./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-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- 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-6b4ec56 [2022-11-20 12:28:40,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:28:40,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:28:40,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:28:40,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:28:40,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:28:40,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:28:40,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:28:40,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:28:40,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:28:40,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:28:40,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:28:40,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:28:40,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:28:40,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:28:40,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:28:40,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:28:40,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:28:40,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:28:40,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:28:40,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:28:40,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:28:40,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:28:40,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:28:40,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:28:40,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:28:40,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:28:40,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:28:40,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:28:40,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:28:40,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:28:40,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:28:40,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:28:40,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:28:40,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:28:40,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:28:40,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:28:40,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:28:40,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:28:40,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:28:40,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:28:40,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:28:40,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:28:40,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:28:40,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:28:40,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:28:40,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:28:40,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:28:40,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:28:40,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:28:40,969 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:28:40,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:28:40,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:28:40,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:28:40,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:28:40,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:28:40,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:28:40,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:28:40,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:28:40,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:28:40,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:28:40,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:28:40,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:28:40,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:28:40,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:28:40,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:28:40,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:28:40,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:28:40,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:28:40,975 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:28:40,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:28:40,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:28:40,976 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2022-11-20 12:28:41,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:28:41,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:28:41,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:28:41,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:28:41,366 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:28:41,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-20 12:28:44,673 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:28:45,497 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:28:45,498 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-20 12:28:45,570 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data/e2481381c/f766d23170f747e2adf6c34f666d7d20/FLAG081660919 [2022-11-20 12:28:45,588 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data/e2481381c/f766d23170f747e2adf6c34f666d7d20 [2022-11-20 12:28:45,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:28:45,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:28:45,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:28:45,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:28:45,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:28:45,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:45" (1/1) ... [2022-11-20 12:28:45,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c04653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:45, skipping insertion in model container [2022-11-20 12:28:45,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:45" (1/1) ... [2022-11-20 12:28:45,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:28:45,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:28:47,078 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) 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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:675) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1469) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) 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:1867) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:202) 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) [2022-11-20 12:28:47,091 INFO L158 Benchmark]: Toolchain (without parser) took 1495.94ms. Allocated memory is still 153.1MB. Free memory was 103.4MB in the beginning and 71.5MB in the end (delta: 31.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-20 12:28:47,092 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:28:47,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1490.35ms. Allocated memory is still 153.1MB. Free memory was 103.2MB in the beginning and 71.5MB in the end (delta: 31.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-20 12:28:47,095 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1490.35ms. Allocated memory is still 153.1MB. Free memory was 103.2MB in the beginning and 71.5MB in the end (delta: 31.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- 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-6b4ec56 [2022-11-20 12:28:49,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:28:49,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:28:49,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:28:49,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:28:49,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:28:49,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:28:49,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:28:49,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:28:49,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:28:49,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:28:49,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:28:49,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:28:49,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:28:49,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:28:49,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:28:49,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:28:49,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:28:49,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:28:49,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:28:49,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:28:49,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:28:49,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:28:49,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:28:49,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:28:49,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:28:49,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:28:49,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:28:49,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:28:49,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:28:49,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:28:49,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:28:49,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:28:49,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:28:49,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:28:49,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:28:49,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:28:49,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:28:49,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:28:49,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:28:49,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:28:49,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:28:49,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:28:49,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:28:49,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:28:49,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:28:49,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:28:49,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:28:49,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:28:49,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:28:49,762 