 6929 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:59:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24286 states. [2022-11-22 01:59:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24286 to 24286. [2022-11-22 01:59:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24286 states, 17255 states have (on average 1.3082584758041147) internal successors, (22574), 17567 states have internal predecessors, (22574), 5408 states have call successors, (5408), 1628 states have call predecessors, (5408), 1620 states have return successors, (5449), 5268 states have call predecessors, (5449), 5404 states have call successors, (5449) [2022-11-22 01:59:39,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24286 states to 24286 states and 33431 transitions. [2022-11-22 01:59:39,268 INFO L78 Accepts]: Start accepts. Automaton has 24286 states and 33431 transitions. Word has length 327 [2022-11-22 01:59:39,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:39,269 INFO L495 AbstractCegarLoop]: Abstraction has 24286 states and 33431 transitions. [2022-11-22 01:59:39,269 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, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:59:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand 24286 states and 33431 transitions. [2022-11-22 01:59:39,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-22 01:59:39,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:39,280 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 20, 20, 20, 20, 20, 20, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:39,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:39,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:39,503 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:59:39,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:39,504 INFO L85 PathProgramCache]: Analyzing trace with hash -572106494, now seen corresponding path program 1 times [2022-11-22 01:59:39,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:59:39,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112217864] [2022-11-22 01:59:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:39,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:39,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:59:39,508 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:59:39,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-22 01:59:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:41,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2461 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:59:41,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2022-11-22 01:59:42,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:59:42,126 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:59:42,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112217864] [2022-11-22 01:59:42,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112217864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:59:42,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:59:42,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-22 01:59:42,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269332447] [2022-11-22 01:59:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:59:42,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:59:42,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:59:42,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:59:42,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:59:42,129 INFO L87 Difference]: Start difference. First operand 24286 states and 33431 transitions. Second operand has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-11-22 02:00:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:00,163 INFO L93 Difference]: Finished difference Result 63119 states and 86968 transitions. [2022-11-22 02:00:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 02:00:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 382 [2022-11-22 02:00:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:00,342 INFO L225 Difference]: With dead ends: 63119 [2022-11-22 02:00:00,342 INFO L226 Difference]: Without dead ends: 38312 [2022-11-22 02:00:00,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2022-11-22 02:00:00,434 INFO L413 NwaCegarLoop]: 4079 mSDtfsCounter, 5272 mSDsluCounter, 34321 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 1054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5290 SdHoareTripleChecker+Valid, 38400 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1054 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:00,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5290 Valid, 38400 Invalid, 3304 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1054 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2022-11-22 02:00:00,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38312 states. [2022-11-22 02:00:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38312 to 30512. [2022-11-22 02:00:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30512 states, 21677 states have (on average 1.3103750518983255) internal successors, (28405), 22055 states have internal predecessors, (28405), 6817 states have call successors, (6817), 2025 states have call predecessors, (6817), 2015 states have return successors, (6870), 6649 states have call predecessors, (6870), 6813 states have call successors, (6870) [2022-11-22 02:00:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30512 states to 30512 states and 42092 transitions. [2022-11-22 02:00:04,331 INFO L78 Accepts]: Start accepts. Automaton has 30512 states and 42092 transitions. Word has length 382 [2022-11-22 02:00:04,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:04,331 INFO L495 AbstractCegarLoop]: Abstraction has 30512 states and 42092 transitions. [2022-11-22 02:00:04,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-11-22 02:00:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 30512 states and 42092 transitions. [2022-11-22 02:00:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-22 02:00:04,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:04,343 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 20, 20, 20, 20, 20, 20, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:04,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-22 02:00:04,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:00:04,557 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 02:00:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash 852872131, now seen corresponding path program 1 times [2022-11-22 02:00:04,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:00:04,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224646005] [2022-11-22 02:00:04,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:04,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:00:04,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:00:04,561 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:00:04,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-22 02:00:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:06,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-22 02:00:06,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:07,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 598 proven. 0 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2022-11-22 02:00:07,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:00:07,014 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:00:07,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224646005] [2022-11-22 02:00:07,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224646005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:07,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:07,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:00:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792550127] [2022-11-22 02:00:07,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:07,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:00:07,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:00:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:00:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:00:07,017 INFO L87 Difference]: Start difference. First operand 30512 states and 42092 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-22 02:00:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:12,500 INFO L93 Difference]: Finished difference Result 66427 states and 92536 transitions. [2022-11-22 02:00:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 02:00:12,501 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) Word has length 412 [2022-11-22 02:00:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:12,680 INFO L225 Difference]: With dead ends: 66427 [2022-11-22 02:00:12,681 INFO L226 Difference]: Without dead ends: 36354 [2022-11-22 02:00:12,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-22 02:00:12,862 INFO L413 NwaCegarLoop]: 3273 mSDtfsCounter, 686 mSDsluCounter, 25358 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 28631 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:12,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 28631 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:00:12,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36354 states. [2022-11-22 02:00:16,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36354 to 30590. [2022-11-22 02:00:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30590 states, 21739 states have (on average 1.3094898569391415) internal successors, (28467), 22118 states have internal predecessors, (28467), 6817 states have call successors, (6817), 2025 states have call predecessors, (6817), 2031 states have return successors, (6893), 6664 states have call predecessors, (6893), 6813 states have call successors, (6893) [2022-11-22 02:00:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30590 states to 30590 states and 42177 transitions. [2022-11-22 02:00:16,926 INFO L78 Accepts]: Start accepts. Automaton has 30590 states and 42177 transitions. Word has length 412 [2022-11-22 02:00:16,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:16,927 INFO L495 AbstractCegarLoop]: Abstraction has 30590 states and 42177 transitions. [2022-11-22 02:00:16,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-22 02:00:16,927 INFO L276 IsEmpty]: Start isEmpty. Operand 30590 states and 42177 transitions. [2022-11-22 02:00:16,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2022-11-22 02:00:16,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:16,939 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 20, 20, 20, 20, 20, 20, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:16,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-22 02:00:17,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:00:17,155 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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 02:00:17,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:17,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1812936802, now seen corresponding path program 1 times [2022-11-22 02:00:17,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:00:17,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624719978] [2022-11-22 02:00:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:17,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:00:17,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:00:17,161 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:00:17,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4bdb8-d009-4e6e-9078-262ce0ae2061/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-22 02:00:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:19,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:00:19,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2435 backedges. 586 proven. 0 refuted. 0 times theorem prover too weak. 1849 trivial. 0 not checked. [2022-11-22 02:00:19,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:00:19,389 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:00:19,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624719978] [2022-11-22 02:00:19,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624719978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:19,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:19,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:00:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799577530] [2022-11-22 02:00:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:19,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:00:19,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:00:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:00:19,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:00:19,393 INFO L87 Difference]: Start difference. First operand 30590 states and 42177 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 02:00:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:27,822 INFO L93 Difference]: Finished difference Result 83465 states and 118581 transitions. [2022-11-22 02:00:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:00:27,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 452 [2022-11-22 02:00:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:28,035 INFO L225 Difference]: With dead ends: 83465 [2022-11-22 02:00:28,035 INFO L226 Difference]: Without dead ends: 53316 [2022-11-22 02:00:28,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:28,142 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 2190 mSDsluCounter, 5526 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 8443 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:28,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 8443 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]