./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b --- 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 20:29:46,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:29:47,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:29:47,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:29:47,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:29:47,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:29:47,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:29:47,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:29:47,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:29:47,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:29:47,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:29:47,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:29:47,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:29:47,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:29:47,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:29:47,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:29:47,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:29:47,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:29:47,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:29:47,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:29:47,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:29:47,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:29:47,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:29:47,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:29:47,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:29:47,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:29:47,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:29:47,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:29:47,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:29:47,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:29:47,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:29:47,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:29:47,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:29:47,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:29:47,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:29:47,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:29:47,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:29:47,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:29:47,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:29:47,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:29:47,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:29:47,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:29:47,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:29:47,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:29:47,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:29:47,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:29:47,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:29:47,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:29:47,195 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:29:47,195 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:29:47,196 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:29:47,196 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:29:47,197 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:29:47,198 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:29:47,198 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:29:47,199 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:29:47,199 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:29:47,199 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:29:47,200 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:29:47,200 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:29:47,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:29:47,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:29:47,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:29:47,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:29:47,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:29:47,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:29:47,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:29:47,204 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:29:47,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:29:47,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:29:47,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:29:47,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:29:47,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:29:47,208 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:29:47,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:29:47,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:29:47,209 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:29:47,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:29:47,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:29:47,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:29:47,210 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b [2022-11-20 20:29:47,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:29:47,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:29:47,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:29:47,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:29:47,637 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:29:47,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2022-11-20 20:29:51,230 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:29:52,081 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:29:52,082 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2022-11-20 20:29:52,145 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data/76519db02/1663c8a1a6bb47469c4fb922310592db/FLAG11fdd2c29 [2022-11-20 20:29:52,164 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data/76519db02/1663c8a1a6bb47469c4fb922310592db [2022-11-20 20:29:52,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:29:52,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:29:52,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:29:52,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:29:52,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:29:52,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:29:52" (1/1) ... [2022-11-20 20:29:52,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4273c57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:52, skipping insertion in model container [2022-11-20 20:29:52,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:29:52" (1/1) ... [2022-11-20 20:29:52,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:29:52,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:29:53,221 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 20:29:53,235 INFO L158 Benchmark]: Toolchain (without parser) took 1063.83ms. Allocated memory is still 192.9MB. Free memory was 132.5MB in the beginning and 124.9MB in the end (delta: 7.6MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2022-11-20 20:29:53,236 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 138.4MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:29:53,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1060.75ms. Allocated memory is still 192.9MB. Free memory was 131.9MB in the beginning and 124.9MB in the end (delta: 7.1MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2022-11-20 20:29:53,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 138.4MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1060.75ms. Allocated memory is still 192.9MB. Free memory was 131.9MB in the beginning and 124.9MB in the end (delta: 7.1MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b --- 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 20:29:56,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:29:56,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:29:56,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:29:56,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:29:56,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:29:56,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:29:56,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:29:56,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:29:56,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:29:56,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:29:56,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:29:56,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:29:56,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:29:56,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:29:56,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:29:56,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:29:56,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:29:56,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:29:56,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:29:56,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:29:56,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:29:56,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:29:56,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:29:56,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:29:56,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:29:56,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:29:56,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:29:56,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:29:56,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:29:56,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:29:56,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:29:56,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:29:56,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:29:56,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:29:56,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:29:56,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:29:56,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:29:56,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:29:56,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:29:56,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:29:56,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:29:56,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:29:56,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:29:56,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:29:56,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:29:56,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:29:56,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:29:56,413 