./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.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_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e --- 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 20:28:56,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:28:56,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:28:56,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:28:56,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:28:56,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:28:56,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:28:56,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:28:56,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:28:56,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:28:56,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:28:56,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:28:56,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:28:56,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:28:56,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:28:56,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:28:56,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:28:56,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:28:56,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:28:56,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:28:56,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:28:56,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:28:56,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:28:56,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:28:56,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:28:56,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:28:56,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:28:56,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:28:56,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:28:56,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:28:56,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:28:56,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:28:56,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:28:56,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:28:56,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:28:56,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:28:56,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:28:56,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:28:56,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:28:56,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:28:56,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:28:56,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:28:56,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:28:56,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:28:56,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:28:56,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:28:56,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:28:56,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:28:56,245 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:28:56,246 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:28:56,246 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:28:56,246 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:28:56,247 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:28:56,248 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:28:56,248 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:28:56,248 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:28:56,248 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:28:56,249 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:28:56,249 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:28:56,249 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:28:56,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:28:56,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:28:56,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:28:56,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:28:56,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:28:56,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:28:56,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:28:56,252 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:28:56,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:28:56,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:28:56,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:28:56,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:28:56,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:28:56,254 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:28:56,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:28:56,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:28:56,255 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:28:56,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:28:56,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:28:56,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:28:56,256 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e [2022-11-20 20:28:56,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:28:56,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:28:56,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:28:56,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:28:56,673 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:28:56,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2022-11-20 20:28:59,801 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:29:00,478 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:29:00,479 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2022-11-20 20:29:00,541 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data/f09aa11fa/3b748010519f4b0bada229c4d3f77d18/FLAG289ac03b1 [2022-11-20 20:29:00,560 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data/f09aa11fa/3b748010519f4b0bada229c4d3f77d18 [2022-11-20 20:29:00,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:29:00,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:29:00,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:29:00,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:29:00,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:29:00,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:29:00" (1/1) ... [2022-11-20 20:29:00,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b60fa72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:00, skipping insertion in model container [2022-11-20 20:29:00,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:29:00" (1/1) ... [2022-11-20 20:29:00,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:29:00,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:29:02,199 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) 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:728) 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 20:29:02,206 INFO L158 Benchmark]: Toolchain (without parser) took 1638.84ms. Allocated memory is still 159.4MB. Free memory was 101.6MB in the beginning and 81.6MB in the end (delta: 20.0MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-20 20:29:02,207 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:29:02,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1633.77ms. Allocated memory is still 159.4MB. Free memory was 101.2MB in the beginning and 81.6MB in the end (delta: 19.6MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-20 20:29:02,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1633.77ms. Allocated memory is still 159.4MB. Free memory was 101.2MB in the beginning and 81.6MB in the end (delta: 19.6MB). Peak memory consumption was 38.7MB. 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e --- 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 20:29:04,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:29:04,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:29:04,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:29:04,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:29:04,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:29:04,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:29:04,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:29:04,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:29:04,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:29:04,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:29:04,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:29:04,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:29:04,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:29:04,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:29:04,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:29:04,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:29:04,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:29:04,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:29:04,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:29:04,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:29:04,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:29:04,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:29:04,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:29:04,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:29:04,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:29:04,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:29:04,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:29:04,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:29:04,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:29:04,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:29:04,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:29:04,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:29:04,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:29:04,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:29:04,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:29:04,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:29:04,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:29:04,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:29:04,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:29:04,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:29:04,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:29:04,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:29:04,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:29:04,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:29:04,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:29:04,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:29:04,841 