./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:49:40,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:49:40,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:49:40,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:49:40,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:49:40,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:49:40,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:49:40,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:49:40,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:49:40,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:49:40,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:49:40,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:49:40,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:49:40,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:49:40,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:49:40,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:49:40,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:49:40,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:49:40,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:49:40,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:49:40,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:49:40,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:49:40,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:49:40,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:49:40,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:49:40,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:49:40,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:49:40,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:49:40,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:49:40,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:49:40,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:49:40,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:49:40,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:49:40,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:49:40,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:49:40,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:49:40,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:49:40,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:49:40,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:49:40,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:49:40,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:49:40,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:49:40,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:49:40,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:49:40,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:49:40,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:49:40,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:49:40,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:49:40,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:49:40,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:49:40,295 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:49:40,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:49:40,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:49:40,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:49:40,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:49:40,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:49:40,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:49:40,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:49:40,298 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:49:40,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:49:40,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:49:40,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:49:40,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:49:40,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:40,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:49:40,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:49:40,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:49:40,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:49:40,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:49:40,300 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:49:40,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:49:40,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:49:40,302 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2022-11-20 12:49:40,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:49:40,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:49:40,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:49:40,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:49:40,669 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:49:40,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2022-11-20 12:49:43,819 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:49:44,433 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:49:44,434 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2022-11-20 12:49:44,499 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data/d3432e89f/b74649fe08164584bb1feb348961e8a2/FLAG2dff29d4d [2022-11-20 12:49:44,520 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data/d3432e89f/b74649fe08164584bb1feb348961e8a2 [2022-11-20 12:49:44,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:49:44,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:49:44,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:44,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:49:44,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:49:44,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dbbaed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:44, skipping insertion in model container [2022-11-20 12:49:44,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:44" (1/1) ... [2022-11-20 12:49:44,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:49:44,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:49:45,280 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 12:49:45,291 INFO L158 Benchmark]: Toolchain (without parser) took 762.09ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 101.3MB in the beginning and 143.0MB in the end (delta: -41.7MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-11-20 12:49:45,291 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 100.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:49:45,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.37ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 101.3MB in the beginning and 143.0MB in the end (delta: -41.7MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-11-20 12:49:45,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 100.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.37ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 101.3MB in the beginning and 143.0MB in the end (delta: -41.7MB). Peak memory consumption was 50.9MB. 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:49:47,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:49:47,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:49:47,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:49:47,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:49:47,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:49:47,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:49:47,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:49:47,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:49:47,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:49:47,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:49:47,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:49:47,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:49:47,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:49:47,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:49:47,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:49:47,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:49:47,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:49:47,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:49:47,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:49:47,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:49:47,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:49:47,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:49:47,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:49:47,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:49:47,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:49:47,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:49:47,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:49:47,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:49:47,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:49:47,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:49:47,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:49:47,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:49:47,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:49:47,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:49:47,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:49:47,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:49:47,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:49:47,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:49:47,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:49:47,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:49:47,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:49:47,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:49:47,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:49:47,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:49:47,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:49:47,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:49:47,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:49:47,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:49:47,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:49:47,751 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:49:47,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:49:47,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:49:47,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:49:47,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:49:47,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:49:47,753 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:49:47,753 