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:29:56,413 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:29:56,414 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:29:56,414 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:29:56,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:29:56,416 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:29:56,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:29:56,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:29:56,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:29:56,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:29:56,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:29:56,419 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:29:56,419 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:29:56,419 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:29:56,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:29:56,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:29:56,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:29:56,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:29:56,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:29:56,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:29:56,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:29:56,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:29:56,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:29:56,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:29:56,423 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:29:56,423 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:29:56,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:29:56,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:29:56,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:29:56,425 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b [2022-11-20 20:29:56,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:29:56,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:29:56,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:29:56,953 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:29:56,954 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:29:56,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2022-11-20 20:30:00,768 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:30:01,739 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:30:01,740 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2022-11-20 20:30:01,829 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data/b5dcb2d7c/4259b1d621754a97bd4437d399f05690/FLAGd004fa7d5 [2022-11-20 20:30:01,862 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/data/b5dcb2d7c/4259b1d621754a97bd4437d399f05690 [2022-11-20 20:30:01,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:30:01,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:30:01,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:30:01,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:30:01,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:30:01,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:30:01" (1/1) ... [2022-11-20 20:30:01,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27949332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:01, skipping insertion in model container [2022-11-20 20:30:01,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:30:01" (1/1) ... [2022-11-20 20:30:01,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:30:02,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:30:06,826 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2022-11-20 20:30:06,831 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2022-11-20 20:30:06,832 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2022-11-20 20:30:06,833 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2022-11-20 20:30:06,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:30:06,918 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:30:07,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:30:07,782 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2022-11-20 20:30:07,783 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2022-11-20 20:30:07,784 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2022-11-20 20:30:07,785 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2022-11-20 20:30:07,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:30:07,844 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:30:08,460 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2022-11-20 20:30:08,461 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_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2022-11-20 20:30:08,462 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2022-11-20 20:30:08,462 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2022-11-20 20:30:08,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:30:08,844 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:30:08,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08 WrapperNode [2022-11-20 20:30:08,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:30:08,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:30:08,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:30:08,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:30:08,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,259 INFO L138 Inliner]: procedures = 527, calls = 2570, calls flagged for inlining = 248, calls inlined = 216, statements flattened = 5209 [2022-11-20 20:30:09,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:30:09,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:30:09,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:30:09,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:30:09,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:30:09,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:30:09,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:30:09,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:30:09,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (1/1) ... [2022-11-20 20:30:09,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:30:09,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:30:09,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:30:09,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:30:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2022-11-20 20:30:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2022-11-20 20:30:09,733 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-20 20:30:09,734 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 20:30:09,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 20:30:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2022-11-20 20:30:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2022-11-20 20:30:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 20:30:09,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 20:30:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:30:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:30:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 20:30:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 20:30:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2022-11-20 20:30:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2022-11-20 20:30:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 20:30:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 20:30:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:30:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:30:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2022-11-20 20:30:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2022-11-20 20:30:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 20:30:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 20:30:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:30:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:30:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2022-11-20 20:30:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2022-11-20 20:30:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 20:30:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 20:30:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 