./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- 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 10:54:16,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:54:16,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:54:16,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:54:16,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:54:16,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:54:16,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:54:16,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:54:16,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:54:16,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:54:16,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:54:16,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:54:16,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:54:16,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:54:16,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:54:16,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:54:16,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:54:16,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:54:16,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:54:16,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:54:16,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:54:16,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:54:16,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:54:16,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:54:16,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:54:16,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:54:16,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:54:16,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:54:16,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:54:16,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:54:16,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:54:16,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:54:16,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:54:16,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:54:16,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:54:16,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:54:16,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:54:16,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:54:16,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:54:16,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:54:16,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:54:16,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:54:16,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:54:16,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:54:16,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:54:16,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:54:16,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:54:16,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:54:16,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:54:16,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:54:16,988 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:54:16,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:54:16,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:54:16,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:54:16,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:54:16,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:54:16,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:54:16,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:54:16,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:54:16,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:54:16,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:54:16,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:54:16,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:54:16,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:54:16,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:54:16,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:54:16,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:54:16,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:54:16,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:54:16,994 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:54:16,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:54:16,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:54:16,995 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2022-11-20 10:54:17,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:54:17,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:54:17,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:54:17,381 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:54:17,382 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:54:17,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:54:20,343 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:54:21,259 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:54:21,260 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:54:21,353 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data/adefe4c71/e36d79d6c80c4605bdb19805bcbe2e9a/FLAG725d2d14f [2022-11-20 10:54:21,375 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data/adefe4c71/e36d79d6c80c4605bdb19805bcbe2e9a [2022-11-20 10:54:21,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:54:21,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:54:21,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:54:21,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:54:21,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:54:21,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:21" (1/1) ... [2022-11-20 10:54:21,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1434e10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:21, skipping insertion in model container [2022-11-20 10:54:21,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:21" (1/1) ... [2022-11-20 10:54:21,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:54:21,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:54:22,612 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.base.CHandler.visit(CHandler.java:727) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) 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 10:54:22,623 INFO L158 Benchmark]: Toolchain (without parser) took 1236.66ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 79.6MB in the beginning and 93.1MB in the end (delta: -13.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2022-11-20 10:54:22,623 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:54:22,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1231.20ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 79.6MB in the beginning and 93.1MB in the end (delta: -13.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2022-11-20 10:54:22,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1231.20ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 79.6MB in the beginning and 93.1MB in the end (delta: -13.5MB). Peak memory consumption was 39.6MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb --- 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 10:54:25,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:54:25,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:54:25,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:54:25,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:54:25,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:54:25,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:54:25,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:54:25,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:54:25,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:54:25,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:54:25,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:54:25,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:54:25,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:54:25,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:54:25,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:54:25,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:54:25,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:54:25,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:54:25,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:54:25,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:54:25,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:54:25,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:54:25,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:54:25,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:54:25,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:54:25,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:54:25,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:54:25,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:54:25,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:54:25,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:54:25,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:54:25,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:54:25,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:54:25,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:54:25,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:54:25,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:54:25,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:54:25,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:54:25,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:54:25,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:54:25,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:54:25,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:54:25,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:54:25,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:54:25,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:54:25,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:54:25,653 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:54:25,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:54:25,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:54:25,655 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:54:25,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:54:25,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:54:25,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:54:25,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:54:25,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:54:25,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:54:25,658 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:54:25,658 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:54:25,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:54:25,659 