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:29:04,841 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:29:04,841 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:29:04,842 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:29:04,842 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:29:04,843 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:29:04,843 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:29:04,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:29:04,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:29:04,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:29:04,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:29:04,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:29:04,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:29:04,846 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:29:04,846 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:29:04,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:29:04,847 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:29:04,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:29:04,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:29:04,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:29:04,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:29:04,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:29:04,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:29:04,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:29:04,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:29:04,849 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:29:04,850 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:29:04,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:29:04,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:29:04,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:29:04,851 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9035b4ec3c8be0c8a62b9c4cf3880a262fca73149d78c2d88c8226ff5942d9e [2022-11-20 20:29:05,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:29:05,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:29:05,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:29:05,283 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:29:05,284 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:29:05,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2022-11-20 20:29:08,408 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:29:09,135 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:29:09,136 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2022-11-20 20:29:09,195 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data/36ef406d7/18a0c0dc9eee4deb92341608b1e85d72/FLAG9a2766282 [2022-11-20 20:29:09,220 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/data/36ef406d7/18a0c0dc9eee4deb92341608b1e85d72 [2022-11-20 20:29:09,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:29:09,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:29:09,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:29:09,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:29:09,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:29:09,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:29:09" (1/1) ... [2022-11-20 20:29:09,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1048cc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:09, skipping insertion in model container [2022-11-20 20:29:09,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:29:09" (1/1) ... [2022-11-20 20:29:09,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:29:09,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:29:14,118 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374560,374573] [2022-11-20 20:29:14,122 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374705,374718] [2022-11-20 20:29:14,123 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374851,374864] [2022-11-20 20:29:14,124 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375016,375029] [2022-11-20 20:29:14,125 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375174,375187] [2022-11-20 20:29:14,125 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375332,375345] [2022-11-20 20:29:14,132 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375490,375503] [2022-11-20 20:29:14,132 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375650,375663] [2022-11-20 20:29:14,133 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375809,375822] [2022-11-20 20:29:14,133 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375948,375961] [2022-11-20 20:29:14,134 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376090,376103] [2022-11-20 20:29:14,134 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376239,376252] [2022-11-20 20:29:14,135 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376378,376391] [2022-11-20 20:29:14,135 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376533,376546] [2022-11-20 20:29:14,135 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376693,376706] [2022-11-20 20:29:14,136 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376844,376857] [2022-11-20 20:29:14,136 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376995,377008] [2022-11-20 20:29:14,137 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377147,377160] [2022-11-20 20:29:14,137 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377296,377309] [2022-11-20 20:29:14,138 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377444,377457] [2022-11-20 20:29:14,138 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377601,377614] [2022-11-20 20:29:14,140 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377750,377763] [2022-11-20 20:29:14,141 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377906,377919] [2022-11-20 20:29:14,142 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378059,378072] [2022-11-20 20:29:14,143 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378205,378218] [2022-11-20 20:29:14,143 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378348,378361] [2022-11-20 20:29:14,144 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378500,378513] [2022-11-20 20:29:14,145 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378646,378659] [2022-11-20 20:29:14,145 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378791,378804] [2022-11-20 20:29:14,146 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378945,378958] [2022-11-20 20:29:14,147 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379096,379109] [2022-11-20 20:29:14,147 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379251,379264] [2022-11-20 20:29:14,148 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379403,379416] [2022-11-20 20:29:14,148 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379558,379571] [2022-11-20 20:29:14,149 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379722,379735] [2022-11-20 20:29:14,149 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379878,379891] [2022-11-20 20:29:14,149 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380042,380055] [2022-11-20 20:29:14,150 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380184,380197] [2022-11-20 20:29:14,150 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380342,380355] [2022-11-20 20:29:14,150 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380509,380522] [2022-11-20 20:29:14,151 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380668,380681] [2022-11-20 20:29:14,151 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380827,380840] [2022-11-20 20:29:14,152 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380976,380989] [2022-11-20 20:29:14,152 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381123,381136] [2022-11-20 20:29:14,152 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381262,381275] [2022-11-20 20:29:14,153 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381425,381438] [2022-11-20 20:29:14,153 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381591,381604] [2022-11-20 20:29:14,155 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381755,381768] [2022-11-20 20:29:14,156 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381920,381933] [2022-11-20 20:29:14,156 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382085,382098] [2022-11-20 20:29:14,157 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382251,382264] [2022-11-20 20:29:14,157 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382416,382429] [2022-11-20 20:29:14,158 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382583,382596] [2022-11-20 20:29:14,158 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382743,382756] [2022-11-20 20:29:14,158 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382905,382918] [2022-11-20 20:29:14,159 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383064,383077] [2022-11-20 20:29:14,159 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383210,383223] [2022-11-20 20:29:14,159 