20:30:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 20:30:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 20:30:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 20:30:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 20:30:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 20:30:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 20:30:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 20:30:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 20:30:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 20:30:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 20:30:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 20:30:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:30:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:30:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 20:30:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 20:30:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 20:30:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 20:30:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:30:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:30:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2022-11-20 20:30:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2022-11-20 20:30:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 20:30:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 20:30:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-20 20:30:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-20 20:30:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:30:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 20:30:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 20:30:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-20 20:30:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-20 20:30:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 20:30:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:30:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:30:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:30:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-20 20:30:09,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-20 20:30:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-11-20 20:30:09,758 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-11-20 20:30:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 20:30:09,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 20:30:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2022-11-20 20:30:09,760 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2022-11-20 20:30:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2022-11-20 20:30:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2022-11-20 20:30:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 20:30:09,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 20:30:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-20 20:30:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-20 20:30:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2022-11-20 20:30:09,762 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2022-11-20 20:30:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:30:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:30:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 20:30:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 20:30:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 20:30:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 20:30:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2022-11-20 20:30:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2022-11-20 20:30:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 20:30:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 20:30:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 20:30:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 20:30:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 20:30:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 20:30:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:30:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:30:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2022-11-20 20:30:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2022-11-20 20:30:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2022-11-20 20:30:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2022-11-20 20:30:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-20 20:30:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-20 20:30:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:30:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 20:30:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:30:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 20:30:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 20:30:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 20:30:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 20:30:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-20 20:30:09,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-20 20:30:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:30:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2022-11-20 20:30:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2022-11-20 20:30:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:30:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:30:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 20:30:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 20:30:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:30:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 20:30:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 20:30:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:30:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:30:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 20:30:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 20:30:09,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 20:30:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2022-11-20 20:30:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2022-11-20 20:30:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 20:30:09,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 20:30:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2022-11-20 20:30:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2022-11-20 20:30:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-20 20:30:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-20 20:30:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 20:30:09,791 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 20:30:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 20:30:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 20:30:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 20:30:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 20:30:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 20:30:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 20:30:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2022-11-20 20:30:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2022-11-20 20:30:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 20:30:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-20 20:30:09,796 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-20 20:30:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 20:30:09,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 20:30:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2022-11-20 20:30:09,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2022-11-20 20:30:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:30:09,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:30:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:30:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:30:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:30:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 20:30:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:30:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:30:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:30:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:30:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2022-11-20 20:30:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2022-11-20 20:30:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-20 20:30:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-20 20:30:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:30:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:30:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 20:30:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 20:30:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2022-11-20 20:30:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2022-11-20 20:30:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 20:30:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 20:30:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-20 20:30:09,805 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-20 20:30:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2022-11-20 20:30:09,806 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2022-11-20 20:30:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 20:30:09,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 20:30:09,806 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2022-11-20 