./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- 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 20:50:07,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:50:07,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:50:07,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:50:07,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:50:07,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:50:07,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:50:07,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:50:07,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:50:07,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:50:07,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:50:07,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:50:07,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:50:07,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:50:07,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:50:07,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:50:07,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:50:07,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:50:07,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:50:07,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:50:07,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:50:07,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:50:07,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:50:07,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:50:07,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:50:07,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:50:07,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:50:07,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:50:07,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:50:07,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:50:07,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:50:07,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:50:07,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:50:07,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:50:07,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:50:07,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:50:07,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:50:07,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:50:07,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:50:07,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:50:07,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:50:07,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:50:07,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:50:07,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:50:07,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:50:07,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:50:07,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:50:07,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:50:07,340 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:50:07,341 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:50:07,341 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:50:07,341 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:50:07,341 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:50:07,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:50:07,342 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:50:07,342 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:50:07,343 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:50:07,343 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:50:07,343 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:50:07,344 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:50:07,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:50:07,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:50:07,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:50:07,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:50:07,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:50:07,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:50:07,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:50:07,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:50:07,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:50:07,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:50:07,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:50:07,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:50:07,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:50:07,348 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:50:07,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:50:07,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:50:07,349 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:50:07,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:50:07,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:50:07,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:50:07,350 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2022-11-20 20:50:07,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:50:07,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:50:07,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:50:07,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:50:07,665 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:50:07,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 20:50:10,803 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:50:11,406 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:50:11,406 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 20:50:11,452 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data/8dfbabee4/a1785ae4163e4bd0bdfe6dcb405445b6/FLAG3d05250fc [2022-11-20 20:50:11,472 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data/8dfbabee4/a1785ae4163e4bd0bdfe6dcb405445b6 [2022-11-20 20:50:11,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:50:11,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:50:11,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:50:11,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:50:11,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:50:11,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:50:11" (1/1) ... [2022-11-20 20:50:11,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9cc69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:11, skipping insertion in model container [2022-11-20 20:50:11,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:50:11" (1/1) ... [2022-11-20 20:50:11,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:50:11,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:50:12,232 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 20:50:12,241 INFO L158 Benchmark]: Toolchain (without parser) took 762.44ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 97.8MB in the end (delta: 18.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-20 20:50:12,242 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 70.4MB in the beginning and 70.3MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:50:12,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.24ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 97.8MB in the end (delta: 18.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-20 20:50:12,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 70.4MB in the beginning and 70.3MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.24ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 97.8MB in the end (delta: 18.9MB). Peak memory consumption was 31.5MB. 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- 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 20:50:14,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:50:14,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:50:14,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:50:14,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:50:14,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:50:14,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:50:14,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:50:14,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:50:14,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:50:14,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:50:14,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:50:14,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:50:14,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:50:14,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:50:14,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:50:14,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:50:14,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:50:14,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:50:14,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:50:14,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:50:14,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:50:14,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:50:14,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:50:14,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:50:14,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:50:14,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:50:14,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:50:14,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:50:14,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:50:14,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:50:14,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:50:14,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:50:14,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:50:14,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:50:14,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:50:14,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:50:14,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:50:14,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:50:14,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:50:14,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:50:14,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:50:14,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:50:14,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:50:14,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:50:14,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:50:14,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:50:14,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:50:14,587 