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383353,383366] [2022-11-20 20:29:14,160 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383497,383510] [2022-11-20 20:29:14,160 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383640,383653] [2022-11-20 20:29:14,161 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383784,383797] [2022-11-20 20:29:14,162 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383925,383938] [2022-11-20 20:29:14,162 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384063,384076] [2022-11-20 20:29:14,162 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384221,384234] [2022-11-20 20:29:14,163 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384380,384393] [2022-11-20 20:29:14,164 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384536,384549] [2022-11-20 20:29:14,164 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384685,384698] [2022-11-20 20:29:14,164 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384837,384850] [2022-11-20 20:29:14,165 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384988,385001] [2022-11-20 20:29:14,166 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385137,385150] [2022-11-20 20:29:14,166 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385289,385302] [2022-11-20 20:29:14,167 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385437,385450] [2022-11-20 20:29:14,167 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385590,385603] [2022-11-20 20:29:14,168 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385741,385754] [2022-11-20 20:29:14,168 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385891,385904] [2022-11-20 20:29:14,169 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386038,386051] [2022-11-20 20:29:14,169 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386189,386202] [2022-11-20 20:29:14,170 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386340,386353] [2022-11-20 20:29:14,170 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386488,386501] [2022-11-20 20:29:14,171 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386654,386667] [2022-11-20 20:29:14,171 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386823,386836] [2022-11-20 20:29:14,171 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386990,387003] [2022-11-20 20:29:14,172 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387158,387171] [2022-11-20 20:29:14,172 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387308,387321] [2022-11-20 20:29:14,172 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387455,387468] [2022-11-20 20:29:14,173 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387616,387629] [2022-11-20 20:29:14,173 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387786,387799] [2022-11-20 20:29:14,174 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387948,387961] [2022-11-20 20:29:14,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:29:14,213 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:29:14,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:29:14,739 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374560,374573] [2022-11-20 20:29:14,739 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374705,374718] [2022-11-20 20:29:14,740 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374851,374864] [2022-11-20 20:29:14,740 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375016,375029] [2022-11-20 20:29:14,740 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375174,375187] [2022-11-20 20:29:14,741 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375332,375345] [2022-11-20 20:29:14,741 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375490,375503] [2022-11-20 20:29:14,741 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375650,375663] [2022-11-20 20:29:14,742 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375809,375822] [2022-11-20 20:29:14,742 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375948,375961] [2022-11-20 20:29:14,742 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376090,376103] [2022-11-20 20:29:14,743 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376239,376252] [2022-11-20 20:29:14,743 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376378,376391] [2022-11-20 20:29:14,743 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376533,376546] [2022-11-20 20:29:14,744 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376693,376706] [2022-11-20 20:29:14,744 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376844,376857] [2022-11-20 20:29:14,744 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376995,377008] [2022-11-20 20:29:14,745 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377147,377160] [2022-11-20 20:29:14,745 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377296,377309] [2022-11-20 20:29:14,746 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377444,377457] [2022-11-20 20:29:14,746 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377601,377614] [2022-11-20 20:29:14,747 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377750,377763] [2022-11-20 20:29:14,748 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377906,377919] [2022-11-20 20:29:14,748 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378059,378072] [2022-11-20 20:29:14,749 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378205,378218] [2022-11-20 20:29:14,749 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378348,378361] [2022-11-20 20:29:14,749 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378500,378513] [2022-11-20 20:29:14,750 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378646,378659] [2022-11-20 20:29:14,750 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378791,378804] [2022-11-20 20:29:14,750 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378945,378958] [2022-11-20 20:29:14,751 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379096,379109] [2022-11-20 20:29:14,752 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379251,379264] [2022-11-20 20:29:14,752 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379403,379416] [2022-11-20 20:29:14,752 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379558,379571] [2022-11-20 20:29:14,753 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379722,379735] [2022-11-20 20:29:14,753 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379878,379891] [2022-11-20 20:29:14,754 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380042,380055] [2022-11-20 20:29:14,755 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380184,380197] [2022-11-20 20:29:14,756 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380342,380355] [2022-11-20 20:29:14,756 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380509,380522] [2022-11-20 20:29:14,757 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380668,380681] [2022-11-20 20:29:14,758 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380827,380840] [2022-11-20 20:29:14,758 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380976,380989] [2022-11-20 20:29:14,758 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381123,381136] [2022-11-20 20:29:14,759 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381262,381275] [2022-11-20 20:29:14,759 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381425,381438] [2022-11-20 20:29:14,759 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381591,381604] [2022-11-20 20:29:14,760 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381755,381768] [2022-11-20 20:29:14,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381920,381933] [2022-11-20 20:29:14,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382085,382098] [2022-11-20 20:29:14,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382251,382264] [2022-11-20 20:29:14,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382416,382429] [2022-11-20 20:29:14,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382583,382596] [2022-11-20 20:29:14,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382743,382756] [2022-11-20 20:29:14,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382905,382918] [2022-11-20 20:29:14,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383064,383077] [2022-11-20 20:29:14,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383210,383223] [2022-11-20 20:29:14,799 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383353,383366] [2022-11-20 20:29:14,799 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383497,383510] [2022-11-20 20:29:14,799 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383640,383653] [2022-11-20 20:29:14,799 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383784,383797] [2022-11-20 20:29:14,800 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383925,383938] [2022-11-20 20:29:14,800 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384063,384076] [2022-11-20 20:29:14,800 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384221,384234] [2022-11-20 20:29:14,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384380,384393] [2022-11-20 20:29:14,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384536,384549] [2022-11-20 20:29:14,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384685,384698] [2022-11-20 20:29:14,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384837,384850] [2022-11-20 20:29:14,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384988,385001] [2022-11-20 20:29:14,808 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385137,385150] [2022-11-20 20:29:14,809 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385289,385302] [2022-11-20 20:29:14,809 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385437,385450] [2022-11-20 20:29:14,810 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385590,385603] [2022-11-20 20:29:14,810 