20:30:09,806 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2022-11-20 20:30:09,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 20:30:09,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 20:30:09,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 20:30:09,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 20:30:09,807 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-20 20:30:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-20 20:30:09,808 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2022-11-20 20:30:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2022-11-20 20:30:09,808 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 20:30:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 20:30:09,809 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 20:30:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 20:30:09,809 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-11-20 20:30:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-11-20 20:30:09,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:30:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2022-11-20 20:30:09,810 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2022-11-20 20:30:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 20:30:09,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 20:30:09,810 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2022-11-20 20:30:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2022-11-20 20:30:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:30:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:30:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:30:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:30:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:30:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:30:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2022-11-20 20:30:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2022-11-20 20:30:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 20:30:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 20:30:09,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 20:30:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 20:30:09,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2022-11-20 20:30:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2022-11-20 20:30:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:30:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:30:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 20:30:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 20:30:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2022-11-20 20:30:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2022-11-20 20:30:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2022-11-20 20:30:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2022-11-20 20:30:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 20:30:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 20:30:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-20 20:30:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-20 20:30:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2022-11-20 20:30:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2022-11-20 20:30:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2022-11-20 20:30:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2022-11-20 20:30:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 20:30:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 20:30:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 20:30:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 20:30:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 20:30:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 20:30:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 20:30:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 20:30:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2022-11-20 20:30:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2022-11-20 20:30:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2022-11-20 20:30:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2022-11-20 20:30:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:30:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 20:30:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:30:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:30:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2022-11-20 20:30:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2022-11-20 20:30:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:30:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:30:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2022-11-20 20:30:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2022-11-20 20:30:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2022-11-20 20:30:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2022-11-20 20:30:09,828 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-20 20:30:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-20 20:30:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 20:30:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 20:30:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2022-11-20 20:30:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2022-11-20 20:30:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 20:30:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 20:30:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-20 20:30:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-20 20:30:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2022-11-20 20:30:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2022-11-20 20:30:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2022-11-20 20:30:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2022-11-20 20:30:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2022-11-20 20:30:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2022-11-20 20:30:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:30:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:30:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-20 20:30:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-20 20:30:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-20 20:30:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-20 20:30:09,832 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2022-11-20 20:30:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2022-11-20 20:30:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2022-11-20 20:30:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2022-11-20 20:30:09,833 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 20:30:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 20:30:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2022-11-20 20:30:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2022-11-20 20:30:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 20:30:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 20:30:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-20 20:30:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-20 20:30:11,463 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:30:11,475 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:30:14,732 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:30:46,392 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 20:30:46,585 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:30:46,612 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:30:46,612 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:30:46,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:30:46 BoogieIcfgContainer [2022-11-20 20:30:46,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:30:46,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:30:46,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:30:46,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:30:46,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:30:01" (1/3) ... [2022-11-20 20:30:46,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b7b8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:30:46, skipping insertion in model container [2022-11-20 20:30:46,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:30:08" (2/3) ... [2022-11-20 20:30:46,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b7b8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:30:46, skipping insertion in model container [2022-11-20 20:30:46,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:30:46" (3/3) ... [2022-11-20 20:30:46,631 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2022-11-20 20:30:46,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:30:46,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 20:30:46,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:30:46,819 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;@759135f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:30:46,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 20:30:46,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 1573 states have (on average 1.2644628099173554) internal successors, (1989), 1610 states have internal predecessors, (1989), 749 states have call successors, (749), 129 states have call predecessors, (749), 128 states have return