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:49:47,754 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:49:47,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:49:47,754 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:49:47,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:49:47,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:49:47,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:49:47,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:49:47,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:47,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:49:47,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:49:47,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:49:47,757 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:49:47,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:49:47,757 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:49:47,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:49:47,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:49:47,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:49:47,759 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2022-11-20 12:49:48,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:49:48,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:49:48,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:49:48,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:49:48,189 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:49:48,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2022-11-20 12:49:51,378 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:49:52,040 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:49:52,041 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2022-11-20 12:49:52,094 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data/8da6a8eac/04072e1b6f0c45cd8d7cff1ee4da5baa/FLAG3c5c2f643 [2022-11-20 12:49:52,113 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/data/8da6a8eac/04072e1b6f0c45cd8d7cff1ee4da5baa [2022-11-20 12:49:52,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:49:52,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:49:52,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:52,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:49:52,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:49:52,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:52" (1/1) ... [2022-11-20 12:49:52,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180fb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:52, skipping insertion in model container [2022-11-20 12:49:52,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:49:52" (1/1) ... [2022-11-20 12:49:52,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:49:52,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:49:54,889 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2022-11-20 12:49:54,894 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2022-11-20 12:49:54,894 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2022-11-20 12:49:54,895 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2022-11-20 12:49:54,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:54,994 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:49:55,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:49:55,387 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2022-11-20 12:49:55,396 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2022-11-20 12:49:55,397 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2022-11-20 12:49:55,398 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2022-11-20 12:49:55,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:55,473 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:49:55,825 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2022-11-20 12:49:55,826 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2022-11-20 12:49:55,826 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2022-11-20 12:49:55,827 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_31e58bb5-5826-4c49-9c2a-80af12a15f8a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2022-11-20 12:49:55,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:49:56,114 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:49:56,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56 WrapperNode [2022-11-20 12:49:56,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:49:56,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:56,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:49:56,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:49:56,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,417 INFO L138 Inliner]: procedures = 427, calls = 1858, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 4445 [2022-11-20 12:49:56,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:49:56,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:49:56,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:49:56,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:49:56,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:49:56,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:49:56,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:49:56,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:49:56,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (1/1) ... [2022-11-20 12:49:56,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:49:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:49:56,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:49:56,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:49:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2022-11-20 12:49:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2022-11-20 12:49:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:49:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:49:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:49:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:49:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 12:49:56,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 12:49:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:49:56,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:49:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2022-11-20 12:49:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2022-11-20 12:49:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:49:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:49:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-20 12:49:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-20 12:49:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:49:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:49:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 12:49:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 12:49:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2022-11-20 12:49:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2022-11-20 12:49:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:49:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 12:49:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 12:49:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 12:49:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 12:49:56,882 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 12:49:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:49:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:49:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:49:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:49:56,883 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 12:49:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 12:49:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:49:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 12:49:56,884 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 12:49:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 12:49:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:49:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:49:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:49:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:49:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:49:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 12:49:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 12:49:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 12:49:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 12:49:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 12:49:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 12:49:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 12:49:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 12:49:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 12:49:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 12:49:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 12:49:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 12:49:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 12:49:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 12:49:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-20 12:49:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-20 12:49:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 12:49:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 12:49:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:49:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:49:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:49:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 12:49:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 12:49:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 12:49:56,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 12:49:56,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 12:49:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 12:49:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:49:56,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:49:56,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:49:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 12:49:56,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 