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:54:25,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:54:25,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:54:25,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:54:25,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:54:25,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:54:25,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:54:25,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:54:25,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:54:25,662 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:54:25,662 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:54:25,663 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:54:25,663 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:54:25,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:54:25,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:54:25,664 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5b0d1bb6abf00f856e27261b150a3be237701039761971659caf0639a1797fb [2022-11-20 10:54:26,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:54:26,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:54:26,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:54:26,185 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:54:26,186 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:54:26,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:54:29,513 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:54:30,368 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:54:30,369 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:54:30,440 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data/76ed4f99f/825ba4cb37dc409da5e5a7e327a75056/FLAG645a5f094 [2022-11-20 10:54:30,471 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/data/76ed4f99f/825ba4cb37dc409da5e5a7e327a75056 [2022-11-20 10:54:30,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:54:30,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:54:30,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:54:30,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:54:30,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:54:30,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:30" (1/1) ... [2022-11-20 10:54:30,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c5c84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:30, skipping insertion in model container [2022-11-20 10:54:30,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:54:30" (1/1) ... [2022-11-20 10:54:30,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:54:30,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:54:34,791 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2022-11-20 10:54:34,796 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2022-11-20 10:54:34,797 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2022-11-20 10:54:34,798 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2022-11-20 10:54:34,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:54:34,899 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:54:34,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:54:35,467 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2022-11-20 10:54:35,468 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2022-11-20 10:54:35,469 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2022-11-20 10:54:35,469 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2022-11-20 10:54:35,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:54:35,568 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:54:36,246 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[380944,380957] [2022-11-20 10:54:36,247 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381110,381123] [2022-11-20 10:54:36,247 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381274,381287] [2022-11-20 10:54:36,248 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_2c08e80d-7f3d-47b9-8bad-577c123c5488/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i[381439,381452] [2022-11-20 10:54:36,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:54:36,744 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:54:36,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36 WrapperNode [2022-11-20 10:54:36,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:54:36,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:54:36,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:54:36,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:54:36,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:36,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,220 INFO L138 Inliner]: procedures = 504, calls = 2663, calls flagged for inlining = 292, calls inlined = 259, statements flattened = 5654 [2022-11-20 10:54:37,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:54:37,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:54:37,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:54:37,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:54:37,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,586 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:54:37,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:54:37,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:54:37,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:54:37,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (1/1) ... [2022-11-20 10:54:37,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:54:37,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:54:37,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:54:37,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:54:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 10:54:37,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 10:54:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:54:37,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:54:37,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 10:54:37,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 10:54:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 10:54:37,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 10:54:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:54:37,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:54:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 10:54:37,756 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 10:54:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2022-11-20 10:54:37,757 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2022-11-20 10:54:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 10:54:37,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 10:54:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:54:37,758 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:54:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 10:54:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 10:54:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:54:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:54:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 10:54:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 10:54:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2022-11-20 10:54:37,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2022-11-20 10:54:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-20 10:54:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-20 10:54:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 10:54:37,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 10:54:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 10:54:37,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 10:54:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2022-11-20 10:54:37,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2022-11-20 10:54:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 10:54:37,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 10:54:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 10:54:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 10:54:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:54:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:54:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 10:54:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 10:54:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:54:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:54:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:54:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:54:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 10:54:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 10:54:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 10:54:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 10:54:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:54:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:54:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:54:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:54:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 10:54:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 10:54:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2022-11-20 10:54:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2022-11-20 10:54:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:54:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:54:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 10:54:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 10:54:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-20 10:54:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-20 10:54:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2022-11-20 10:54:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2022-11-20 10:54:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:54:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:54:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 10:54:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 10:54:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2022-11-20 10:54:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2022-11-20 10:54:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:54:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:54:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 10:54:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 10:54:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 10:54:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 10:54:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2022-11-20 10:54:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2022-11-20 10:54:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-20 10:54:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-20 10:54:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 10:54:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 10:54:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 10:54:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 10:54:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2022-11-20 10:54:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2022-11-20 