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:50:14,588 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:50:14,588 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:50:14,588 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:50:14,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:50:14,589 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:50:14,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:50:14,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:50:14,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:50:14,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:50:14,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:50:14,591 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:50:14,591 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:50:14,591 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:50:14,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:50:14,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:50:14,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:50:14,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:50:14,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:50:14,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:50:14,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:50:14,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:50:14,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:50:14,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:50:14,593 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:50:14,593 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:50:14,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:50:14,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:50:14,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:50:14,594 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2022-11-20 20:50:14,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:50:14,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:50:14,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:50:14,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:50:14,985 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:50:14,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 20:50:18,002 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:50:18,682 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:50:18,683 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 20:50:18,731 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data/7228086bb/8d76b3cfccb94cc6b163904b211a94d2/FLAG4ee5c70da [2022-11-20 20:50:18,751 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/data/7228086bb/8d76b3cfccb94cc6b163904b211a94d2 [2022-11-20 20:50:18,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:50:18,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:50:18,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:50:18,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:50:18,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:50:18,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:50:18" (1/1) ... [2022-11-20 20:50:18,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4122ceb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:18, skipping insertion in model container [2022-11-20 20:50:18,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:50:18" (1/1) ... [2022-11-20 20:50:18,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:50:18,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:50:21,778 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-11-20 20:50:21,782 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-11-20 20:50:21,782 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-11-20 20:50:21,783 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-11-20 20:50:21,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:50:21,845 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:50:21,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:50:22,236 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-11-20 20:50:22,237 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-11-20 20:50:22,238 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-11-20 20:50:22,238 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-11-20 20:50:22,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:50:22,274 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:50:22,718 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-11-20 20:50:22,719 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-11-20 20:50:22,720 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-11-20 20:50:22,720 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_3db2ee10-d080-439f-ba3b-d822c1dd45e8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-11-20 20:50:22,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:50:23,050 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:50:23,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23 WrapperNode [2022-11-20 20:50:23,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:50:23,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:50:23,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:50:23,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:50:23,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,357 INFO L138 Inliner]: procedures = 432, calls = 1993, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 5084 [2022-11-20 20:50:23,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:50:23,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:50:23,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:50:23,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:50:23,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:50:23,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:50:23,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:50:23,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:50:23,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (1/1) ... [2022-11-20 20:50:23,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:50:23,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:50:23,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:50:23,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:50:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2022-11-20 20:50:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2022-11-20 20:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 20:50:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 20:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:50:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:50:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 20:50:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 20:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:50:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure fst_remove_one [2022-11-20 20:50:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_remove_one [2022-11-20 20:50:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 20:50:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 20:50:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:50:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:50:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 20:50:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 20:50:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 20:50:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 20:50:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-20 20:50:23,803 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-20 20:50:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 20:50:23,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 20:50:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2022-11-20 20:50:23,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2022-11-20 20:50:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 20:50:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 20:50:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure fst_close [2022-11-20 20:50:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_close [2022-11-20 20:50:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 20:50:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 20:50:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:50:23,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:50:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-20 20:50:23,805 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-20 20:50:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:50:23,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:50:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_timeout [2022-11-20 20:50:23,806 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_timeout [2022-11-20 20:50:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 20:50:23,806 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 20:50:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:50:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 20:50:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 20:50:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure fst_open [2022-11-20 20:50:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_open [2022-11-20 20:50:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:50:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:50:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:50:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2022-11-20 20:50:23,810 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2022-11-20 20:50:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 