12:49:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:49:56,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:49:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:49:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:49:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:49:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:49:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2022-11-20 12:49:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2022-11-20 12:49:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:49:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:49:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 12:49:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 12:49:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 12:49:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 12:49:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 12:49:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 12:49:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:49:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-20 12:49:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-20 12:49:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-20 12:49:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-20 12:49:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2022-11-20 12:49:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2022-11-20 12:49:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 12:49:56,896 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 12:49:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:49:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:49:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:49:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:49:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:49:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:49:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:49:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:49:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:49:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:49:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:49:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:49:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2022-11-20 12:49:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2022-11-20 12:49:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 12:49:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 12:49:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 12:49:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 12:49:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2022-11-20 12:49:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2022-11-20 12:49:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:49:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:49:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 12:49:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 12:49:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 12:49:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 12:49:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:49:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 12:49:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 12:49:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:49:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 12:49:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 12:49:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:49:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:49:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:49:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:49:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:49:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 12:49:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 12:49:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 12:49:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 12:49:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:49:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:49:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2022-11-20 12:49:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2022-11-20 12:49:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 12:49:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 12:49:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 12:49:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 12:49:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 12:49:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 12:49:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:49:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:49:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2022-11-20 12:49:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2022-11-20 12:49:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:49:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:49:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:49:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:49:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:49:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:49:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:49:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:49:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2022-11-20 12:49:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2022-11-20 12:49:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2022-11-20 12:49:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2022-11-20 12:49:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2022-11-20 12:49:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2022-11-20 12:49:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 12:49:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 12:49:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-20 12:49:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-20 12:49:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 12:49:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 12:49:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2022-11-20 12:49:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2022-11-20 12:49:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 12:49:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 12:49:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-20 12:49:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-20 12:49:57,765 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:49:57,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:49:57,974 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:50:21,858 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 12:50:21,935 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:50:21,953 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:50:21,953 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:50:21,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:21 BoogieIcfgContainer [2022-11-20 12:50:21,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:50:21,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:50:21,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:50:21,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:50:21,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:49:52" (1/3) ... [2022-11-20 12:50:21,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f213091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:50:21, skipping insertion in model container [2022-11-20 12:50:21,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:49:56" (2/3) ... [2022-11-20 12:50:21,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f213091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:50:21, skipping insertion in model container [2022-11-20 12:50:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:50:21" (3/3) ... [2022-11-20 12:50:21,967 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2022-11-20 12:50:21,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:50:21,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 12:50:22,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:50:22,073 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;@5e90e28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:50:22,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 12:50:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 1544 states, 1070 states have (on average 1.2813084112149533) internal successors, (1371), 1097 states have internal predecessors, (1371), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) [2022-11-20 12:50:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-20 12:50:22,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:22,105 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:22,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:22,111 INFO L85 PathProgramCache]: Analyzing trace with hash 886351418, now seen corresponding path program 1 times [2022-11-20 12:50:22,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:22,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24814998] [2022-11-20 12:50:22,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:22,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:22,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:22,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:22,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:50:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:23,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:50:23,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 12:50:24,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:24,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:24,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24814998] [2022-11-20 12:50:24,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24814998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:24,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:24,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:50:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953952483] [2022-11-20 12:50:24,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:24,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:50:24,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:24,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:50:24,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:24,054 INFO L87 Difference]: Start difference. First operand has 1544 states, 1070 states have (on