10:54:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2022-11-20 10:54:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2022-11-20 10:54:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:54:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 10:54:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 10:54:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 10:54:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 10:54:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 10:54:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 10:54:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-20 10:54:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-20 10:54:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:54:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-20 10:54:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-20 10:54:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 10:54:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 10:54:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:54:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:54:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:54:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:54:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-20 10:54:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-20 10:54:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:54:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:54:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-20 10:54:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-20 10:54:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2022-11-20 10:54:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2022-11-20 10:54:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2022-11-20 10:54:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2022-11-20 10:54:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 10:54:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 10:54:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:54:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:54:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-20 10:54:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-20 10:54:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:54:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:54:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 10:54:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 10:54:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-20 10:54:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-20 10:54:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:54:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:54:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2022-11-20 10:54:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2022-11-20 10:54:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2022-11-20 10:54:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2022-11-20 10:54:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 10:54:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 10:54:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:54:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:54:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-20 10:54:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-20 10:54:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:54:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:54:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:54:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:54:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:54:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:54:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:54:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:54:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:54:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 10:54:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2022-11-20 10:54:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2022-11-20 10:54:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 10:54:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 10:54:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:54:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:54:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2022-11-20 10:54:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2022-11-20 10:54:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2022-11-20 10:54:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2022-11-20 10:54:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 10:54:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 10:54:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2022-11-20 10:54:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2022-11-20 10:54:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-20 10:54:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-20 10:54:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 10:54:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 10:54:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2022-11-20 10:54:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2022-11-20 10:54:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2022-11-20 10:54:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_task_lock_of_rhine_private [2022-11-20 10:54:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 10:54:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 10:54:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:54:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:54:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:54:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 10:54:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 10:54:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:54:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2022-11-20 10:54:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2022-11-20 10:54:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2022-11-20 10:54:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2022-11-20 10:54:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:54:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:54:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:54:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:54:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:54:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2022-11-20 10:54:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2022-11-20 10:54:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2022-11-20 10:54:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2022-11-20 10:54:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-20 10:54:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-20 10:54:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2022-11-20 10:54:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2022-11-20 10:54:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2022-11-20 10:54:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2022-11-20 10:54:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 10:54:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 10:54:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:54:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:54:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 10:54:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 10:54:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 10:54:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 10:54:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:54:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:54:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 10:54:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 10:54:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 10:54:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 10:54:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 10:54:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 10:54:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:54:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:54:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2022-11-20 10:54:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2022-11-20 10:54:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:54:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:54:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2022-11-20 10:54:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2022-11-20 10:54:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:54:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:54:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2022-11-20 10:54:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2022-11-20 10:54:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 10:54:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 10:54:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:54:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-20 10:54:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-20 10:54:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:54:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:54:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-20 10:54:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-20 10:54:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 10:54:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 10:54:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_task_lock_of_rhine_private [2022-11-20 10:54:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_task_lock_of_rhine_private [2022-11-20 10:54:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2022-11-20 10:54:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2022-11-20 10:54:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2022-11-20 10:54:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2022-11-20 10:54:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2022-11-20 10:54:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2022-11-20 10:54:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2022-11-20 10:54:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2022-11-20 10:54:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-20 10:54:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-20 10:54:37,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 10:54:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 10:54:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 10:54:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 10:54:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 10:54:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 10:54:37,833 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2022-11-20 10:54:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2022-11-20 