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385741,385754] [2022-11-20 20:29:14,811 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385891,385904] [2022-11-20 20:29:14,812 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386038,386051] [2022-11-20 20:29:14,812 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386189,386202] [2022-11-20 20:29:14,812 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386340,386353] [2022-11-20 20:29:14,813 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386488,386501] [2022-11-20 20:29:14,814 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386654,386667] [2022-11-20 20:29:14,814 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386823,386836] [2022-11-20 20:29:14,815 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386990,387003] [2022-11-20 20:29:14,815 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387158,387171] [2022-11-20 20:29:14,815 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387308,387321] [2022-11-20 20:29:14,816 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387455,387468] [2022-11-20 20:29:14,816 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387616,387629] [2022-11-20 20:29:14,817 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387786,387799] [2022-11-20 20:29:14,817 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387948,387961] [2022-11-20 20:29:14,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:29:14,844 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:29:15,368 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374560,374573] [2022-11-20 20:29:15,369 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374705,374718] [2022-11-20 20:29:15,369 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[374851,374864] [2022-11-20 20:29:15,370 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375016,375029] [2022-11-20 20:29:15,370 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375174,375187] [2022-11-20 20:29:15,370 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375332,375345] [2022-11-20 20:29:15,371 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375490,375503] [2022-11-20 20:29:15,371 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375650,375663] [2022-11-20 20:29:15,372 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375809,375822] [2022-11-20 20:29:15,372 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[375948,375961] [2022-11-20 20:29:15,373 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376090,376103] [2022-11-20 20:29:15,374 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376239,376252] [2022-11-20 20:29:15,374 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376378,376391] [2022-11-20 20:29:15,375 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376533,376546] [2022-11-20 20:29:15,375 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376693,376706] [2022-11-20 20:29:15,375 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376844,376857] [2022-11-20 20:29:15,376 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[376995,377008] [2022-11-20 20:29:15,376 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377147,377160] [2022-11-20 20:29:15,378 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377296,377309] [2022-11-20 20:29:15,379 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377444,377457] [2022-11-20 20:29:15,379 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377601,377614] [2022-11-20 20:29:15,380 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377750,377763] [2022-11-20 20:29:15,380 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[377906,377919] [2022-11-20 20:29:15,381 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378059,378072] [2022-11-20 20:29:15,381 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378205,378218] [2022-11-20 20:29:15,381 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378348,378361] [2022-11-20 20:29:15,382 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378500,378513] [2022-11-20 20:29:15,382 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378646,378659] [2022-11-20 20:29:15,382 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378791,378804] [2022-11-20 20:29:15,383 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[378945,378958] [2022-11-20 20:29:15,383 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379096,379109] [2022-11-20 20:29:15,383 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379251,379264] [2022-11-20 20:29:15,384 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379403,379416] [2022-11-20 20:29:15,384 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379558,379571] [2022-11-20 20:29:15,384 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379722,379735] [2022-11-20 20:29:15,385 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[379878,379891] [2022-11-20 20:29:15,385 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380042,380055] [2022-11-20 20:29:15,386 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380184,380197] [2022-11-20 20:29:15,386 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380342,380355] [2022-11-20 20:29:15,386 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380509,380522] [2022-11-20 20:29:15,388 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380668,380681] [2022-11-20 20:29:15,388 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380827,380840] [2022-11-20 20:29:15,389 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[380976,380989] [2022-11-20 20:29:15,389 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381123,381136] [2022-11-20 20:29:15,390 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381262,381275] [2022-11-20 20:29:15,390 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381425,381438] [2022-11-20 20:29:15,390 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381591,381604] [2022-11-20 20:29:15,391 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381755,381768] [2022-11-20 20:29:15,391 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[381920,381933] [2022-11-20 20:29:15,391 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382085,382098] [2022-11-20 20:29:15,392 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382251,382264] [2022-11-20 20:29:15,393 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382416,382429] [2022-11-20 20:29:15,393 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382583,382596] [2022-11-20 20:29:15,394 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382743,382756] [2022-11-20 20:29:15,394 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[382905,382918] [2022-11-20 20:29:15,394 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383064,383077] [2022-11-20 20:29:15,395 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383210,383223] [2022-11-20 20:29:15,395 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383353,383366] [2022-11-20 20:29:15,395 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383497,383510] [2022-11-20 20:29:15,396 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383640,383653] [2022-11-20 20:29:15,396 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383784,383797] [2022-11-20 20:29:15,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[383925,383938] [2022-11-20 20:29:15,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384063,384076] [2022-11-20 20:29:15,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384221,384234] [2022-11-20 20:29:15,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384380,384393] [2022-11-20 20:29:15,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384536,384549] [2022-11-20 20:29:15,399 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384685,384698] [2022-11-20 20:29:15,399 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384837,384850] [2022-11-20 20:29:15,399 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[384988,385001] [2022-11-20 20:29:15,400 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385137,385150] [2022-11-20 20:29:15,400 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385289,385302] [2022-11-20 20:29:15,401 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385437,385450] [2022-11-20 20:29:15,401 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385590,385603] [2022-11-20 20:29:15,401 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385741,385754] [2022-11-20 20:29:15,402 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[385891,385904] [2022-11-20 20:29:15,403 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386038,386051] [2022-11-20 20:29:15,403 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386189,386202] [2022-11-20 20:29:15,403 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386340,386353] [2022-11-20 20:29:15,404 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386488,386501] [2022-11-20 20:29:15,405 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386654,386667] [2022-11-20 20:29:15,410 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386823,386836] [2022-11-20 20:29:15,411 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[386990,387003] [2022-11-20 20:29:15,411 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387158,387171] [2022-11-20 20:29:15,412 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387308,387321] [2022-11-20 20:29:15,412 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387455,387468] [2022-11-20 20:29:15,413 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387616,387629] [2022-11-20 20:29:15,413 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387786,387799] [2022-11-20 20:29:15,414 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_9512e37b-d3ea-4785-b4a0-33f848b650a8/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i[387948,387961] [2022-11-20 