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:28:49,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:28:49,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:28:49,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:28:49,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:28:49,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:28:49,764 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:28:49,764 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:28:49,764 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:28:49,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:28:49,765 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:28:49,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:28:49,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:28:49,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:28:49,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:28:49,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:28:49,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:28:49,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:28:49,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:28:49,766 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:28:49,767 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:28:49,767 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:28:49,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:28:49,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:28:49,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:28:49,768 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2022-11-20 12:28:50,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:28:50,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:28:50,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:28:50,297 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:28:50,297 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:28:50,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-20 12:28:53,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:28:54,553 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:28:54,554 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-20 12:28:54,637 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data/03821c5f3/e7561742613f4f20adb045ec861da34c/FLAGcafc4aa6a [2022-11-20 12:28:54,663 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/data/03821c5f3/e7561742613f4f20adb045ec861da34c [2022-11-20 12:28:54,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:28:54,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:28:54,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:28:54,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:28:54,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:28:54,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:54" (1/1) ... [2022-11-20 12:28:54,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38567f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:54, skipping insertion in model container [2022-11-20 12:28:54,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:54" (1/1) ... [2022-11-20 12:28:54,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:28:54,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:28:58,796 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-11-20 12:28:58,801 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-11-20 12:28:58,802 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-11-20 12:28:58,818 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-11-20 12:28:58,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:28:58,895 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:28:59,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:28:59,550 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-11-20 12:28:59,550 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-11-20 12:28:59,551 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-11-20 12:28:59,552 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-11-20 12:28:59,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:28:59,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:29:00,737 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2022-11-20 12:29:00,738 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2022-11-20 12:29:00,738 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2022-11-20 12:29:00,739 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_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2022-11-20 12:29:00,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:29:01,018 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:29:01,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01 WrapperNode [2022-11-20 12:29:01,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:29:01,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:29:01,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:29:01,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:29:01,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,377 INFO L138 Inliner]: procedures = 509, calls = 2611, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 4929 [2022-11-20 12:29:01,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:29:01,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:29:01,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:29:01,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:29:01,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:29:01,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:29:01,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:29:01,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:29:01,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (1/1) ... [2022-11-20 12:29:01,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:29:01,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:01,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:29:01,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:29:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2022-11-20 12:29:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2022-11-20 12:29:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:29:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:29:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2022-11-20 12:29:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2022-11-20 12:29:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:29:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:29:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2022-11-20 12:29:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2022-11-20 12:29:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2022-11-20 12:29:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2022-11-20 12:29:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:29:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:29:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:29:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:29:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2022-11-20 12:29:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2022-11-20 12:29:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2022-11-20 12:29:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2022-11-20 12:29:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:29:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:29:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2022-11-20 12:29:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2022-11-20 12:29:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2022-11-20 12:29:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2022-11-20 12:29:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2022-11-20 12:29:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2022-11-20 12:29:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2022-11-20 12:29:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2022-11-20 