10:54:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2022-11-20 10:54:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2022-11-20 10:54:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 10:54:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 10:54:37,834 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 10:54:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 10:54:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2022-11-20 10:54:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2022-11-20 10:54:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2022-11-20 10:54:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2022-11-20 10:54:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 10:54:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 10:54:39,169 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:54:39,179 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:54:40,010 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:06:46,717 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:06:46,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:06:46,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:06:46,857 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 11:06:46,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:46 BoogieIcfgContainer [2022-11-20 11:06:46,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:06:46,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:06:46,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:06:46,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:06:46,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:54:30" (1/3) ... [2022-11-20 11:06:46,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2056d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:46, skipping insertion in model container [2022-11-20 11:06:46,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:54:36" (2/3) ... [2022-11-20 11:06:46,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2056d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:46, skipping insertion in model container [2022-11-20 11:06:46,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:46" (3/3) ... [2022-11-20 11:06:46,874 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 11:06:46,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:06:46,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:06:47,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:06:47,008 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;@506186f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:06:47,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:06:47,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 2203 states, 1496 states have (on average 1.2740641711229947) internal successors, (1906), 1545 states have internal predecessors, (1906), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) [2022-11-20 11:06:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 11:06:47,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:47,051 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:47,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:06:47,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:47,059 INFO L85 PathProgramCache]: Analyzing trace with hash 784848318, now seen corresponding path program 1 times [2022-11-20 11:06:47,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:06:47,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526035204] [2022-11-20 11:06:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:47,087 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 11:06:47,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:06:47,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:06:47,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:06:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:06:52,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 4338 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:06:52,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:06:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 11:06:52,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:06:52,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:06:52,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526035204] [2022-11-20 11:06:52,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526035204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:06:52,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:06:52,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:06:52,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918159435] [2022-11-20 11:06:52,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:06:52,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:06:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:06:53,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:06:53,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:06:53,026 INFO L87 Difference]: Start difference. First operand has 2203 states, 1496 states have (on average 1.2740641711229947) internal successors, (1906), 1545 states have internal predecessors, (1906), 582 states have call successors, (582), 124 states have call predecessors, (582), 123 states have return successors, (573), 560 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:06:55,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:06:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:06:56,556 INFO L93 Difference]: Finished difference Result 6386 states and 9048 transitions. [2022-11-20 11:06:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:06:56,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 184 [2022-11-20 11:06:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:06:56,599 INFO L225 Difference]: With dead ends: 6386 [2022-11-20 11:06:56,599 INFO L226 Difference]: Without dead ends: 4203 [2022-11-20 11:06:56,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 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 11:06:56,619 INFO L413 NwaCegarLoop]: 3541 mSDtfsCounter, 2854 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2854 SdHoareTripleChecker+Valid, 6474 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:06:56,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2854 Valid, 6474 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 11:06:56,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4203 states. [2022-11-20 11:06:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4203 to 4199. [2022-11-20 11:06:56,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4199 states, 2850 states have (on average 1.2578947368421052) internal successors, (3585), 2945 states have internal predecessors, (3585), 1104 states have call successors, (1104), 243 states have call predecessors, (1104), 242 states have return successors, (1100), 1074 states have call predecessors, (1100), 1100 states have call successors, (1100) [2022-11-20 11:06:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4199 states to 4199 states and 5789 transitions. [2022-11-20 11:06:57,020 INFO L78 Accepts]: Start accepts. Automaton has 4199 states and 5789 transitions. Word has length 184 [2022-11-20 11:06:57,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:06:57,023 INFO L495 AbstractCegarLoop]: Abstraction has 4199 states and 5789 transitions. [2022-11-20 11:06:57,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:06:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4199 states and 5789 transitions. [2022-11-20 11:06:57,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-20 11:06:57,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:06:57,042 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:57,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:06:57,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:06:57,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:06:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:06:57,256 INFO L85 PathProgramCache]: Analyzing trace with hash -764337325, now seen corresponding path program 1 times [2022-11-20 11:06:57,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:06:57,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187304716] [2022-11-20 11:06:57,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:06:57,261 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 11:06:57,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:06:57,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:06:57,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 4392 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:02,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 11:07:02,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:02,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:02,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187304716] [2022-11-20 11:07:02,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187304716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:02,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:02,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:02,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130667600] [2022-11-20 11:07:02,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:02,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:02,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:02,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:02,861 INFO L87 Difference]: Start difference. First operand 4199 states and 5789 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:07:05,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:07,613 INFO L93 Difference]: Finished difference Result 12011 states and 16553 transitions. [2022-11-20 11:07:07,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:07,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 186 [2022-11-20 11:07:07,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:07,674 INFO L225 Difference]: With dead ends: 12011 [2022-11-20 11:07:07,675 INFO L226 Difference]: Without dead ends: 7845 [2022-11-20 11:07:07,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 184 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 11:07:07,697 INFO L413 NwaCegarLoop]: 3691 mSDtfsCounter, 2526 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 6572 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:07,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2526 Valid, 6572 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-20 11:07:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2022-11-20 11:07:08,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 7824. [2022-11-20 11:07:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7824 states, 5287 states have (on average 1.251749574427842) internal successors, (6618), 5461 states have internal predecessors, (6618), 2059 states have call successors, (2059), 476 states have call predecessors, (2059), 475 states have return successors, (2055), 2004 states have call predecessors, (2055), 