average 1.2813084112149533) internal successors, (1371), 1097 states have internal predecessors, (1371), 397 states have call successors, (397), 75 states have call predecessors, (397), 74 states have return successors, (390), 377 states have call predecessors, (390), 390 states have call successors, (390) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:50:24,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:24,681 INFO L93 Difference]: Finished difference Result 4304 states and 6124 transitions. [2022-11-20 12:50:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:50:24,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2022-11-20 12:50:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:24,715 INFO L225 Difference]: With dead ends: 4304 [2022-11-20 12:50:24,715 INFO L226 Difference]: Without dead ends: 2767 [2022-11-20 12:50:24,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:24,731 INFO L413 NwaCegarLoop]: 2564 mSDtfsCounter, 1786 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 4634 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:24,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 4634 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:50:24,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2022-11-20 12:50:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2740. [2022-11-20 12:50:25,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 1901 states have (on average 1.2698579694897423) internal successors, (2414), 1955 states have internal predecessors, (2414), 696 states have call successors, (696), 142 states have call predecessors, (696), 140 states have return successors, (701), 661 states have call predecessors, (701), 692 states have call successors, (701) [2022-11-20 12:50:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 3811 transitions. [2022-11-20 12:50:25,046 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 3811 transitions. Word has length 129 [2022-11-20 12:50:25,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:25,048 INFO L495 AbstractCegarLoop]: Abstraction has 2740 states and 3811 transitions. [2022-11-20 12:50:25,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 12:50:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 3811 transitions. [2022-11-20 12:50:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-20 12:50:25,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:25,064 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:25,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:50:25,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:25,287 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:25,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:25,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1676026510, now seen corresponding path program 1 times [2022-11-20 12:50:25,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:25,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903881369] [2022-11-20 12:50:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:25,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:25,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:25,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:25,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:50:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:26,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:50:26,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 12:50:27,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:27,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:27,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903881369] [2022-11-20 12:50:27,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903881369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:27,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:27,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:50:27,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197765597] [2022-11-20 12:50:27,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:27,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:50:27,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:27,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:50:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:27,077 INFO L87 Difference]: Start difference. First operand 2740 states and 3811 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:50:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:27,767 INFO L93 Difference]: Finished difference Result 8031 states and 11174 transitions. [2022-11-20 12:50:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:50:27,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2022-11-20 12:50:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:27,804 INFO L225 Difference]: With dead ends: 8031 [2022-11-20 12:50:27,804 INFO L226 Difference]: Without dead ends: 5314 [2022-11-20 12:50:27,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:27,819 INFO L413 NwaCegarLoop]: 2481 mSDtfsCounter, 1988 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:27,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1988 Valid, 4547 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:50:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2022-11-20 12:50:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 5310. [2022-11-20 12:50:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5310 states, 3700 states have (on average 1.2705405405405406) internal successors, (4701), 3800 states have internal predecessors, (4701), 1330 states have call successors, (1330), 280 states have call predecessors, (1330), 277 states have return successors, (1344), 1267 states have call predecessors, (1344), 1326 states have call successors, (1344) [2022-11-20 12:50:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5310 states to 5310 states and 7375 transitions. [2022-11-20 12:50:28,231 INFO L78 Accepts]: Start accepts. Automaton has 5310 states and 7375 transitions. Word has length 129 [2022-11-20 12:50:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:28,231 INFO L495 AbstractCegarLoop]: Abstraction has 5310 states and 7375 transitions. [2022-11-20 12:50:28,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:50:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5310 states and 7375 transitions. [2022-11-20 12:50:28,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 12:50:28,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:28,237 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:28,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:50:28,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:28,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:28,451 INFO L85 PathProgramCache]: Analyzing trace with hash 121168537, now seen corresponding path program 1 times [2022-11-20 12:50:28,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:28,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140110804] [2022-11-20 12:50:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:28,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:28,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:28,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:28,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:50:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:30,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:50:30,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 12:50:30,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:30,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:30,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140110804] [2022-11-20 12:50:30,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140110804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:30,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:30,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:50:30,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616940532] [2022-11-20 12:50:30,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:30,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:50:30,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:30,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:50:30,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:30,129 INFO L87 Difference]: Start difference. First operand 5310 states and 7375 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:50:31,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:31,052 INFO L93 Difference]: Finished difference Result 14946 states and 20781 transitions. [2022-11-20 12:50:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:50:31,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-11-20 12:50:31,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:31,122 INFO L225 Difference]: With dead ends: 14946 [2022-11-20 12:50:31,122 INFO L226 Difference]: Without dead ends: 9659 [2022-11-20 12:50:31,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:31,151 INFO L413 NwaCegarLoop]: 2473 mSDtfsCounter, 1786 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:31,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 4528 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:50:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9659 states. [2022-11-20 12:50:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9659 to 9628. [2022-11-20 12:50:31,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9628 states, 6660 states have (on average 1.271021021021021) internal successors, (8465), 6850 states have internal predecessors, (8465), 2438 states have call successors, (2438), 532 states have call predecessors, (2438), 527 states have return successors, (2476), 2311 states have call predecessors, (2476), 2434 states have call successors, (2476) [2022-11-20 12:50:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9628 states to 9628 states and 13379 transitions. [2022-11-20 12:50:31,884 INFO L78 Accepts]: Start accepts. Automaton has 9628 states and 13379 transitions. Word has length 134 [2022-11-20 12:50:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:31,885 INFO L495 AbstractCegarLoop]: Abstraction has 9628 states and 13379 transitions. [2022-11-20 12:50:31,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:50:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand 9628 states and 13379 transitions. [2022-11-20 