12:29:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2022-11-20 12:29:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2022-11-20 12:29:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:29:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:29:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2022-11-20 12:29:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2022-11-20 12:29:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2022-11-20 12:29:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2022-11-20 12:29:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2022-11-20 12:29:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2022-11-20 12:29:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2022-11-20 12:29:01,943 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2022-11-20 12:29:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 12:29:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 12:29:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:29:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:29:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2022-11-20 12:29:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2022-11-20 12:29:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2022-11-20 12:29:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2022-11-20 12:29:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:29:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:29:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 12:29:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 12:29:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:29:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:29:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:29:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:29:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 12:29:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 12:29:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2022-11-20 12:29:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2022-11-20 12:29:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2022-11-20 12:29:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2022-11-20 12:29:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 12:29:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 12:29:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2022-11-20 12:29:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2022-11-20 12:29:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-20 12:29:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-20 12:29:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 12:29:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 12:29:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2022-11-20 12:29:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2022-11-20 12:29:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 12:29:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 12:29:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 12:29:01,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 12:29:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2022-11-20 12:29:01,951 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2022-11-20 12:29:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2022-11-20 12:29:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2022-11-20 12:29:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 12:29:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 12:29:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 12:29:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 12:29:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2022-11-20 12:29:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2022-11-20 12:29:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2022-11-20 12:29:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2022-11-20 12:29:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:29:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:29:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-20 12:29:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-20 12:29:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2022-11-20 12:29:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2022-11-20 12:29:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:29:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 12:29:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 12:29:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 12:29:01,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 12:29:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:29:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:29:01,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:29:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 12:29:01,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 12:29:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-20 12:29:01,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2022-11-20 12:29:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:29:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2022-11-20 12:29:01,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2022-11-20 12:29:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:29:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:29:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:29:01,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:29:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:29:01,959 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 12:29:01,959 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 12:29:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2022-11-20 12:29:01,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2022-11-20 12:29:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 12:29:01,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 12:29:01,960 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2022-11-20 12:29:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2022-11-20 12:29:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 12:29:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 12:29:01,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 12:29:01,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 12:29:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2022-11-20 12:29:01,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2022-11-20 12:29:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2022-11-20 12:29:01,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2022-11-20 12:29:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:29:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2022-11-20 12:29:01,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2022-11-20 12:29:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2022-11-20 12:29:01,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2022-11-20 12:29:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 12:29:01,964 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 12:29:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:29:01,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:29:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2022-11-20 12:29:01,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2022-11-20 12:29:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:29:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:29:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:29:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:29:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:29:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:29:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:29:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:29:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-20 12:29:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2022-11-20 12:29:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:29:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:29:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 12:29:01,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 12:29:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2022-11-20 12:29:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2022-11-20 12:29:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2022-11-20 12:29:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2022-11-20 12:29:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2022-11-20 12:29:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2022-11-20 12:29:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 12:29:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 12:29:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2022-11-20 12:29:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2022-11-20 12:29:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2022-11-20 12:29:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2022-11-20 12:29:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:29:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:29:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2022-11-20 