2055 states have call successors, (2055) [2022-11-20 11:07:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7824 states to 7824 states and 10732 transitions. [2022-11-20 11:07:08,267 INFO L78 Accepts]: Start accepts. Automaton has 7824 states and 10732 transitions. Word has length 186 [2022-11-20 11:07:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:08,268 INFO L495 AbstractCegarLoop]: Abstraction has 7824 states and 10732 transitions. [2022-11-20 11:07:08,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:07:08,269 INFO L276 IsEmpty]: Start isEmpty. Operand 7824 states and 10732 transitions. [2022-11-20 11:07:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-20 11:07:08,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:08,274 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:08,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:08,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:08,499 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:07:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1847381231, now seen corresponding path program 1 times [2022-11-20 11:07:08,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:08,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328317694] [2022-11-20 11:07:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:08,505 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 11:07:08,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:08,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:08,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:14,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 4375 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:14,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:14,662 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 11:07:14,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:14,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:14,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328317694] [2022-11-20 11:07:14,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328317694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:14,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:14,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:14,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855350338] [2022-11-20 11:07:14,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:14,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:14,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:14,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:14,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:14,665 INFO L87 Difference]: Start difference. First operand 7824 states and 10732 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:07:17,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:19,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:19,661 INFO L93 Difference]: Finished difference Result 21900 states and 30000 transitions. [2022-11-20 11:07:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:19,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 188 [2022-11-20 11:07:19,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:19,778 INFO L225 Difference]: With dead ends: 21900 [2022-11-20 11:07:19,778 INFO L226 Difference]: Without dead ends: 14109 [2022-11-20 11:07:19,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 186 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 11:07:19,826 INFO L413 NwaCegarLoop]: 3454 mSDtfsCounter, 2418 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 6334 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:19,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 6334 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 11:07:19,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14109 states. [2022-11-20 11:07:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14109 to 14084. [2022-11-20 11:07:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14084 states, 9457 states have (on average 1.2509252405625462) internal successors, (11830), 9787 states have internal predecessors, (11830), 3721 states have call successors, (3721), 908 states have call predecessors, (3721), 903 states have return successors, (3719), 3604 states have call predecessors, (3719), 3717 states have call successors, (3719) [2022-11-20 11:07:21,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14084 states to 14084 states and 19270 transitions. [2022-11-20 11:07:21,105 INFO L78 Accepts]: Start accepts. Automaton has 14084 states and 19270 transitions. Word has length 188 [2022-11-20 11:07:21,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:21,107 INFO L495 AbstractCegarLoop]: Abstraction has 14084 states and 19270 transitions. [2022-11-20 11:07:21,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:07:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 14084 states and 19270 transitions. [2022-11-20 11:07:21,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-20 11:07:21,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:21,114 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:21,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:21,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:21,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:07:21,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:21,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1199478735, now seen corresponding path program 1 times [2022-11-20 11:07:21,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:21,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039316944] [2022-11-20 11:07:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:21,345 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 11:07:21,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:21,367 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:21,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:27,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 4445 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:27,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 11:07:28,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:28,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:28,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039316944] [2022-11-20 11:07:28,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039316944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:28,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:28,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:28,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997497809] [2022-11-20 11:07:28,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:28,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:28,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:28,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:28,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:28,298 INFO L87 Difference]: Start difference. First operand 14084 states and 19270 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, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:07:31,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:33,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:33,091 INFO L93 Difference]: Finished difference Result 35243 states and 48195 transitions. [2022-11-20 11:07:33,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:33,092 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, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 198 [2022-11-20 11:07:33,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:33,235 INFO L225 Difference]: With dead ends: 35243 [2022-11-20 11:07:33,235 INFO L226 Difference]: Without dead ends: 21192 [2022-11-20 11:07:33,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 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 11:07:33,308 INFO L413 NwaCegarLoop]: 3539 mSDtfsCounter, 2887 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2887 SdHoareTripleChecker+Valid, 6493 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:33,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2887 Valid, 6493 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 11:07:33,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21192 states. [2022-11-20 11:07:35,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21192 to 21167. [2022-11-20 11:07:35,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21167 states, 14207 states have (on average 1.2479763496867742) internal successors, (17730), 14715 states have internal predecessors, (17730), 5589 states have call successors, (5589), 1375 states have call predecessors, (5589), 1368 states have return successors, (5588), 5400 states have call predecessors, (5588), 5585 states have call successors, (5588) [2022-11-20 11:07:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21167 states to 21167 states and 28907 transitions. [2022-11-20 11:07:35,212 INFO L78 Accepts]: Start accepts. Automaton has 21167 states and 28907 transitions. Word has length 198 [2022-11-20 11:07:35,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:35,213 INFO L495 AbstractCegarLoop]: Abstraction has 21167 states and 28907 transitions. [2022-11-20 11:07:35,214 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, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:07:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 21167 states and 28907 transitions. [2022-11-20 11:07:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-20 11:07:35,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:35,221 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:35,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:35,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:35,447 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:07:35,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:35,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1357686421, now seen corresponding path program 1 times [2022-11-20 11:07:35,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:35,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252917309] [2022-11-20 11:07:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:35,451 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 11:07:35,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:35,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:35,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:41,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 4448 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:41,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 11:07:42,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:42,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:42,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252917309] [2022-11-20 11:07:42,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252917309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:42,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:42,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:42,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478723629] [2022-11-20 