successors, (743), 734 states have call predecessors, (743), 743 states have call successors, (743) [2022-11-20 20:30:46,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 20:30:46,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:46,892 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:46,893 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 20:30:46,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:46,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1319986418, now seen corresponding path program 1 times [2022-11-20 20:30:46,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:46,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333020248] [2022-11-20 20:30:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:46,933 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 20:30:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:46,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:46,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:49,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:30:49,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:49,237 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 20:30:49,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:49,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:49,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333020248] [2022-11-20 20:30:49,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333020248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:49,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:49,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:49,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93036893] [2022-11-20 20:30:49,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:49,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:30:49,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:49,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:30:49,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:30:49,310 INFO L87 Difference]: Start difference. First operand has 2453 states, 1573 states have (on average 1.2644628099173554) internal successors, (1989), 1610 states have internal predecessors, (1989), 749 states have call successors, (749), 129 states have call predecessors, (749), 128 states have return successors, (743), 734 states have call predecessors, (743), 743 states have call successors, (743) 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 20:30:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:50,174 INFO L93 Difference]: Finished difference Result 7195 states and 10405 transitions. [2022-11-20 20:30:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:30:50,177 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 193 [2022-11-20 20:30:50,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:50,249 INFO L225 Difference]: With dead ends: 7195 [2022-11-20 20:30:50,249 INFO L226 Difference]: Without dead ends: 4767 [2022-11-20 20:30:50,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 191 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 20:30:50,283 INFO L413 NwaCegarLoop]: 4177 mSDtfsCounter, 3319 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3319 SdHoareTripleChecker+Valid, 7592 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:50,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3319 Valid, 7592 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:30:50,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2022-11-20 20:30:50,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4763. [2022-11-20 20:30:50,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3069 states have (on average 1.2596937113066144) internal successors, (3866), 3142 states have internal predecessors, (3866), 1439 states have call successors, (1439), 253 states have call predecessors, (1439), 252 states have return successors, (1435), 1417 states have call predecessors, (1435), 1435 states have call successors, (1435) [2022-11-20 20:30:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6740 transitions. [2022-11-20 20:30:50,869 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6740 transitions. Word has length 193 [2022-11-20 20:30:50,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:50,874 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6740 transitions. [2022-11-20 20:30:50,875 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 20:30:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6740 transitions. [2022-11-20 20:30:50,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-20 20:30:50,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:50,891 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:50,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:51,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:51,107 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 20:30:51,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:51,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1109709988, now seen corresponding path program 1 times [2022-11-20 20:30:51,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:51,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008494144] [2022-11-20 20:30:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:51,112 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 20:30:51,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:51,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:51,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:53,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:30:53,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 20:30:53,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:53,315 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:53,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008494144] [2022-11-20 20:30:53,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008494144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:53,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:53,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:53,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808677250] [2022-11-20 20:30:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:53,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:30:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:53,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:30:53,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:30:53,319 INFO L87 Difference]: Start difference. First operand 4763 states and 6740 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 20:30:54,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:54,171 INFO L93 Difference]: Finished difference Result 10536 states and 14896 transitions. [2022-11-20 20:30:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:30:54,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 204 [2022-11-20 20:30:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:54,221 INFO L225 Difference]: With dead ends: 10536 [2022-11-20 20:30:54,222 INFO L226 Difference]: Without dead ends: 5808 [2022-11-20 20:30:54,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 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 20:30:54,248 INFO L413 NwaCegarLoop]: 3959 mSDtfsCounter, 2406 mSDsluCounter, 3386 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 7345 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:54,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 7345 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:30:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5808 states. [2022-11-20 20:30:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 5783. [2022-11-20 20:30:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5783 states, 3759 states have (on average 1.2623038042032455) internal successors, (4745), 3842 states have internal predecessors, (4745), 1700 states have call successors, (1700), 323 states have call predecessors, (1700), 321 states have return successors, (1696), 1674 states have call predecessors, (1696), 1696 states have call successors, (1696) [2022-11-20 20:30:54,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 8141 transitions. [2022-11-20 20:30:54,839 INFO L78 Accepts]: Start accepts. Automaton has 5783 states and 8141 transitions. Word has length 204 [2022-11-20 20:30:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:54,840 INFO L495 AbstractCegarLoop]: Abstraction has 5783 states and 8141 transitions. [2022-11-20 20:30:54,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 20:30:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5783 states and 8141 transitions. [2022-11-20 20:30:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-20 20:30:54,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:54,847 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:54,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:55,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:55,063 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 20:30:55,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:55,064 INFO L85 PathProgramCache]: Analyzing trace with hash 563261165, now seen corresponding path program 1 times [2022-11-20 20:30:55,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:55,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841800526] [2022-11-20 20:30:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:55,068 