12:29:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2022-11-20 12:29:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2022-11-20 12:29:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2022-11-20 12:29:01,971 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2022-11-20 12:29:01,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2022-11-20 12:29:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 12:29:01,972 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 12:29:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:29:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2022-11-20 12:29:01,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2022-11-20 12:29:01,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-20 12:29:01,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2022-11-20 12:29:01,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:29:01,973 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 12:29:01,973 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 12:29:01,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:29:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:29:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:29:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2022-11-20 12:29:01,974 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2022-11-20 12:29:01,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:29:01,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:29:01,975 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 12:29:01,975 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 12:29:01,975 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2022-11-20 12:29:01,975 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2022-11-20 12:29:01,975 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2022-11-20 12:29:01,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2022-11-20 12:29:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2022-11-20 12:29:01,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2022-11-20 12:29:01,976 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2022-11-20 12:29:01,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2022-11-20 12:29:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 12:29:01,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 12:29:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-20 12:29:01,977 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-20 12:29:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2022-11-20 12:29:01,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2022-11-20 12:29:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2022-11-20 12:29:01,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2022-11-20 12:29:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 12:29:01,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 12:29:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 12:29:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 12:29:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:29:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:29:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2022-11-20 12:29:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2022-11-20 12:29:01,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:29:01,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:29:01,980 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2022-11-20 12:29:01,980 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2022-11-20 12:29:01,980 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:29:01,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:29:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2022-11-20 12:29:01,981 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2022-11-20 12:29:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:29:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:29:01,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:29:01,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:29:01,982 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-20 12:29:01,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-20 12:29:01,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:29:01,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:29:01,983 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2022-11-20 12:29:01,983 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2022-11-20 12:29:01,983 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2022-11-20 12:29:01,984 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2022-11-20 12:29:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2022-11-20 12:29:01,984 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2022-11-20 12:29:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2022-11-20 12:29:01,984 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2022-11-20 12:29:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-20 12:29:01,985 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-20 12:29:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 12:29:01,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 12:29:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2022-11-20 12:29:01,986 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2022-11-20 12:29:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2022-11-20 12:29:01,986 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2022-11-20 12:29:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 12:29:01,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 12:29:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2022-11-20 12:29:01,987 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2022-11-20 12:29:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2022-11-20 12:29:01,987 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2022-11-20 12:29:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-20 12:29:01,988 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-20 12:29:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 12:29:01,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 12:29:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-20 12:29:01,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-20 12:29:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 12:29:01,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 12:29:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-20 12:29:01,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-20 12:29:03,148 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:29:03,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:29:09,521 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:29:28,560 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1246#1.base, #t~mem1246#1.offset := read~$Pointer$(~sc#1.base, ~bvadd64(141bv64, ~sc#1.offset), 8bv64); [2022-11-20 12:29:28,561 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881: SUMMARY for call lmc_trace(#t~mem1246#1.base, #t~mem1246#1.offset, 129bv64, 0bv64); srcloc: null [2022-11-20 12:29:28,561 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881-1: havoc #t~mem1246#1.base, #t~mem1246#1.offset; [2022-11-20 12:30:07,285 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 12:30:07,511 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:30:07,543 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:30:07,544 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:30:07,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:30:07 BoogieIcfgContainer [2022-11-20 12:30:07,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:30:07,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:30:07,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:30:07,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:30:07,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:28:54" (1/3) ... [2022-11-20 12:30:07,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f9ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:30:07, skipping insertion in model container [2022-11-20 12:30:07,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:29:01" (2/3) ... [2022-11-20 12:30:07,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f9ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:30:07, skipping insertion in model container [2022-11-20 12:30:07,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:30:07" (3/3) ... [2022-11-20 12:30:07,561 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2022-11-20 12:30:07,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:30:07,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 12:30:07,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:30:07,721 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=PETRI_NET, 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;@1fa056f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:30:07,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 12:30:07,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 2513 states, 1620 states have (on average 1.287037037037037) internal successors, (2085), 1690 states have internal predecessors, (2085), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) [2022-11-20 