20:50:23,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 20:50:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 20:50:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 20:50:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 20:50:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 20:50:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 20:50:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 20:50:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:50:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:50:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-20 20:50:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-20 20:50:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 20:50:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 20:50:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2022-11-20 20:50:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2022-11-20 20:50:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 20:50:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 20:50:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:50:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:50:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 20:50:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 20:50:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 20:50:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 20:50:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 20:50:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 20:50:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:50:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:50:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:50:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 20:50:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 20:50:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 20:50:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 20:50:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_card_lock_of_fst_card_info [2022-11-20 20:50:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_card_lock_of_fst_card_info [2022-11-20 20:50:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:50:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2022-11-20 20:50:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2022-11-20 20:50:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:50:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:50:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:50:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 20:50:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 20:50:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:50:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:50:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 20:50:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 20:50:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 20:50:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-20 20:50:23,818 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-20 20:50:23,818 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2022-11-20 20:50:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2022-11-20 20:50:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 20:50:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 20:50:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 20:50:23,819 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 20:50:23,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 20:50:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 20:50:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 20:50:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 20:50:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 20:50:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 20:50:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 20:50:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-20 20:50:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-20 20:50:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-20 20:50:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-20 20:50:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:50:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:50:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:50:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:50:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:50:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 20:50:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:50:23,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:50:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:50:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:50:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:50:23,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:50:23,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 20:50:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 20:50:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 20:50:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 20:50:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 20:50:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 20:50:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 20:50:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 20:50:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 20:50:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 20:50:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:50:23,825 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-20 20:50:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-20 20:50:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:50:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-20 20:50:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-20 20:50:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:50:23,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:50:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:50:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:50:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:50:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 20:50:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 20:50:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-20 20:50:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-20 20:50:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 20:50:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 20:50:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:50:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:50:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-20 20:50:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-20 20:50:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 20:50:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 20:50:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2022-11-20 20:50:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2022-11-20 20:50:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 20:50:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 20:50:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 20:50:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 20:50:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:50:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:50:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_fst_work_q_lock [2022-11-20 20:50:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_fst_work_q_lock [2022-11-20 20:50:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 20:50:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 20:50:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2022-11-20 20:50:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2022-11-20 20:50:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:50:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 20:50:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:50:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:50:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:50:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:50:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 20:50:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 20:50:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-20 20:50:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-20 20:50:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure do_bottom_half_tx [2022-11-20 20:50:23,833 INFO L138 BoogieDeclarations]: Found implementation of procedure do_bottom_half_tx [2022-11-20 20:50:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2022-11-20 20:50:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2022-11-20 20:50:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:50:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:50:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-20 20:50:23,834 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-20 20:50:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-11-20 20:50:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-11-20 20:50:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 20:50:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 20:50:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 20:50:23,835 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 20:50:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-20 20:50:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-20 20:50:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2022-11-20 20:50:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2022-11-20 20:50:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-20 20:50:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-20 20:50:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 20:50:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 20:50:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-20 20:50:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-20 20:50:24,712 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:50:24,719 