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 20:30:55,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:55,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:55,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:56,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1543 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:30:56,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:56,947 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2022-11-20 20:30:56,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:56,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:56,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841800526] [2022-11-20 20:30:56,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841800526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:56,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:56,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:56,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126444619] [2022-11-20 20:30:56,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:56,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:30:56,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:56,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:30:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:30:56,958 INFO L87 Difference]: Start difference. First operand 5783 states and 8141 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 20:30:57,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:57,759 INFO L93 Difference]: Finished difference Result 13424 states and 18807 transitions. [2022-11-20 20:30:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:30:57,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 202 [2022-11-20 20:30:57,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:57,812 INFO L225 Difference]: With dead ends: 13424 [2022-11-20 20:30:57,812 INFO L226 Difference]: Without dead ends: 7676 [2022-11-20 20:30:57,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 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 20:30:57,842 INFO L413 NwaCegarLoop]: 4045 mSDtfsCounter, 2584 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 7395 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:57,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 7395 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:30:57,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7676 states. [2022-11-20 20:30:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7676 to 7649. [2022-11-20 20:30:58,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7649 states, 4900 states have (on average 1.2495918367346939) internal successors, (6123), 5018 states have internal predecessors, (6123), 2273 states have call successors, (2273), 478 states have call predecessors, (2273), 473 states have return successors, (2270), 2224 states have call predecessors, (2270), 2269 states have call successors, (2270) [2022-11-20 20:30:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7649 states to 7649 states and 10666 transitions. [2022-11-20 20:30:58,414 INFO L78 Accepts]: Start accepts. Automaton has 7649 states and 10666 transitions. Word has length 202 [2022-11-20 20:30:58,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:58,416 INFO L495 AbstractCegarLoop]: Abstraction has 7649 states and 10666 transitions. [2022-11-20 20:30:58,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 20:30:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 7649 states and 10666 transitions. [2022-11-20 20:30:58,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-20 20:30:58,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:58,423 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:58,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:58,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:58,653 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 20:30:58,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:58,654 INFO L85 PathProgramCache]: Analyzing trace with hash -555994007, now seen corresponding path program 1 times [2022-11-20 20:30:58,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:58,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706618724] [2022-11-20 20:30:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:58,657 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 20:30:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:58,659 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:30:58,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:00,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1552 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:31:00,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 948 trivial. 0 not checked. [2022-11-20 20:31:00,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:00,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:00,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706618724] [2022-11-20 20:31:00,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706618724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:00,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:00,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:00,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237700063] [2022-11-20 20:31:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:00,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:31:00,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:00,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:31:00,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:31:00,547 INFO L87 Difference]: Start difference. First operand 7649 states and 10666 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 20:31:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:01,483 INFO L93 Difference]: Finished difference Result 20408 states and 28441 transitions. [2022-11-20 20:31:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:31:01,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 213 [2022-11-20 20:31:01,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:01,598 INFO L225 Difference]: With dead ends: 20408 [2022-11-20 20:31:01,598 INFO L226 Difference]: Without dead ends: 12794 [2022-11-20 20:31:01,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 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 20:31:01,642 INFO L413 NwaCegarLoop]: 4104 mSDtfsCounter, 3282 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 7363 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:01,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3282 Valid, 7363 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:31:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12794 states. [2022-11-20 20:31:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12794 to 12765. [2022-11-20 20:31:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12765 states, 8283 states have (on average 1.2530484124109622) internal successors, (10379), 8476 states have internal predecessors, (10379), 3697 states have call successors, (3697), 797 states have call predecessors, (3697), 782 states have return successors, (3702), 3604 states have call predecessors, (3702), 3693 states have call successors, (3702) [2022-11-20 20:31:02,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12765 states to 12765 states and 17778 transitions. [2022-11-20 20:31:02,649 INFO L78 Accepts]: Start accepts. Automaton has 12765 states and 17778 transitions. Word has length 213 [2022-11-20 20:31:02,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:02,650 INFO L495 AbstractCegarLoop]: Abstraction has 12765 states and 17778 transitions. [2022-11-20 20:31:02,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 20:31:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 12765 states and 17778 transitions. [2022-11-20 20:31:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-20 20:31:02,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:02,656 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:31:02,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:02,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:02,882 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 20:31:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:02,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1446251707, now seen corresponding path program 1 times [2022-11-20 20:31:02,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016763102] [2022-11-20 20:31:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:02,885 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 20:31:02,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:02,886 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:02,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:04,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:31:04,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2022-11-20 20:31:04,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:04,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:04,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016763102] [2022-11-20 20:31:04,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016763102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:04,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:04,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398872045] [2022-11-20 