12:30:07,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:30:07,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:07,786 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:07,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:30:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:07,794 INFO L85 PathProgramCache]: Analyzing trace with hash 328180048, now seen corresponding path program 1 times [2022-11-20 12:30:07,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:30:07,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145600171] [2022-11-20 12:30:07,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:07,825 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 [2022-11-20 12:30:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:30:07,835 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:30:07,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:09,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:30:09,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 12:30:09,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:09,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:30:09,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145600171] [2022-11-20 12:30:09,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145600171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:09,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:09,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:30:09,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44670607] [2022-11-20 12:30:09,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:09,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:30:09,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:09,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:09,975 INFO L87 Difference]: Start difference. First operand has 2513 states, 1620 states have (on average 1.287037037037037) internal successors, (2085), 1690 states have internal predecessors, (2085), 772 states have call successors, (772), 119 states have call predecessors, (772), 118 states have return successors, (765), 722 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 12:30:11,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:11,030 INFO L93 Difference]: Finished difference Result 7357 states and 10736 transitions. [2022-11-20 12:30:11,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:11,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 195 [2022-11-20 12:30:11,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:11,119 INFO L225 Difference]: With dead ends: 7357 [2022-11-20 12:30:11,120 INFO L226 Difference]: Without dead ends: 4868 [2022-11-20 12:30:11,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:11,160 INFO L413 NwaCegarLoop]: 4339 mSDtfsCounter, 3442 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 7893 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:11,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 7893 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:30:11,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2022-11-20 12:30:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4864. [2022-11-20 12:30:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4864 states, 3149 states have (on average 1.28612257859638) internal successors, (4050), 3288 states have internal predecessors, (4050), 1480 states have call successors, (1480), 233 states have call predecessors, (1480), 232 states have return successors, (1476), 1390 states have call predecessors, (1476), 1476 states have call successors, (1476) [2022-11-20 12:30:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4864 states to 4864 states and 7006 transitions. [2022-11-20 12:30:11,690 INFO L78 Accepts]: Start accepts. Automaton has 4864 states and 7006 transitions. Word has length 195 [2022-11-20 12:30:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:11,693 INFO L495 AbstractCegarLoop]: Abstraction has 4864 states and 7006 transitions. [2022-11-20 12:30:11,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 12:30:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 4864 states and 7006 transitions. [2022-11-20 12:30:11,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-20 12:30:11,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:11,714 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:11,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:11,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:11,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:30:11,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:11,942 INFO L85 PathProgramCache]: Analyzing trace with hash 846081795, now seen corresponding path program 1 times [2022-11-20 12:30:11,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:30:11,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242557528] [2022-11-20 12:30:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:11,948 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 [2022-11-20 12:30:11,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:30:11,950 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:30:11,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:13,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:30:13,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 12:30:13,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:13,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:30:13,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242557528] [2022-11-20 12:30:13,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242557528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:13,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:13,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:30:13,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004369087] [2022-11-20 12:30:13,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:13,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:13,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:30:13,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:13,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:13,929 INFO L87 Difference]: Start difference. First operand 4864 states and 7006 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:30:14,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:14,990 INFO L93 Difference]: Finished difference Result 14146 states and 20400 transitions. [2022-11-20 12:30:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:14,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 206 [2022-11-20 12:30:14,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:15,078 INFO L225 Difference]: With dead ends: 14146 [2022-11-20 12:30:15,078 INFO L226 Difference]: Without dead ends: 9317 [2022-11-20 12:30:15,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:15,115 INFO L413 NwaCegarLoop]: 4339 mSDtfsCounter, 3267 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 7919 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:15,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 7919 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:30:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9317 states. [2022-11-20 12:30:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9317 to 9287. [2022-11-20 12:30:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9287 states, 5988 states have (on average 1.2844021376085504) internal successors, (7691), 6260 states have internal predecessors, (7691), 2843 states have call successors, (2843), 454 states have call predecessors, (2843), 453 states have return successors, (2863), 2660 states have call predecessors, (2863), 2839 states have call successors, (2863) [2022-11-20 12:30:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9287 states to 9287 states and 13397 transitions. [2022-11-20 12:30:15,970 INFO L78 Accepts]: Start accepts. Automaton has 9287 states and 13397 transitions. Word has length 206 [2022-11-20 12:30:15,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:15,971 INFO L495 AbstractCegarLoop]: Abstraction has 9287 states and 13397 transitions. [2022-11-20 12:30:15,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:30:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9287 states and 13397 transitions. [2022-11-20 12:30:15,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-20 12:30:15,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:15,982 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:16,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:16,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:16,195 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:30:16,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:16,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1313302745, now seen corresponding path program 1 times [2022-11-20 12:30:16,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:30:16,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192637116] [2022-11-20 12:30:16,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:16,199 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 [2022-11-20 