20:29:15,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:29:15,698 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:29:15,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15 WrapperNode [2022-11-20 20:29:15,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:29:15,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:29:15,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:29:15,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:29:15,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:15,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,030 INFO L138 Inliner]: procedures = 649, calls = 3018, calls flagged for inlining = 295, calls inlined = 219, statements flattened = 6249 [2022-11-20 20:29:16,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:29:16,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:29:16,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:29:16,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:29:16,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:29:16,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:29:16,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:29:16,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:29:16,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (1/1) ... [2022-11-20 20:29:16,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:29:16,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:29:16,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:29:16,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:29:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2022-11-20 20:29:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2022-11-20 20:29:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 20:29:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 20:29:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:29:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:29:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_wakeup [2022-11-20 20:29:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_wakeup [2022-11-20 20:29:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_read_fifo [2022-11-20 20:29:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_read_fifo [2022-11-20 20:29:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_write_fifo [2022-11-20 20:29:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_write_fifo [2022-11-20 20:29:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:29:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:29:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_net2272 [2022-11-20 20:29:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_net2272 [2022-11-20 20:29:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_remap [2022-11-20 20:29:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_remap [2022-11-20 20:29:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 20:29:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 20:29:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 20:29:16,462 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 20:29:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:29:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 20:29:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_read [2022-11-20 20:29:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_read [2022-11-20 20:29:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-20 20:29:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-20 20:29:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_enable [2022-11-20 20:29:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_enable [2022-11-20 20:29:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pio_advance [2022-11-20 20:29:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pio_advance [2022-11-20 20:29:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-20 20:29:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-20 20:29:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 20:29:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 20:29:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure set_fifo_bytecount [2022-11-20 20:29:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fifo_bytecount [2022-11-20 20:29:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 20:29:16,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 20:29:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_usb_reset [2022-11-20 20:29:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_usb_reset [2022-11-20 20:29:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:29:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:29:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:29:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:29:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-20 20:29:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-20 20:29:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_usb_reinit [2022-11-20 20:29:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_usb_reinit [2022-11-20 20:29:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pci_unregister [2022-11-20 20:29:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pci_unregister [2022-11-20 20:29:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-20 20:29:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-20 20:29:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:29:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 20:29:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:29:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:29:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_101 [2022-11-20 20:29:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_101 [2022-11-20 20:29:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:29:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure type_string [2022-11-20 20:29:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure type_string [2022-11-20 20:29:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_gadget_release [2022-11-20 20:29:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_gadget_release [2022-11-20 20:29:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-20 20:29:16,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-20 20:29:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_handle_dma [2022-11-20 20:29:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_handle_dma [2022-11-20 20:29:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure allow_status [2022-11-20 20:29:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_status [2022-11-20 20:29:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-20 20:29:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-20 20:29:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-20 20:29:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-20 20:29:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:29:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:29:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_request_dma [2022-11-20 20:29:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_request_dma [2022-11-20 20:29:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 20:29:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 20:29:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 20:29:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 20:29:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 20:29:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 20:29:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:29:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:29:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep_read [2022-11-20 20:29:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep_read [2022-11-20 20:29:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 20:29:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 20:29:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 20:29:16,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 20:29:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 20:29:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 20:29:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:29:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:29:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 20:29:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 20:29:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2022-11-20 20:29:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2022-11-20 20:29:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_set_halt_and_wedge [2022-11-20 20:29:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_set_halt_and_wedge [2022-11-20 20:29:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:29:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2022-11-20 20:29:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2022-11-20 20:29:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2022-11-20 20:29:16,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2022-11-20 20:29:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:29:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:29:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:29:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 20:29:16,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 20:29:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:29:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:29:16,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:29:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure set_halt [2022-11-20 20:29:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure set_halt [2022-11-20 20:29:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2022-11-20 20:29:16,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2022-11-20 