11:07:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:42,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:42,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:42,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:42,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:42,326 INFO L87 Difference]: Start difference. First operand 21167 states and 28907 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, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:07:45,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:07:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:07:48,260 INFO L93 Difference]: Finished difference Result 49653 states and 67674 transitions. [2022-11-20 11:07:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:48,261 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, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 198 [2022-11-20 11:07:48,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:07:48,480 INFO L225 Difference]: With dead ends: 49653 [2022-11-20 11:07:48,480 INFO L226 Difference]: Without dead ends: 28519 [2022-11-20 11:07:48,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 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 11:07:48,695 INFO L413 NwaCegarLoop]: 3915 mSDtfsCounter, 2474 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 6825 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:07:48,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2474 Valid, 6825 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 11:07:48,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28519 states. [2022-11-20 11:07:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28519 to 28488. [2022-11-20 11:07:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28488 states, 19071 states have (on average 1.2405746945624245) internal successors, (23659), 19766 states have internal predecessors, (23659), 7482 states have call successors, (7482), 1947 states have call predecessors, (7482), 1932 states have return successors, (7482), 7191 states have call predecessors, (7482), 7478 states have call successors, (7482) [2022-11-20 11:07:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28488 states to 28488 states and 38623 transitions. [2022-11-20 11:07:51,310 INFO L78 Accepts]: Start accepts. Automaton has 28488 states and 38623 transitions. Word has length 198 [2022-11-20 11:07:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:07:51,312 INFO L495 AbstractCegarLoop]: Abstraction has 28488 states and 38623 transitions. [2022-11-20 11:07:51,312 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, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:07:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 28488 states and 38623 transitions. [2022-11-20 11:07:51,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-20 11:07:51,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:07:51,320 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 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] [2022-11-20 11:07:51,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:51,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:51,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:07:51,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2031869905, now seen corresponding path program 1 times [2022-11-20 11:07:51,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:07:51,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651193180] [2022-11-20 11:07:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:51,539 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 11:07:51,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:07:51,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:51,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:07:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:58,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 4425 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:07:58,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:07:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 11:07:58,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:07:58,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:07:58,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651193180] [2022-11-20 11:07:58,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651193180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:58,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:58,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:07:58,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017621719] [2022-11-20 11:07:58,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:58,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:58,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:07:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:58,557 INFO L87 Difference]: Start difference. First operand 28488 states and 38623 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 11:08:01,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:08:04,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:04,694 INFO L93 Difference]: Finished difference Result 78292 states and 106184 transitions. [2022-11-20 11:08:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:04,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 211 [2022-11-20 11:08:04,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:05,219 INFO L225 Difference]: With dead ends: 78292 [2022-11-20 11:08:05,220 INFO L226 Difference]: Without dead ends: 49837 [2022-11-20 11:08:05,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 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 11:08:05,328 INFO L413 NwaCegarLoop]: 4278 mSDtfsCounter, 2811 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 7208 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:05,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 7208 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-20 11:08:05,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49837 states. [2022-11-20 11:08:09,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49837 to 49788. [2022-11-20 11:08:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49788 states, 33490 states have (on average 1.2389668557778442) internal successors, (41493), 34743 states have internal predecessors, (41493), 12946 states have call successors, (12946), 3378 states have call predecessors, (12946), 3349 states have return successors, (12950), 12398 states have call predecessors, (12950), 12942 states have call successors, (12950) [2022-11-20 11:08:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49788 states to 49788 states and 67389 transitions. [2022-11-20 11:08:09,627 INFO L78 Accepts]: Start accepts. Automaton has 49788 states and 67389 transitions. Word has length 211 [2022-11-20 11:08:09,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:08:09,628 INFO L495 AbstractCegarLoop]: Abstraction has 49788 states and 67389 transitions. [2022-11-20 11:08:09,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 11:08:09,628 INFO L276 IsEmpty]: Start isEmpty. Operand 49788 states and 67389 transitions. [2022-11-20 11:08:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-20 11:08:09,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:08:09,635 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 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 11:08:09,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:08:09,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:08:09,859 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:08:09,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:08:09,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1837612745, now seen corresponding path program 1 times [2022-11-20 11:08:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:08:09,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081374396] [2022-11-20 11:08:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:08:09,865 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 11:08:09,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:08:09,868 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:08:09,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c08e80d-7f3d-47b9-8bad-577c123c5488/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 11:08:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:08:17,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 4472 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:08:17,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:08:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-11-20 11:08:17,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:08:17,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:08:17,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081374396] [2022-11-20 11:08:17,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081374396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:08:17,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:08:17,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:08:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569886648] [2022-11-20 11:08:17,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:08:17,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:08:17,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:08:17,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:08:17,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:08:17,465 INFO L87 Difference]: Start difference. First operand 49788 states and 67389 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, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 11:08:20,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:08:26,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:08:26,480 INFO L93 Difference]: Finished difference Result 146795 states and 198764 transitions. [2022-11-20 11:08:26,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:08:26,481 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, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 245 [2022-11-20 11:08:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:08:27,059 INFO L225 Difference]: With dead ends: 146795 [2022-11-20 11:08:27,059 INFO L226 Difference]: Without dead ends: 97221 [2022-11-20 11:08:27,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 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 11:08:27,285 INFO L413 NwaCegarLoop]: 4697 mSDtfsCounter, 2806 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 7639 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:08:27,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 7639 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 11:08:27,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97221 states.