12:50:31,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 12:50:31,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:31,892 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 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] [2022-11-20 12:50:31,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:50:32,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:32,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash 40539441, now seen corresponding path program 1 times [2022-11-20 12:50:32,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:32,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68339280] [2022-11-20 12:50:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:32,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:32,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:32,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:32,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:50:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:33,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:50:33,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-11-20 12:50:33,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:33,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:33,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68339280] [2022-11-20 12:50:33,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68339280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:33,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:33,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:50:33,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647068552] [2022-11-20 12:50:33,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:33,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:50:33,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:33,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:50:33,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:33,777 INFO L87 Difference]: Start difference. First operand 9628 states and 13379 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 12:50:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:34,761 INFO L93 Difference]: Finished difference Result 19281 states and 26792 transitions. [2022-11-20 12:50:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:50:34,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 187 [2022-11-20 12:50:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:34,878 INFO L225 Difference]: With dead ends: 19281 [2022-11-20 12:50:34,879 INFO L226 Difference]: Without dead ends: 14296 [2022-11-20 12:50:34,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:34,906 INFO L413 NwaCegarLoop]: 4086 mSDtfsCounter, 1961 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 6178 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:34,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 6178 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:50:34,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14296 states. [2022-11-20 12:50:35,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14296 to 14292. [2022-11-20 12:50:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14292 states, 9894 states have (on average 1.2711744491611077) internal successors, (12577), 10172 states have internal predecessors, (12577), 3607 states have call successors, (3607), 795 states have call predecessors, (3607), 788 states have return successors, (3666), 3423 states have call predecessors, (3666), 3603 states have call successors, (3666) [2022-11-20 12:50:35,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14292 states to 14292 states and 19850 transitions. [2022-11-20 12:50:35,905 INFO L78 Accepts]: Start accepts. Automaton has 14292 states and 19850 transitions. Word has length 187 [2022-11-20 12:50:35,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:35,906 INFO L495 AbstractCegarLoop]: Abstraction has 14292 states and 19850 transitions. [2022-11-20 12:50:35,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 12:50:35,906 INFO L276 IsEmpty]: Start isEmpty. Operand 14292 states and 19850 transitions. [2022-11-20 12:50:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 12:50:35,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:35,913 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 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] [2022-11-20 12:50:35,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:50:36,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:36,135 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:36,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1963767475, now seen corresponding path program 1 times [2022-11-20 12:50:36,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:36,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763641508] [2022-11-20 12:50:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:36,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:36,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:36,139 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:36,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:50:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:37,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:50:37,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-20 12:50:38,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:38,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:38,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763641508] [2022-11-20 12:50:38,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763641508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:38,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:38,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:50:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166087381] [2022-11-20 12:50:38,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:38,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:50:38,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:38,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:50:38,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:50:38,462 INFO L87 Difference]: Start difference. First operand 14292 states and 19850 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 12:50:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:39,567 INFO L93 Difference]: Finished difference Result 14298 states and 19855 transitions. [2022-11-20 12:50:39,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:50:39,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 187 [2022-11-20 12:50:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:39,639 INFO L225 Difference]: With dead ends: 14298 [2022-11-20 12:50:39,639 INFO L226 Difference]: Without dead ends: 14296 [2022-11-20 12:50:39,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:50:39,648 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 2042 mSDsluCounter, 4232 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 6354 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:39,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 6354 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:50:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14296 states. [2022-11-20 12:50:40,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14296 to 14296. [2022-11-20 12:50:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14296 states, 9897 states have (on average 1.2710922501768214) internal successors, (12580), 10175 states have internal predecessors, (12580), 3607 states have call successors, (3607), 796 states have call predecessors, (3607), 789 states have return successors, (3666), 3423 states have call predecessors, (3666), 3603 states have call successors, (3666) [2022-11-20 12:50:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14296 states to 14296 states and 19853 transitions. [2022-11-20 12:50:40,825 INFO L78 Accepts]: Start accepts. Automaton has 14296 states and 19853 transitions. Word has length 187 [2022-11-20 12:50:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:40,825 INFO L495 AbstractCegarLoop]: Abstraction has 14296 states and 19853 transitions. [2022-11-20 12:50:40,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 12:50:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 14296 states and 19853 transitions. [2022-11-20 12:50:40,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 12:50:40,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:40,834 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:40,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:50:41,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:41,050 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:41,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:41,050 INFO L85 PathProgramCache]: Analyzing trace with hash 948887471, now seen corresponding path program 1 times [2022-11-20 12:50:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:41,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610731957] [2022-11-20 12:50:41,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:41,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:41,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:41,053 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:41,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:50:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:42,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:50:42,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:43,352 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-20 12:50:43,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:50:43,947 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2022-11-20 12:50:43,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:43,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610731957] [2022-11-20 12:50:43,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610731957] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:50:43,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:50:43,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:50:43,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695687104] [2022-11-20 12:50:43,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:43,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:50:43,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:43,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:50:43,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:50:43,950 