20:29:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 20:29:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 20:29:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 20:29:16,484 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 20:29:16,484 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_set_wedge [2022-11-20 20:29:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_set_wedge [2022-11-20 20:29:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep_reset [2022-11-20 20:29:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep_reset [2022-11-20 20:29:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-20 20:29:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-20 20:29:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-20 20:29:16,485 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-20 20:29:16,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:29:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:29:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure stop_activity [2022-11-20 20:29:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_activity [2022-11-20 20:29:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 20:29:16,486 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 20:29:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:29:16,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:29:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:29:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:29:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:29:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:29:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_irq [2022-11-20 20:29:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_irq [2022-11-20 20:29:16,487 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_handle_ep [2022-11-20 20:29:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_handle_ep [2022-11-20 20:29:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_start [2022-11-20 20:29:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_start [2022-11-20 20:29:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep_write [2022-11-20 20:29:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep_write [2022-11-20 20:29:16,488 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pci_probe [2022-11-20 20:29:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pci_probe [2022-11-20 20:29:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:29:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 20:29:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_probe_fin [2022-11-20 20:29:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_probe_fin [2022-11-20 20:29:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_fifo_flush [2022-11-20 20:29:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_fifo_flush [2022-11-20 20:29:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_done [2022-11-20 20:29:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_done [2022-11-20 20:29:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_cancel_dma [2022-11-20 20:29:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_cancel_dma [2022-11-20 20:29:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-20 20:29:16,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2022-11-20 20:29:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_dequeue_all [2022-11-20 20:29:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_dequeue_all [2022-11-20 20:29:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-20 20:29:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-20 20:29:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_probe_init [2022-11-20 20:29:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_probe_init [2022-11-20 20:29:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-20 20:29:16,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-20 20:29:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 20:29:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 20:29:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_remove [2022-11-20 20:29:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_remove [2022-11-20 20:29:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 20:29:16,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 20:29:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:29:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 20:29:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 20:29:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 20:29:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 20:29:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_fifo_status [2022-11-20 20:29:16,493 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_fifo_status [2022-11-20 20:29:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:29:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_130 [2022-11-20 20:29:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_130 [2022-11-20 20:29:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2022-11-20 20:29:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2022-11-20 20:29:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure buf_state_string [2022-11-20 20:29:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure buf_state_string [2022-11-20 20:29:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:29:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:29:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:29:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:29:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure clear_halt [2022-11-20 20:29:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_halt [2022-11-20 20:29:16,495 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-20 20:29:16,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-20 20:29:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_stop [2022-11-20 20:29:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_stop [2022-11-20 20:29:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:29:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-20 20:29:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-20 20:29:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_reg_addr [2022-11-20 20:29:16,496 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_reg_addr [2022-11-20 20:29:16,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_net2272 [2022-11-20 20:29:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_net2272 [2022-11-20 20:29:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 20:29:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 20:29:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_plat_probe [2022-11-20 20:29:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_plat_probe [2022-11-20 20:29:16,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 20:29:16,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 20:29:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-20 20:29:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-20 20:29:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_11_2 [2022-11-20 20:29:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_11_2 [2022-11-20 20:29:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:29:16,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:29:16,498 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_write [2022-11-20 20:29:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_write [2022-11-20 20:29:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 20:29:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 20:29:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 20:29:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 20:29:16,499 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_plat_remove [2022-11-20 20:29:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_plat_remove [2022-11-20 20:29:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 20:29:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 20:29:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_ep0_start [2022-11-20 20:29:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_ep0_start [2022-11-20 20:29:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 20:29:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 20:29:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 20:29:16,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 20:29:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-20 20:29:16,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-20 20:29:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_pci_remove [2022-11-20 20:29:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_pci_remove [2022-11-20 20:29:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:29:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:29:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_disable [2022-11-20 20:29:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_disable [2022-11-20 20:29:16,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 20:29:16,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 20:29:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-20 20:29:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-20 20:29:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 20:29:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 20:29:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_handle_stat0_irqs [2022-11-20 20:29:16,504 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_handle_stat0_irqs [2022-11-20 20:29:16,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 20:29:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 