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:50:24,818 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:50:57,844 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 20:50:58,009 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:50:58,035 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:50:58,035 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:50:58,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:50:58 BoogieIcfgContainer [2022-11-20 20:50:58,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:50:58,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:50:58,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:50:58,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:50:58,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:50:18" (1/3) ... [2022-11-20 20:50:58,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620b336f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:50:58, skipping insertion in model container [2022-11-20 20:50:58,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:50:23" (2/3) ... [2022-11-20 20:50:58,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620b336f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:50:58, skipping insertion in model container [2022-11-20 20:50:58,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:50:58" (3/3) ... [2022-11-20 20:50:58,055 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 20:50:58,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:50:58,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 20:50:58,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:50:58,194 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@398d221d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:50:58,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 20:50:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 1818 states, 1237 states have (on average 1.2853678253839935) internal successors, (1590), 1251 states have internal predecessors, (1590), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-11-20 20:50:58,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-20 20:50:58,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:50:58,223 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:50:58,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:50:58,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:50:58,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1586425349, now seen corresponding path program 1 times [2022-11-20 20:50:58,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:50:58,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504788211] [2022-11-20 20:50:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:50:58,244 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 20:50:58,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:50:58,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:50:58,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:50:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:50:59,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:50:59,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:50:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 20:50:59,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:50:59,709 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:50:59,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504788211] [2022-11-20 20:50:59,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504788211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:50:59,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:50:59,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:50:59,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575384287] [2022-11-20 20:50:59,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:50:59,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:50:59,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:50:59,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:50:59,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:50:59,757 INFO L87 Difference]: Start difference. First operand has 1818 states, 1237 states have (on average 1.2853678253839935) internal successors, (1590), 1251 states have internal predecessors, (1590), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 20:51:00,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:00,304 INFO L93 Difference]: Finished difference Result 5318 states and 7604 transitions. [2022-11-20 20:51:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:00,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2022-11-20 20:51:00,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:00,346 INFO L225 Difference]: With dead ends: 5318 [2022-11-20 20:51:00,346 INFO L226 Difference]: Without dead ends: 3504 [2022-11-20 20:51:00,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 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 20:51:00,405 INFO L413 NwaCegarLoop]: 3003 mSDtfsCounter, 2426 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 5490 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:00,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 5490 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:51:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2022-11-20 20:51:00,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 3500. [2022-11-20 20:51:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 2399 states have (on average 1.2817840766986244) internal successors, (3075), 2426 states have internal predecessors, (3075), 922 states have call successors, (922), 177 states have call predecessors, (922), 176 states have return successors, (918), 914 states have call predecessors, (918), 918 states have call successors, (918) [2022-11-20 20:51:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 4915 transitions. [2022-11-20 20:51:00,714 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 4915 transitions. Word has length 83 [2022-11-20 20:51:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:00,715 INFO L495 AbstractCegarLoop]: Abstraction has 3500 states and 4915 transitions. [2022-11-20 20:51:00,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 20:51:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 4915 transitions. [2022-11-20 20:51:00,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 20:51:00,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:00,727 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:00,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:00,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:00,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:51:00,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:00,947 INFO L85 PathProgramCache]: Analyzing trace with hash 917190880, now seen corresponding path program 1 times [2022-11-20 20:51:00,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:00,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048660661] [2022-11-20 20:51:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:00,950 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 20:51:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:00,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:01,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:02,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:51:02,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 20:51:02,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:02,372 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:02,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048660661] [2022-11-20 20:51:02,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048660661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:02,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:02,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:51:02,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301545623] [2022-11-20 20:51:02,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:02,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:51:02,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:02,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:51:02,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:51:02,375 INFO L87 Difference]: Start difference. First operand 3500 states and 4915 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 20:51:03,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:03,026 INFO L93 Difference]: Finished difference Result 7729 states and 10885 transitions. [2022-11-20 20:51:03,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:03,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2022-11-20 20:51:03,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:03,051 INFO L225 Difference]: With dead ends: 7729 [2022-11-20 20:51:03,051 INFO L226 Difference]: Without dead ends: 4244 [2022-11-20 20:51:03,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 20:51:03,065 INFO L413 NwaCegarLoop]: 2872 mSDtfsCounter, 1765 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:03,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 5337 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:51:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4244 states. [2022-11-20 20:51:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4244 to 4218. [2022-11-20 20:51:03,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 2922 states have (on average 1.2919233401779604) internal successors, (3775), 2954 states have internal predecessors, (3775), 1076 states have call successors, (1076), 219 states have call predecessors, (1076), 217 states have return successors, (1072), 1065 states have call predecessors, (1072), 1072 states have call successors, (1072) [2022-11-20 20:51:03,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 5923 transitions. [2022-11-20 20:51:03,362 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 5923 transitions. Word has length 93 [2022-11-20 20:51:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:03,363 INFO L495 AbstractCegarLoop]: Abstraction has 4218 states and 5923 transitions. [2022-11-20 20:51:03,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 20:51:03,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 5923 transitions. [2022-11-20 20:51:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 20:51:03,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:03,366 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:03,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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)] Ended with exit code 0 [2022-11-20 20:51:03,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:03,579 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 20:51:03,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:03,579 INFO L85 PathProgramCache]: Analyzing trace with hash -418656966, now seen corresponding path program 1 times [2022-11-20 20:51:03,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:03,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943605196] [2022-11-20 20:51:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:03,582 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 20:51:03,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:03,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:03,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:04,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:51:04,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 20:51:04,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:04,775 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:04,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943605196] [2022-11-20 20:51:04,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943605196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:04,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:04,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:51:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875257237] [2022-11-20 20:51:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:04,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:51:04,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:51:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:51:04,777 INFO L87 Difference]: Start difference. First operand 4218 states and 5923 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, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:51:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:05,453 INFO L93 Difference]: Finished difference Result 11057 states and 15468 transitions. [2022-11-20 20:51:05,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:05,455 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, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2022-11-20 20:51:05,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:05,493 INFO L225 Difference]: With dead ends: 11057 [2022-11-20 20:51:05,494 INFO L226 Difference]: Without dead ends: 6854 [2022-11-20 20:51:05,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 20:51:05,514 INFO L413 NwaCegarLoop]: 2966 mSDtfsCounter, 2266 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 5443 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:05,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 5443 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:51:05,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2022-11-20 20:51:05,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6824. [2022-11-20 20:51:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6824 states, 4725 states have (on average 1.2802116402116401) internal successors, (6049), 4782 states have internal predecessors, (6049), 1721 states have call successors, (1721), 378 states have call predecessors, (1721), 375 states have return successors, (1717), 1696 states have call predecessors, (1717), 1717 states have call successors, (1717) [2022-11-20 20:51:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6824 states to 6824 states and 9487 transitions. [2022-11-20 20:51:05,967 INFO L78 Accepts]: Start accepts. Automaton has 6824 states and 9487 transitions. Word has length 91 [2022-11-20 20:51:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:05,968 INFO L495 AbstractCegarLoop]: Abstraction has 6824 states and 9487 transitions. [2022-11-20 20:51:05,968 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, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:51:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6824 states and 9487 transitions. [2022-11-20 20:51:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 20:51:05,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:05,970 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:05,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:06,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:06,196 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:51:06,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:06,196 INFO L85 PathProgramCache]: Analyzing trace with hash -246342366, now seen corresponding path program 1 times [2022-11-20 20:51:06,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:06,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095291099] [2022-11-20 20:51:06,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:06,198 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 20:51:06,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:06,198 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:06,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:07,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:51:07,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 20:51:07,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:07,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:07,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095291099] [2022-11-20 20:51:07,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095291099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:07,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:07,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:51:07,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838592727] [2022-11-20 20:51:07,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:07,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:51:07,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:51:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:51:07,420 INFO L87 Difference]: Start difference. First operand 6824 states and 9487 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, (12), 3 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 20:51:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:08,173 INFO L93 Difference]: Finished difference Result 16961 states and 23459 transitions. [2022-11-20 20:51:08,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:08,174 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, (12), 3 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2022-11-20 20:51:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:08,234 INFO L225 Difference]: With dead ends: 16961 [2022-11-20 20:51:08,234 INFO L226 Difference]: Without dead ends: 10152 [2022-11-20 20:51:08,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 20:51:08,259 INFO L413 NwaCegarLoop]: 2906 mSDtfsCounter, 1881 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 5398 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:08,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 5398 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:51:08,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10152 states. [2022-11-20 20:51:08,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10152 to 10122. [2022-11-20 20:51:08,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10122 states, 6991 states have (on average 1.274495780288943) internal successors, (8910), 7086 states have internal predecessors, (8910), 2508 states have call successors, (2508), 625 states have call predecessors, (2508), 620 states have return successors, (2510), 2455 states have call predecessors, (2510), 2504 states have call successors, (2510) [2022-11-20 20:51:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10122 states to 10122 states and 13928 transitions. [2022-11-20 20:51:08,910 INFO L78 Accepts]: Start accepts. Automaton has 10122 states and 13928 transitions. Word has length 95 [2022-11-20 20:51:08,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:08,911 INFO L495 AbstractCegarLoop]: Abstraction has 10122 states and 13928 transitions. [2022-11-20 20:51:08,912 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, (12), 3 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 20:51:08,912 INFO L276 IsEmpty]: Start isEmpty. Operand 10122 states and 13928 transitions. [2022-11-20 20:51:08,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-20 20:51:08,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:08,921 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:51:08,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:09,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:09,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:51:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:09,149 INFO L85 PathProgramCache]: Analyzing trace with hash -674569662, now seen corresponding path program 1 times [2022-11-20 20:51:09,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:09,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113519309] [2022-11-20 20:51:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:09,150 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 20:51:09,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:09,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:09,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:10,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:51:10,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 20:51:10,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:10,397 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:10,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113519309] [2022-11-20 