20:31:04,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:04,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:31:04,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:04,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:31:04,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:31:04,952 INFO L87 Difference]: Start difference. First operand 12765 states and 17778 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 20:31:06,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:06,846 INFO L93 Difference]: Finished difference Result 37493 states and 52246 transitions. [2022-11-20 20:31:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:31:06,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 221 [2022-11-20 20:31:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:07,011 INFO L225 Difference]: With dead ends: 37493 [2022-11-20 20:31:07,011 INFO L226 Difference]: Without dead ends: 24763 [2022-11-20 20:31:07,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 20:31:07,154 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3316 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3316 SdHoareTripleChecker+Valid, 7683 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:07,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3316 Valid, 7683 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:31:07,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24763 states. [2022-11-20 20:31:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24763 to 24722. [2022-11-20 20:31:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24722 states, 16018 states have (on average 1.2513422399800225) internal successors, (20044), 16418 states have internal predecessors, (20044), 7183 states have call successors, (7183), 1547 states have call predecessors, (7183), 1518 states have return successors, (7197), 6982 states have call predecessors, (7197), 7179 states have call successors, (7197) [2022-11-20 20:31:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24722 states to 24722 states and 34424 transitions. [2022-11-20 20:31:09,118 INFO L78 Accepts]: Start accepts. Automaton has 24722 states and 34424 transitions. Word has length 221 [2022-11-20 20:31:09,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:09,124 INFO L495 AbstractCegarLoop]: Abstraction has 24722 states and 34424 transitions. [2022-11-20 20:31:09,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 20:31:09,124 INFO L276 IsEmpty]: Start isEmpty. Operand 24722 states and 34424 transitions. [2022-11-20 20:31:09,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-20 20:31:09,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:09,130 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:09,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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)] Ended with exit code 0 [2022-11-20 20:31:09,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:09,343 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 20:31:09,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash 449031083, now seen corresponding path program 1 times [2022-11-20 20:31:09,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:09,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956055566] [2022-11-20 20:31:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:09,346 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 20:31:09,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:09,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:09,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:11,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:31:11,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2022-11-20 20:31:11,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:11,203 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:11,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956055566] [2022-11-20 20:31:11,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956055566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:11,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:11,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:11,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750314573] [2022-11-20 20:31:11,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:11,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:31:11,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:11,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:31:11,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:31:11,206 INFO L87 Difference]: Start difference. First operand 24722 states and 34424 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 20:31:14,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:14,523 INFO L93 Difference]: Finished difference Result 72869 states and 101563 transitions. [2022-11-20 20:31:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:31:14,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 249 [2022-11-20 20:31:14,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:14,844 INFO L225 Difference]: With dead ends: 72869 [2022-11-20 20:31:14,845 INFO L226 Difference]: Without dead ends: 48325 [2022-11-20 20:31:14,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 247 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 20:31:14,947 INFO L413 NwaCegarLoop]: 4508 mSDtfsCounter, 3283 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3283 SdHoareTripleChecker+Valid, 7932 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 20:31:14,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3283 Valid, 7932 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:31:15,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48325 states. [2022-11-20 20:31:19,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48325 to 48321. [2022-11-20 20:31:19,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48321 states, 31322 states have (on average 1.2513249473213715) internal successors, (39194), 32048 states have internal predecessors, (39194), 14027 states have call successors, (14027), 3018 states have call predecessors, (14027), 2969 states have return successors, (14059), 13706 states have call predecessors, (14059), 14023 states have call successors, (14059) [2022-11-20 20:31:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48321 states to 48321 states and 67280 transitions. [2022-11-20 20:31:19,527 INFO L78 Accepts]: Start accepts. Automaton has 48321 states and 67280 transitions. Word has length 249 [2022-11-20 20:31:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:19,528 INFO L495 AbstractCegarLoop]: Abstraction has 48321 states and 67280 transitions. [2022-11-20 20:31:19,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 20:31:19,529 INFO L276 IsEmpty]: Start isEmpty. Operand 48321 states and 67280 transitions. [2022-11-20 20:31:19,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-20 20:31:19,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:19,536 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:19,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:20,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:20,075 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 20:31:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash 589579693, now seen corresponding path program 1 times [2022-11-20 20:31:20,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:20,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665038673] [2022-11-20 20:31:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:20,078 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 20:31:20,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:20,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:20,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:21,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:21,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2022-11-20 20:31:22,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:22,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:22,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665038673] [2022-11-20 20:31:22,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665038673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:22,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:22,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:31:22,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268691554] [2022-11-20 20:31:22,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:22,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:31:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:31:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:22,980 INFO L87 Difference]: Start difference. First operand 48321 states and 67280 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 20:31:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:26,228 INFO L93 Difference]: Finished difference Result 48327 states and 67285 transitions. [2022-11-20 20:31:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:31:26,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 249 [2022-11-20 20:31:26,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:26,507 INFO L225 Difference]: With dead ends: 48327 [2022-11-20 20:31:26,507 INFO L226 Difference]: Without dead ends: 48325 [2022-11-20 20:31:26,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:31:26,533 INFO L413 