20:29:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:29:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:29:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_get_frame [2022-11-20 20:29:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_get_frame [2022-11-20 20:29:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 20:29:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 20:29:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_102 [2022-11-20 20:29:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_102 [2022-11-20 20:29:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_get_ep_by_addr [2022-11-20 20:29:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_get_ep_by_addr [2022-11-20 20:29:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 20:29:16,506 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 20:29:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:29:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:29:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 20:29:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 20:29:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_0_5 [2022-11-20 20:29:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_0_5 [2022-11-20 20:29:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-20 20:29:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-20 20:29:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_kick_dma [2022-11-20 20:29:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_kick_dma [2022-11-20 20:29:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure net2272_dequeue [2022-11-20 20:29:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure net2272_dequeue [2022-11-20 20:29:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 20:29:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 20:29:16,508 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-20 20:29:16,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-20 20:29:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-20 20:29:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-20 20:29:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-20 20:29:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-20 20:29:16,509 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-20 20:29:16,509 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-20 20:29:17,565 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:29:17,573 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:29:17,761 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:29:19,270 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 20:29:19,949 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !(0bv64 != assert_out_naking_~tmp___0~4#1); [2022-11-20 20:29:19,949 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0bv32 == ~bvand32(32bv32, ~zero_extendFrom8To32(assert_out_naking_~tmp~9#1))); [2022-11-20 20:29:19,949 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0bv32 == ~bvand32(32bv32, ~zero_extendFrom8To32(assert_out_naking_~tmp~9#1));call write~$Pointer$(4bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, assert_out_naking_~#descriptor~0#1.offset, 8bv64);call write~$Pointer$(5bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(8bv64, assert_out_naking_~#descriptor~0#1.offset), 8bv64);call write~$Pointer$(6bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(16bv64, assert_out_naking_~#descriptor~0#1.offset), 8bv64);call write~$Pointer$(7bv64, 0bv64, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(24bv64, assert_out_naking_~#descriptor~0#1.offset), 8bv64);call write~intINTTYPE4(131bv32, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(32bv64, assert_out_naking_~#descriptor~0#1.offset), 4bv64);call write~intINTTYPE1(0bv8, assert_out_naking_~#descriptor~0#1.base, ~bvadd64(36bv64, assert_out_naking_~#descriptor~0#1.offset), 1bv64);call assert_out_naking_#t~mem117#1 := read~intINTTYPE1(assert_out_naking_~#descriptor~0#1.base, ~bvadd64(36bv64, assert_out_naking_~#descriptor~0#1.offset), 1bv64); [2022-11-20 20:29:19,950 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L4822: SUMMARY for call assert_out_naking_#t~ret118#1 := ldv__builtin_expect(~bvand64(1bv64, ~zero_extendFrom8To64(assert_out_naking_#t~mem117#1)), 0bv64); srcloc: null [2022-11-20 20:29:19,950 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L4822-1: assert_out_naking_~tmp___0~4#1 := assert_out_naking_#t~ret118#1;havoc assert_out_naking_#t~mem117#1;havoc assert_out_naking_#t~ret118#1; [2022-11-20 20:29:19,950 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L4814: call ULTIMATE.dealloc(assert_out_naking_~#descriptor~0#1.base, assert_out_naking_~#descriptor~0#1.offset);havoc assert_out_naking_~#descriptor~0#1.base, assert_out_naking_~#descriptor~0#1.offset; [2022-11-20 20:29:19,950 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L4832: SUMMARY for call net2272_ep_write(assert_out_naking_~ep#1.base, assert_out_naking_~ep#1.offset, 15bv32, 128bv8); srcloc: null [2022-11-20 20:29:19,950 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L4824: goto; [2022-11-20 20:29:19,950 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L4824: assume 0bv64 != assert_out_naking_~tmp___0~4#1;call assert_out_naking_#t~mem119#1.base, assert_out_naking_#t~mem119#1.offset := read~$Pointer$(assert_out_naking_~ep#1.base, ~bvadd64(65bv64, assert_out_naking_~ep#1.offset), 8bv64);call assert_out_naking_#t~mem120#1.base, assert_out_naking_#t~mem120#1.offset := read~$Pointer$(assert_out_naking_#t~mem119#1.base, ~bvadd64(1481bv64, assert_out_naking_#t~mem119#1.offset), 8bv64);call assert_out_naking_#t~mem121#1.base, assert_out_naking_#t~mem121#1.offset := read~$Pointer$(assert_out_naking_~ep#1.base, ~bvadd64(8bv64, assert_out_naking_~ep#1.offset), 8bv64);havoc assert_out_naking_#t~mem119#1.base, assert_out_naking_#t~mem119#1.offset;havoc assert_out_naking_#t~mem120#1.base, assert_out_naking_#t~mem120#1.offset;havoc assert_out_naking_#t~mem121#1.base, assert_out_naking_#t~mem121#1.offset; [2022-11-20 20:29:35,393 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:29:35,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:29:35,420 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:29:35,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:29:35 BoogieIcfgContainer [2022-11-20 20:29:35,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:29:35,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:29:35,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:29:35,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:29:35,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:29:09" (1/3) ... [2022-11-20 20:29:35,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51735bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:29:35, skipping insertion in model container [2022-11-20 20:29:35,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:29:15" (2/3) ... [2022-11-20 20:29:35,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51735bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:29:35, skipping insertion in model container [2022-11-20 20:29:35,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:29:35" (3/3) ... [2022-11-20 20:29:35,434 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--usb--gadget--udc--net2272.ko.cil.i [2022-11-20 20:29:35,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:29:35,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-20 20:29:35,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:29:35,631 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;@2a242950, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:29:35,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-20 20:29:35,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 2459 states, 1585 states have (on average 1.3009463722397476) internal successors, (2062), 1675 states have internal predecessors, (2062), 711 states have call successors, (711), 135 states have call predecessors, (711), 134 states have return successors, (703), 687 states have call predecessors, (703), 703 states have call successors, (703) [2022-11-20 20:29:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 20:29:35,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:29:35,661 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 20:29:35,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:29:35,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:29:35,668 INFO L85 PathProgramCache]: Analyzing trace with hash -338388154, now seen corresponding path program 1 times [2022-11-20 20:29:35,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:29:35,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692453152] [2022-11-20 20:29:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:35,690 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 20:29:35,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:29:35,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:35,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:37,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:29:37,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:29:37,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:37,758 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:37,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692453152] [2022-11-20 20:29:37,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692453152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:37,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:29:37,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:29:37,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463047028] [2022-11-20 20:29:37,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:37,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:29:37,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:37,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:29:37,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:29:37,852 