INFO L87 Difference]: Start difference. First operand 14296 states and 19853 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:50:45,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:45,176 INFO L93 Difference]: Finished difference Result 14302 states and 19858 transitions. [2022-11-20 12:50:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:50:45,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2022-11-20 12:50:45,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:45,244 INFO L225 Difference]: With dead ends: 14302 [2022-11-20 12:50:45,244 INFO L226 Difference]: Without dead ends: 14300 [2022-11-20 12:50:45,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:50:45,254 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 2060 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:45,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 6356 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:50:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14300 states. [2022-11-20 12:50:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14300 to 14300. [2022-11-20 12:50:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14300 states, 9900 states have (on average 1.271010101010101) internal successors, (12583), 10178 states have internal predecessors, (12583), 3607 states have call successors, (3607), 797 states have call predecessors, (3607), 790 states have return successors, (3666), 3423 states have call predecessors, (3666), 3603 states have call successors, (3666) [2022-11-20 12:50:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14300 states to 14300 states and 19856 transitions. [2022-11-20 12:50:46,583 INFO L78 Accepts]: Start accepts. Automaton has 14300 states and 19856 transitions. Word has length 192 [2022-11-20 12:50:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:46,584 INFO L495 AbstractCegarLoop]: Abstraction has 14300 states and 19856 transitions. [2022-11-20 12:50:46,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 12:50:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 14300 states and 19856 transitions. [2022-11-20 12:50:46,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-20 12:50:46,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:46,593 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:46,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:50:46,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:46,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1179126771, now seen corresponding path program 1 times [2022-11-20 12:50:46,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:46,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265166768] [2022-11-20 12:50:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:46,809 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:46,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:46,812 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:46,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:50:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:48,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1514 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:50:48,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-11-20 12:50:49,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:50:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-11-20 12:50:49,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:49,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265166768] [2022-11-20 12:50:49,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265166768] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:50:49,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:50:49,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:50:49,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205026968] [2022-11-20 12:50:49,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:49,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:50:49,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:49,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:50:49,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:50:49,907 INFO L87 Difference]: Start difference. First operand 14300 states and 19856 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:50:51,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:51,355 INFO L93 Difference]: Finished difference Result 14306 states and 19861 transitions. [2022-11-20 12:50:51,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:50:51,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 197 [2022-11-20 12:50:51,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:51,435 INFO L225 Difference]: With dead ends: 14306 [2022-11-20 12:50:51,435 INFO L226 Difference]: Without dead ends: 14304 [2022-11-20 12:50:51,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:50:51,447 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 2060 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:51,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 6356 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:50:51,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14304 states. [2022-11-20 12:50:52,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14304 to 14304. [2022-11-20 12:50:52,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14304 states, 9903 states have (on average 1.270928001615672) internal successors, (12586), 10181 states have internal predecessors, (12586), 3607 states have call successors, (3607), 798 states have call predecessors, (3607), 791 states have return successors, (3666), 3423 states have call predecessors, (3666), 3603 states have call successors, (3666) [2022-11-20 12:50:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14304 states to 14304 states and 19859 transitions. [2022-11-20 12:50:52,805 INFO L78 Accepts]: Start accepts. Automaton has 14304 states and 19859 transitions. Word has length 197 [2022-11-20 12:50:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:52,806 INFO L495 AbstractCegarLoop]: Abstraction has 14304 states and 19859 transitions. [2022-11-20 12:50:52,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 12:50:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 14304 states and 19859 transitions. [2022-11-20 12:50:52,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:50:52,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:52,816 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:52,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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)] Forceful destruction successful, exit code 0 [2022-11-20 12:50:53,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:53,039 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:53,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:53,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1700373918, now seen corresponding path program 1 times [2022-11-20 12:50:53,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:53,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614025676] [2022-11-20 12:50:53,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:53,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:53,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:53,043 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:53,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (9)] Waiting until timeout for monitored process [2022-11-20 12:50:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:54,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:50:54,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-11-20 12:50:54,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:54,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:54,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614025676] [2022-11-20 12:50:54,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614025676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:54,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:54,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:50:54,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784828692] [2022-11-20 12:50:54,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:54,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:50:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:50:54,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:54,789 INFO L87 Difference]: Start difference. First operand 14304 states and 19859 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:50:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:50:56,029 INFO L93 Difference]: Finished difference Result 28861 states and 39923 transitions. [2022-11-20 12:50:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:50:56,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 195 [2022-11-20 12:50:56,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:50:56,096 INFO L225 Difference]: With dead ends: 28861 [2022-11-20 12:50:56,097 INFO L226 Difference]: Without dead ends: 14580 [2022-11-20 12:50:56,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:56,150 INFO L413 NwaCegarLoop]: 2797 mSDtfsCounter, 1275 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 4857 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:50:56,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 4857 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:50:56,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14580 states. [2022-11-20 12:50:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14580 to 14537. [2022-11-20 12:50:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14537 states, 10245 states have (on average 1.2652025378233285) internal successors, (12962), 10497 states have internal predecessors, (12962), 3452 states have call successors, (3452), 846 states have call predecessors, (3452), 837 states have return successors, (3490), 3281 states have call predecessors, (3490), 3448 states have call successors, (3490) [2022-11-20 12:50:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14537 states to 14537 states and 19904 transitions. [2022-11-20 12:50:58,053 INFO L78 Accepts]: Start accepts. Automaton has 14537 states and 19904 transitions. Word has length 195 [2022-11-20 12:50:58,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:50:58,053 INFO L495 AbstractCegarLoop]: Abstraction has 14537 states and 19904 transitions. [2022-11-20 12:50:58,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 12:50:58,054 INFO L276 IsEmpty]: Start isEmpty. Operand 14537 states and 19904 transitions. [2022-11-20 12:50:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-20 12:50:58,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:50:58,061 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:50:58,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (9)] Ended with exit code 0 [2022-11-20 12:50:58,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:58,275 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:50:58,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:50:58,275 INFO L85 PathProgramCache]: Analyzing trace with hash 710678251, now seen corresponding path program 1 times [2022-11-20 12:50:58,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:50:58,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442105441] [2022-11-20 12:50:58,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:50:58,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:50:58,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:50:58,279 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:50:58,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (10)] Waiting until timeout for monitored process [2022-11-20 12:50:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:50:59,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1567 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:50:59,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:50:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-11-20 12:50:59,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:50:59,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:50:59,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442105441] [2022-11-20 12:50:59,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442105441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:50:59,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:50:59,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:50:59,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224157842] [2022-11-20 12:50:59,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:50:59,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:50:59,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:50:59,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:50:59,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:50:59,839 INFO L87 Difference]: Start difference. First operand 14537 states and 19904 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 12:51:01,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:51:01,593 INFO L93 Difference]: Finished difference Result 35804 states and 49075 transitions. [2022-11-20 12:51:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:51:01,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 212 [2022-11-20 12:51:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:51:01,700 INFO L225 Difference]: With dead ends: 35804 [2022-11-20 12:51:01,701 INFO L226 Difference]: Without dead ends: 21459 [2022-11-20 12:51:01,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:51:01,751 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 1993 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 6192 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:51:01,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 6192 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:51:01,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21459 states. [2022-11-20 12:51:03,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21459 to 21425. [2022-11-20 12:51:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21425 states, 15115 states have (on average 1.2652993714852796) internal successors, (19125), 15478 states have internal predecessors, (19125), 5071 states have call successors, (5071), 1247 states have call predecessors, (5071), 1236 states have return successors, (5130), 4831 states have call predecessors, (5130), 5067 states have call successors, (5130) [2022-11-20 12:51:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21425 states to 21425 states and 29326 transitions. [2022-11-20 12:51:03,851 INFO L78 Accepts]: Start accepts. Automaton has 21425 states and 29326 transitions. Word has length 212 [2022-11-20 12:51:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:51:03,852 INFO L495 AbstractCegarLoop]: Abstraction has 21425 states and 29326 transitions. [2022-11-20 12:51:03,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 12:51:03,852 INFO L276 IsEmpty]: Start isEmpty. Operand 21425 states and 29326 transitions. [2022-11-20 12:51:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-20 12:51:03,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:51:03,859 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 12:51:03,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:51:04,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:04,083 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:51:04,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:51:04,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1838219759, now seen corresponding path program 1 times [2022-11-20 12:51:04,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:51:04,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462405060] [2022-11-20 12:51:04,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:51:04,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:04,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:51:04,087 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:51:04,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (11)] Waiting until timeout for monitored process [2022-11-20 12:51:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:51:05,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:51:05,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:51:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-11-20 12:51:06,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:51:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-11-20 12:51:06,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:51:06,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462405060] [2022-11-20 12:51:06,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462405060] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:51:06,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:51:06,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:51:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163817766] [2022-11-20 12:51:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:51:06,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:51:06,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:51:06,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:51:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:51:06,851 INFO L87 Difference]: Start difference. First operand 21425 states and 29326 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:51:08,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:51:08,800 INFO L93 Difference]: Finished difference Result 21431 states and 29331 transitions. [2022-11-20 12:51:08,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:51:08,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 202 [2022-11-20 12:51:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:51:09,006 INFO L225 Difference]: With dead ends: 21431 [2022-11-20 12:51:09,006 INFO L226 Difference]: Without dead ends: 21429 [2022-11-20 12:51:09,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:51:09,015 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 2060 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:51:09,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2068 Valid, 6356 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:51:09,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21429 states. [2022-11-20 12:51:11,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21429 to 21429. [2022-11-20 12:51:11,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21429 states, 15118 states have (on average 1.2652467257573754) internal successors, (19128), 15481 states have internal predecessors, (19128), 5071 states have call successors, (5071), 1248 states have call predecessors, (5071), 1237 states have return successors, (5130), 4831 states have call predecessors, (5130), 5067 states have call successors, (5130) [2022-11-20 12:51:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21429 states to 21429 states and 29329 transitions. [2022-11-20 12:51:11,216 INFO L78 Accepts]: Start accepts. Automaton has 21429 states and 29329 transitions. Word has length 202 [2022-11-20 12:51:11,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:51:11,217 INFO L495 AbstractCegarLoop]: Abstraction has 21429 states and 29329 transitions. [2022-11-20 12:51:11,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:51:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 21429 states and 29329 transitions. [2022-11-20 12:51:11,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-20 12:51:11,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:51:11,225 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 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] [2022-11-20 12:51:11,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:51:11,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:11,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:51:11,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:51:11,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1421574451, now seen corresponding path program 1 times [2022-11-20 12:51:11,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:51:11,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489762218] [2022-11-20 12:51:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:51:11,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:11,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:51:11,450 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:51:11,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (12)] Waiting until timeout for monitored process [2022-11-20 