12:30:16,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:30:16,207 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:30:16,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:17,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1395 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:30:17,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 12:30:18,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:18,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:30:18,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192637116] [2022-11-20 12:30:18,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192637116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:18,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:18,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:30:18,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757606951] [2022-11-20 12:30:18,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:18,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:18,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:30:18,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:18,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:18,161 INFO L87 Difference]: Start difference. First operand 9287 states and 13397 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:30:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:20,037 INFO L93 Difference]: Finished difference Result 27465 states and 39627 transitions. [2022-11-20 12:30:20,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:20,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 212 [2022-11-20 12:30:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:20,261 INFO L225 Difference]: With dead ends: 27465 [2022-11-20 12:30:20,262 INFO L226 Difference]: Without dead ends: 18213 [2022-11-20 12:30:20,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:20,336 INFO L413 NwaCegarLoop]: 4439 mSDtfsCounter, 3480 mSDsluCounter, 3512 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3480 SdHoareTripleChecker+Valid, 7951 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:20,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3480 Valid, 7951 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:30:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18213 states. [2022-11-20 12:30:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18213 to 18163. [2022-11-20 12:30:21,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18163 states, 11710 states have (on average 1.2853116994022202) internal successors, (15051), 12254 states have internal predecessors, (15051), 5553 states have call successors, (5553), 902 states have call predecessors, (5553), 897 states have return successors, (5609), 5178 states have call predecessors, (5609), 5549 states have call successors, (5609) [2022-11-20 12:30:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18163 states to 18163 states and 26213 transitions. [2022-11-20 12:30:22,085 INFO L78 Accepts]: Start accepts. Automaton has 18163 states and 26213 transitions. Word has length 212 [2022-11-20 12:30:22,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:22,087 INFO L495 AbstractCegarLoop]: Abstraction has 18163 states and 26213 transitions. [2022-11-20 12:30:22,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:30:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 18163 states and 26213 transitions. [2022-11-20 12:30:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-20 12:30:22,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:22,099 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:22,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:22,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:22,316 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:30:22,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:22,316 INFO L85 PathProgramCache]: Analyzing trace with hash 304413157, now seen corresponding path program 1 times [2022-11-20 12:30:22,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:30:22,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501228478] [2022-11-20 12:30:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:22,319 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 [2022-11-20 12:30:22,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:30:22,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:30:22,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:23,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:30:23,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 12:30:23,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:23,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:30:23,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501228478] [2022-11-20 12:30:23,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501228478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:23,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:23,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:30:23,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434245993] [2022-11-20 12:30:23,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:23,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:23,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:30:23,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:23,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:23,968 INFO L87 Difference]: Start difference. First operand 18163 states and 26213 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:30:26,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:26,582 INFO L93 Difference]: Finished difference Result 51243 states and 73817 transitions. [2022-11-20 12:30:26,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:26,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 209 [2022-11-20 12:30:26,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:26,868 INFO L225 Difference]: With dead ends: 51243 [2022-11-20 12:30:26,868 INFO L226 Difference]: Without dead ends: 33115 [2022-11-20 12:30:27,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:27,003 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 2960 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2960 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:27,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2960 Valid, 7804 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 12:30:27,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33115 states. [2022-11-20 12:30:30,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33115 to 33041. [2022-11-20 12:30:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33041 states, 21374 states have (on average 1.2828202489005334) internal successors, (27419), 22392 states have internal predecessors, (27419), 9919 states have call successors, (9919), 1754 states have call predecessors, (9919), 1745 states have return successors, (10193), 9174 states have call predecessors, (10193), 9915 states have call successors, (10193) [2022-11-20 12:30:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33041 states to 33041 states and 47531 transitions. [2022-11-20 12:30:30,309 INFO L78 Accepts]: Start accepts. Automaton has 33041 states and 47531 transitions. Word has length 209 [2022-11-20 12:30:30,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:30,310 INFO L495 AbstractCegarLoop]: Abstraction has 33041 states and 47531 transitions. [2022-11-20 12:30:30,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:30:30,311 INFO L276 IsEmpty]: Start isEmpty. Operand 33041 states and 47531 transitions. [2022-11-20 12:30:30,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-20 12:30:30,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:30,319 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:30:30,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:30,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:30,545 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:30:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:30,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1798709105, now seen corresponding path program 1 times [2022-11-20 12:30:30,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:30:30,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970599378] [2022-11-20 12:30:30,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:30,547 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 [2022-11-20 12:30:30,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:30:30,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:30:30,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:32,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:30:32,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 12:30:32,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:32,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:30:32,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970599378] [2022-11-20 12:30:32,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970599378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:32,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:32,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:30:32,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418850035] [2022-11-20 