NwaCegarLoop]: 3448 mSDtfsCounter, 3352 mSDsluCounter, 6884 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3353 SdHoareTripleChecker+Valid, 10332 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:26,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3353 Valid, 10332 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:31:26,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48325 states. [2022-11-20 20:31:30,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48325 to 48325. [2022-11-20 20:31:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48325 states, 31325 states have (on average 1.2513008778930568) internal successors, (39197), 32051 states have internal predecessors, (39197), 14027 states have call successors, (14027), 3019 states have call predecessors, (14027), 2970 states have return successors, (14059), 13706 states have call predecessors, (14059), 14023 states have call successors, (14059) [2022-11-20 20:31:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48325 states to 48325 states and 67283 transitions. [2022-11-20 20:31:31,125 INFO L78 Accepts]: Start accepts. Automaton has 48325 states and 67283 transitions. Word has length 249 [2022-11-20 20:31:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:31,126 INFO L495 AbstractCegarLoop]: Abstraction has 48325 states and 67283 transitions. [2022-11-20 20:31:31,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 20:31:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 48325 states and 67283 transitions. [2022-11-20 20:31:31,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-20 20:31:31,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:31,138 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:31,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:31,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:31,363 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 20:31:31,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 636550757, now seen corresponding path program 1 times [2022-11-20 20:31:31,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:31,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142786820] [2022-11-20 20:31:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:31,366 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 20:31:31,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:31,371 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:31,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:33,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1609 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:33,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2022-11-20 20:31:34,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:31:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2022-11-20 20:31:34,890 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:34,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142786820] [2022-11-20 20:31:34,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142786820] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:31:34,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:31:34,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 20:31:34,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82640274] [2022-11-20 20:31:34,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:34,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:31:34,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:34,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:31:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:31:34,893 INFO L87 Difference]: Start difference. First operand 48325 states and 67283 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 20:31:38,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:38,557 INFO L93 Difference]: Finished difference Result 48331 states and 67288 transitions. [2022-11-20 20:31:38,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:31:38,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 254 [2022-11-20 20:31:38,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:38,844 INFO L225 Difference]: With dead ends: 48331 [2022-11-20 20:31:38,844 INFO L226 Difference]: Without dead ends: 48329 [2022-11-20 20:31:38,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:31:38,873 INFO L413 NwaCegarLoop]: 3451 mSDtfsCounter, 3376 mSDsluCounter, 6883 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3386 SdHoareTripleChecker+Valid, 10334 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:38,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3386 Valid, 10334 Invalid, 20 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:31:38,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48329 states. [2022-11-20 20:31:42,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48329 to 48329. [2022-11-20 20:31:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48329 states, 31328 states have (on average 1.251276813074566) internal successors, (39200), 32054 states have internal predecessors, (39200), 14027 states have call successors, (14027), 3020 states have call predecessors, (14027), 2971 states have return successors, (14059), 13706 states have call predecessors, (14059), 14023 states have call successors, (14059) [2022-11-20 20:31:43,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48329 states to 48329 states and 67286 transitions. [2022-11-20 20:31:43,239 INFO L78 Accepts]: Start accepts. Automaton has 48329 states and 67286 transitions. Word has length 254 [2022-11-20 20:31:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:43,240 INFO L495 AbstractCegarLoop]: Abstraction has 48329 states and 67286 transitions. [2022-11-20 20:31:43,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 20:31:43,241 INFO L276 IsEmpty]: Start isEmpty. Operand 48329 states and 67286 transitions. [2022-11-20 20:31:43,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-20 20:31:43,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:43,248 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 15, 15, 15, 15, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:31:43,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:43,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:43,462 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 20:31:43,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:43,463 INFO L85 PathProgramCache]: Analyzing trace with hash 946868333, now seen corresponding path program 1 times [2022-11-20 20:31:43,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:43,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210722888] [2022-11-20 20:31:43,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:43,465 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 20:31:43,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:43,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 20:31:43,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c74b39d-3997-45fb-b4ab-db5dbd992f7b/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 (10)] Waiting until timeout for monitored process [2022-11-20 20:31:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:45,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:45,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1181 trivial. 0 not checked. [2022-11-20 20:31:46,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:31:46,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1181 trivial. 0 not checked. [2022-11-20 20:31:46,914 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:46,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210722888] [2022-11-20 20:31:46,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210722888] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 20:31:46,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:31:46,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 20:31:46,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805132042] [2022-11-20 20:31:46,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:46,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:31:46,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:46,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:31:46,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:31:46,916 INFO L87 Difference]: Start difference. First operand 48329 states and 67286 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 20:31:51,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:51,309 INFO L93 Difference]: Finished difference Result 48335 states and 67291 transitions. [2022-11-20 20:31:51,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:31:51,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 259 [2022-11-20 20:31:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:51,567 INFO L225 Difference]: With dead ends: 48335 [2022-11-20 20:31:51,568 INFO L226 Difference]: Without dead ends: 48333 [2022-11-20 20:31:51,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:31:51,595 INFO L413 NwaCegarLoop]: 3451 mSDtfsCounter, 3376 mSDsluCounter, 6883 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3385 SdHoareTripleChecker+Valid, 10334 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:51,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3385 Valid, 10334 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:51,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48333 states.