20:51:10,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113519309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:10,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:10,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:51:10,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65094371] [2022-11-20 20:51:10,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:10,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:51:10,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:10,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:51:10,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:51:10,398 INFO L87 Difference]: Start difference. First operand 10122 states and 13928 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:51:11,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:11,676 INFO L93 Difference]: Finished difference Result 28995 states and 39859 transitions. [2022-11-20 20:51:11,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:11,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2022-11-20 20:51:11,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:11,781 INFO L225 Difference]: With dead ends: 28995 [2022-11-20 20:51:11,781 INFO L226 Difference]: Without dead ends: 18888 [2022-11-20 20:51:11,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 20:51:11,819 INFO L413 NwaCegarLoop]: 3257 mSDtfsCounter, 2398 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 5735 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:11,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 5735 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:51:11,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18888 states. [2022-11-20 20:51:13,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18888 to 18846. [2022-11-20 20:51:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18846 states, 13039 states have (on average 1.266124702814633) internal successors, (16509), 13229 states have internal predecessors, (16509), 4633 states have call successors, (4633), 1180 states have call predecessors, (4633), 1171 states have return successors, (4641), 4520 states have call predecessors, (4641), 4629 states have call successors, (4641) [2022-11-20 20:51:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18846 states to 18846 states and 25783 transitions. [2022-11-20 20:51:13,110 INFO L78 Accepts]: Start accepts. Automaton has 18846 states and 25783 transitions. Word has length 92 [2022-11-20 20:51:13,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:13,111 INFO L495 AbstractCegarLoop]: Abstraction has 18846 states and 25783 transitions. [2022-11-20 20:51:13,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:51:13,112 INFO L276 IsEmpty]: Start isEmpty. Operand 18846 states and 25783 transitions. [2022-11-20 20:51:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 20:51:13,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:13,114 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-11-20 20:51:13,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:13,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:13,336 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:51:13,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:13,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1266838149, now seen corresponding path program 1 times [2022-11-20 20:51:13,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:13,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446749233] [2022-11-20 20:51:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:13,338 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 20:51:13,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:13,343 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:13,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:14,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:51:14,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 20:51:14,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:14,642 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:14,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446749233] [2022-11-20 20:51:14,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446749233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:14,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:14,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:51:14,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840288583] [2022-11-20 20:51:14,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:14,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:51:14,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:14,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:51:14,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:51:14,644 INFO L87 Difference]: Start difference. First operand 18846 states and 25783 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:51:16,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:16,513 INFO L93 Difference]: Finished difference Result 52602 states and 71895 transitions. [2022-11-20 20:51:16,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:16,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2022-11-20 20:51:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:16,645 INFO L225 Difference]: With dead ends: 52602 [2022-11-20 20:51:16,646 INFO L226 Difference]: Without dead ends: 33771 [2022-11-20 20:51:16,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 20:51:16,695 INFO L413 NwaCegarLoop]: 3545 mSDtfsCounter, 2272 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 5989 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:16,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 5989 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:51:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33771 states. [2022-11-20 20:51:19,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33771 to 33729. [2022-11-20 20:51:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33729 states, 23313 states have (on average 1.2601123836486081) internal successors, (29377), 23707 states have internal predecessors, (29377), 8304 states have call successors, (8304), 2142 states have call predecessors, (8304), 2109 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 20:51:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33729 states to 33729 states and 46013 transitions. [2022-11-20 20:51:19,699 INFO L78 Accepts]: Start accepts. Automaton has 33729 states and 46013 transitions. Word has length 108 [2022-11-20 20:51:19,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:19,699 INFO L495 AbstractCegarLoop]: Abstraction has 33729 states and 46013 transitions. [2022-11-20 20:51:19,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 20:51:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 33729 states and 46013 transitions. [2022-11-20 20:51:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-20 20:51:19,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:19,703 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-11-20 20:51:19,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:19,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:19,916 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 20:51:19,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:19,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1651618579, now seen corresponding path program 1 times [2022-11-20 20:51:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:19,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279195444] [2022-11-20 20:51:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:19,918 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 20:51:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:19,920 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:19,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:20,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:51:20,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 20:51:20,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:20,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:20,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279195444] [2022-11-20 20:51:20,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279195444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:20,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:51:20,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:51:20,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641945378] [2022-11-20 20:51:20,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:20,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:51:20,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:20,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:51:20,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:51:20,972 INFO L87 Difference]: Start difference. First operand 33729 states and 46013 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 20:51:22,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:22,897 INFO L93 Difference]: Finished difference Result 67430 states and 92019 transitions. [2022-11-20 20:51:22,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:22,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2022-11-20 20:51:22,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:23,092 INFO L225 Difference]: With dead ends: 67430 [2022-11-20 20:51:23,092 INFO L226 Difference]: Without dead ends: 33793 [2022-11-20 20:51:23,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 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 20:51:23,194 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 1 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:23,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5054 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:51:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33793 states. [2022-11-20 20:51:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33793 to 33761. [2022-11-20 20:51:25,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 