12:30:32,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:32,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:32,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:30:32,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:32,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:32,360 INFO L87 Difference]: Start difference. First operand 33041 states and 47531 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:30:35,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:35,792 INFO L93 Difference]: Finished difference Result 70867 states and 101908 transitions. [2022-11-20 12:30:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:35,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 212 [2022-11-20 12:30:35,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:36,083 INFO L225 Difference]: With dead ends: 70867 [2022-11-20 12:30:36,084 INFO L226 Difference]: Without dead ends: 37861 [2022-11-20 12:30:36,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:36,262 INFO L413 NwaCegarLoop]: 5145 mSDtfsCounter, 3214 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3214 SdHoareTripleChecker+Valid, 8674 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:36,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3214 Valid, 8674 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 12:30:36,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37861 states. [2022-11-20 12:30:39,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37861 to 37821. [2022-11-20 12:30:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37821 states, 24479 states have (on average 1.2828138404346583) internal successors, (31402), 25713 states have internal predecessors, (31402), 11282 states have call successors, (11282), 2066 states have call predecessors, (11282), 2057 states have return successors, (11502), 10351 states have call predecessors, (11502), 11278 states have call successors, (11502) [2022-11-20 12:30:39,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37821 states to 37821 states and 54186 transitions. [2022-11-20 12:30:39,303 INFO L78 Accepts]: Start accepts. Automaton has 37821 states and 54186 transitions. Word has length 212 [2022-11-20 12:30:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:39,304 INFO L495 AbstractCegarLoop]: Abstraction has 37821 states and 54186 transitions. [2022-11-20 12:30:39,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:30:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 37821 states and 54186 transitions. [2022-11-20 12:30:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-20 12:30:39,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:39,318 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 15, 15, 15, 15, 15, 15, 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] [2022-11-20 12:30:39,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:39,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:39,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:30:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1598018512, now seen corresponding path program 1 times [2022-11-20 12:30:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:30:39,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919063581] [2022-11-20 12:30:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:39,535 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 [2022-11-20 12:30:39,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:30:39,537 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:30:39,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:40,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:30:40,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 12:30:41,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:41,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:30:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919063581] [2022-11-20 12:30:41,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919063581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:41,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:41,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:30:41,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166860491] [2022-11-20 12:30:41,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:41,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:30:41,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:30:41,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:30:41,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:41,148 INFO L87 Difference]: Start difference. First operand 37821 states and 54186 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 12:30:45,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:30:45,356 INFO L93 Difference]: Finished difference Result 102126 states and 146526 transitions. [2022-11-20 12:30:45,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:30:45,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 239 [2022-11-20 12:30:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:30:46,106 INFO L225 Difference]: With dead ends: 102126 [2022-11-20 12:30:46,106 INFO L226 Difference]: Without dead ends: 64340 [2022-11-20 12:30:46,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:30:46,315 INFO L413 NwaCegarLoop]: 4498 mSDtfsCounter, 3514 mSDsluCounter, 3580 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 8078 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:30:46,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 8078 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:30:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64340 states. [2022-11-20 12:30:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64340 to 64282. [2022-11-20 12:30:50,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64282 states, 41565 states have (on average 1.282713821725009) internal successors, (53316), 43652 states have internal predecessors, (53316), 19262 states have call successors, (19262), 3473 states have call predecessors, (19262), 3452 states have return successors, (19694), 17682 states have call predecessors, (19694), 19258 states have call successors, (19694) [2022-11-20 12:30:51,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64282 states to 64282 states and 92272 transitions. [2022-11-20 12:30:51,209 INFO L78 Accepts]: Start accepts. Automaton has 64282 states and 92272 transitions. Word has length 239 [2022-11-20 12:30:51,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:30:51,210 INFO L495 AbstractCegarLoop]: Abstraction has 64282 states and 92272 transitions. [2022-11-20 12:30:51,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 12:30:51,211 INFO L276 IsEmpty]: Start isEmpty. Operand 64282 states and 92272 transitions. [2022-11-20 12:30:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-20 12:30:51,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:30:51,229 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 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] [2022-11-20 12:30:51,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:51,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:51,453 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:30:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:51,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1095146155, now seen corresponding path program 1 times [2022-11-20 12:30:51,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:30:51,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [224138019] [2022-11-20 12:30:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:51,455 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 [2022-11-20 12:30:51,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:30:51,457 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:30:51,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51ceedf-74a0-49e5-ae0f-2a38385c7e63/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:30:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:52,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:30:52,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:30:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2022-11-20 12:30:55,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:30:55,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:30:55,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [224138019] [2022-11-20 12:30:55,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [224138019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:55,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:55,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:30:55,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369079360] [2022-11-20 12:30:55,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:55,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:30:55,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:30:55,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:30:55,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:30:55,481 INFO L87 Difference]: Start difference. First operand 64282 states and 92272 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)