12:51:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:51:12,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1528 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:51:12,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:51:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2022-11-20 12:51:13,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:51:14,270 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2022-11-20 12:51:14,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:51:14,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489762218] [2022-11-20 12:51:14,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489762218] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:51:14,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:51:14,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:51:14,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271428872] [2022-11-20 12:51:14,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:51:14,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:51:14,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:51:14,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:51:14,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:51:14,273 INFO L87 Difference]: Start difference. First operand 21429 states and 29329 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:51:16,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:51:16,089 INFO L93 Difference]: Finished difference Result 21435 states and 29334 transitions. [2022-11-20 12:51:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:51:16,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2022-11-20 12:51:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:51:16,166 INFO L225 Difference]: With dead ends: 21435 [2022-11-20 12:51:16,166 INFO L226 Difference]: Without dead ends: 21433 [2022-11-20 12:51:16,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:51:16,176 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 2060 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:51:16,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 6356 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:51:16,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21433 states. [2022-11-20 12:51:18,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21433 to 21433. [2022-11-20 12:51:18,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21433 states, 15121 states have (on average 1.2651941009192513) internal successors, (19131), 15484 states have internal predecessors, (19131), 5071 states have call successors, (5071), 1249 states have call predecessors, (5071), 1238 states have return successors, (5130), 4831 states have call predecessors, (5130), 5067 states have call successors, (5130) [2022-11-20 12:51:18,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21433 states to 21433 states and 29332 transitions. [2022-11-20 12:51:18,319 INFO L78 Accepts]: Start accepts. Automaton has 21433 states and 29332 transitions. Word has length 207 [2022-11-20 12:51:18,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:51:18,319 INFO L495 AbstractCegarLoop]: Abstraction has 21433 states and 29332 transitions. [2022-11-20 12:51:18,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:51:18,320 INFO L276 IsEmpty]: Start isEmpty. Operand 21433 states and 29332 transitions. [2022-11-20 12:51:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-20 12:51:18,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:51:18,326 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 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] [2022-11-20 12:51:18,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:51:18,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:18,551 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:51:18,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:51:18,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2089876433, now seen corresponding path program 1 times [2022-11-20 12:51:18,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:51:18,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981105723] [2022-11-20 12:51:18,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:51:18,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:18,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:51:18,554 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:51:18,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (13)] Waiting until timeout for monitored process [2022-11-20 12:51:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:51:19,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:51:19,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:51:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-11-20 12:51:20,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:51:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-11-20 12:51:21,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:51:21,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981105723] [2022-11-20 12:51:21,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981105723] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:51:21,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:51:21,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:51:21,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626935464] [2022-11-20 12:51:21,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:51:21,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:51:21,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:51:21,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:51:21,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:51:21,275 INFO L87 Difference]: Start difference. First operand 21433 states and 29332 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:51:23,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:51:23,244 INFO L93 Difference]: Finished difference Result 21439 states and 29337 transitions. [2022-11-20 12:51:23,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:51:23,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 212 [2022-11-20 12:51:23,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:51:23,317 INFO L225 Difference]: With dead ends: 21439 [2022-11-20 12:51:23,317 INFO L226 Difference]: Without dead ends: 21437 [2022-11-20 12:51:23,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:51:23,326 INFO L413 NwaCegarLoop]: 2125 mSDtfsCounter, 2060 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:51:23,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 6356 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:51:23,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21437 states. [2022-11-20 12:51:25,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21437 to 21437. [2022-11-20 12:51:25,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21437 states, 15124 states have (on average 1.2651414969584767) internal successors, (19134), 15487 states have internal predecessors, (19134), 5071 states have call successors, (5071), 1250 states have call predecessors, (5071), 1239 states have return successors, (5130), 4831 states have call predecessors, (5130), 5067 states have call successors, (5130) [2022-11-20 12:51:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21437 states to 21437 states and 29335 transitions. [2022-11-20 12:51:25,510 INFO L78 Accepts]: Start accepts. Automaton has 21437 states and 29335 transitions. Word has length 212 [2022-11-20 12:51:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:51:25,510 INFO L495 AbstractCegarLoop]: Abstraction has 21437 states and 29335 transitions. [2022-11-20 12:51:25,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:51:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 21437 states and 29335 transitions. [2022-11-20 12:51:25,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-20 12:51:25,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:51:25,517 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 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] [2022-11-20 12:51:25,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:51:25,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:25,739 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:51:25,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:51:25,739 INFO L85 PathProgramCache]: Analyzing trace with hash 280958579, now seen corresponding path program 1 times [2022-11-20 12:51:25,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:51:25,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388491102] [2022-11-20 12:51:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:51:25,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:51:25,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:51:25,743 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:51:25,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e58bb5-5826-4c49-9c2a-80af12a15f8a/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 (14)] Waiting until timeout for monitored process [2022-11-20 12:51:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:51:27,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:51:27,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:51:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-20 12:51:28,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:51:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-20 12:51:28,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:51:28,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388491102] [2022-11-20 12:51:28,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388491102] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:51:28,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:51:28,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:51:28,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397081929] [2022-11-20 12:51:28,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:51:28,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:51:28,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:51:28,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:51:28,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:51:28,488 INFO L87 Difference]: Start difference. First operand 21437 states and 29335 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)