23345 states have (on average 1.2597558363675305) internal successors, (29409), 23739 states have internal predecessors, (29409), 8304 states have call successors, (8304), 2142 states have call predecessors, (8304), 2109 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 20:51:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 46045 transitions. [2022-11-20 20:51:25,649 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 46045 transitions. Word has length 150 [2022-11-20 20:51:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:25,650 INFO L495 AbstractCegarLoop]: Abstraction has 33761 states and 46045 transitions. [2022-11-20 20:51:25,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 20:51:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 46045 transitions. [2022-11-20 20:51:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 20:51:25,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:25,653 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-11-20 20:51:25,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:25,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:25,877 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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 20:51:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash -544011153, now seen corresponding path program 1 times [2022-11-20 20:51:25,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:25,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301109779] [2022-11-20 20:51:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:25,879 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 20:51:25,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:25,881 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:25,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:27,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:51:27,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 20:51:27,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:51:27,448 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 20:51:27,448 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:27,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301109779] [2022-11-20 20:51:27,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301109779] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:51:27,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1345118577] [2022-11-20 20:51:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:27,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:51:27,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:51:27,454 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:51:27,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-20 20:51:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:28,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:51:28,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-11-20 20:51:28,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:28,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1345118577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:28,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:51:28,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-20 20:51:28,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122751415] [2022-11-20 20:51:28,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:28,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:51:28,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:28,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:51:28,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:51:28,769 INFO L87 Difference]: Start difference. First operand 33761 states and 46045 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:51:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:31,603 INFO L93 Difference]: Finished difference Result 98853 states and 135016 transitions. [2022-11-20 20:51:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:51:31,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2022-11-20 20:51:31,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:31,908 INFO L225 Difference]: With dead ends: 98853 [2022-11-20 20:51:31,908 INFO L226 Difference]: Without dead ends: 65184 [2022-11-20 20:51:32,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:51:32,014 INFO L413 NwaCegarLoop]: 4645 mSDtfsCounter, 2379 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 7148 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:32,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2379 Valid, 7148 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:51:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65184 states. [2022-11-20 20:51:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65184 to 65180. [2022-11-20 20:51:35,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65180 states, 45190 states have (on average 1.2604558530648373) internal successors, (56960), 45816 states have internal predecessors, (56960), 15946 states have call successors, (15946), 4090 states have call predecessors, (15946), 4041 states have return successors, (16006), 15593 states have call predecessors, (16006), 15942 states have call successors, (16006) [2022-11-20 20:51:36,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65180 states to 65180 states and 88912 transitions. [2022-11-20 20:51:36,177 INFO L78 Accepts]: Start accepts. Automaton has 65180 states and 88912 transitions. Word has length 152 [2022-11-20 20:51:36,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:51:36,186 INFO L495 AbstractCegarLoop]: Abstraction has 65180 states and 88912 transitions. [2022-11-20 20:51:36,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:51:36,187 INFO L276 IsEmpty]: Start isEmpty. Operand 65180 states and 88912 transitions. [2022-11-20 20:51:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 20:51:36,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:51:36,189 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-11-20 20:51:36,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:36,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 20:51:36,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:36,590 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 20:51:36,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:51:36,590 INFO L85 PathProgramCache]: Analyzing trace with hash -403462543, now seen corresponding path program 1 times [2022-11-20 20:51:36,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:51:36,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182976567] [2022-11-20 20:51:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:36,592 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 20:51:36,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:51:36,594 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:36,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/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 20:51:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:37,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:51:37,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 20:51:37,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:51:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 20:51:37,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:51:37,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182976567] [2022-11-20 20:51:37,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182976567] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:51:37,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1793852611] [2022-11-20 20:51:37,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:51:37,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:51:37,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:51:37,951 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:51:37,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db2ee10-d080-439f-ba3b-d822c1dd45e8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-20 20:51:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:51:39,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:51:39,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:51:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-20 20:51:39,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:51:39,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1793852611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:51:39,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:51:39,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9 [2022-11-20 20:51:39,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684221473] [2022-11-20 20:51:39,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:51:39,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:51:39,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:51:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:51:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:51:39,838 INFO L87 Difference]: Start difference. First operand 65180 states and 88912 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:51:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:51:43,258 INFO L93 Difference]: Finished difference Result 65186 states and 88917 transitions. [2022-11-20 20:51:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:51:43,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 152 [2022-11-20 20:51:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:51:43,444 INFO L225 Difference]: With dead ends: 65186 [2022-11-20 20:51:43,444 INFO L226 Difference]: Without dead ends: 65184 [2022-11-20 20:51:43,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-20 20:51:43,467 INFO L413 NwaCegarLoop]: 2527 mSDtfsCounter, 2448 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 7568 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:51:43,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 7568 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:51:43,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65184 states.