INFO L87 Difference]: Start difference. First operand has 2459 states, 1585 states have (on average 1.3009463722397476) internal successors, (2062), 1675 states have internal predecessors, (2062), 711 states have call successors, (711), 135 states have call predecessors, (711), 134 states have return successors, (703), 687 states have call predecessors, (703), 703 states have call successors, (703) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 20:29:38,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:29:38,524 INFO L93 Difference]: Finished difference Result 7252 states and 10685 transitions. [2022-11-20 20:29:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:29:38,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2022-11-20 20:29:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:29:38,593 INFO L225 Difference]: With dead ends: 7252 [2022-11-20 20:29:38,593 INFO L226 Difference]: Without dead ends: 4786 [2022-11-20 20:29:38,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:29:38,628 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 3288 mSDsluCounter, 7757 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 12040 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:29:38,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3290 Valid, 12040 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:29:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4786 states. [2022-11-20 20:29:39,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4786 to 4589. [2022-11-20 20:29:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 2976 states have (on average 1.283266129032258) internal successors, (3819), 3120 states have internal predecessors, (3819), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2022-11-20 20:29:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 6557 transitions. [2022-11-20 20:29:39,161 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 6557 transitions. Word has length 66 [2022-11-20 20:29:39,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:29:39,162 INFO L495 AbstractCegarLoop]: Abstraction has 4589 states and 6557 transitions. [2022-11-20 20:29:39,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 20:29:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 6557 transitions. [2022-11-20 20:29:39,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 20:29:39,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:29:39,178 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 20:29:39,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:39,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:39,391 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:29:39,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:29:39,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1330386260, now seen corresponding path program 1 times [2022-11-20 20:29:39,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:29:39,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419693523] [2022-11-20 20:29:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:39,394 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 20:29:39,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:29:39,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:39,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:41,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:29:41,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:29:41,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:41,321 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:41,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419693523] [2022-11-20 20:29:41,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419693523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:41,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:29:41,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:29:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717030737] [2022-11-20 20:29:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:41,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:29:41,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:41,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:29:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:29:41,324 INFO L87 Difference]: Start difference. First operand 4589 states and 6557 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 20:29:41,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:29:41,762 INFO L93 Difference]: Finished difference Result 4589 states and 6557 transitions. [2022-11-20 20:29:41,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:29:41,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2022-11-20 20:29:41,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:29:41,802 INFO L225 Difference]: With dead ends: 4589 [2022-11-20 20:29:41,802 INFO L226 Difference]: Without dead ends: 4587 [2022-11-20 20:29:41,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:29:41,808 INFO L413 NwaCegarLoop]: 3412 mSDtfsCounter, 3357 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:29:41,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3359 Valid, 6822 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:29:41,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4587 states. [2022-11-20 20:29:42,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4587 to 4587. [2022-11-20 20:29:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4587 states, 2975 states have (on average 1.2830252100840336) internal successors, (3817), 3118 states have internal predecessors, (3817), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2022-11-20 20:29:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4587 states to 4587 states and 6555 transitions. [2022-11-20 20:29:42,154 INFO L78 Accepts]: Start accepts. Automaton has 4587 states and 6555 transitions. Word has length 72 [2022-11-20 20:29:42,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:29:42,156 INFO L495 AbstractCegarLoop]: Abstraction has 4587 states and 6555 transitions. [2022-11-20 20:29:42,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 20:29:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 4587 states and 6555 transitions. [2022-11-20 20:29:42,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 20:29:42,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:29:42,159 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:29:42,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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)] Forceful destruction successful, exit code 0 [2022-11-20 20:29:42,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:42,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:29:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:29:42,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1514394492, now seen corresponding path program 1 times [2022-11-20 20:29:42,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:29:42,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727745162] [2022-11-20 20:29:42,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:42,379 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 20:29:42,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:29:42,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:42,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:43,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:29:43,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:29:44,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:44,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:44,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727745162] [2022-11-20 20:29:44,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727745162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:44,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:29:44,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:29:44,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145699366] [2022-11-20 20:29:44,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:44,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:29:44,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:44,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:29:44,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:29:44,238 INFO L87 Difference]: Start difference. First operand 4587 states and 6555 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 20:29:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:29:44,581 INFO L93 Difference]: Finished difference Result 4587 states and 6555 transitions. [2022-11-20 20:29:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:29:44,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 78 [2022-11-20 20:29:44,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:29:44,611 INFO L225 Difference]: With dead ends: 4587 [2022-11-20 20:29:44,612 INFO L226 Difference]: Without dead ends: 4585 [2022-11-20 20:29:44,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:29:44,619 INFO L413 NwaCegarLoop]: 3410 mSDtfsCounter, 3349 mSDsluCounter, 3408 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 6818 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:29:44,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3351 Valid, 6818 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:29:44,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4585 states. [2022-11-20 20:29:45,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4585 to 4585. [2022-11-20 20:29:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4585 states, 2974 states have (on average 1.2827841291190316) internal successors, (3815), 3116 states have internal predecessors, (3815), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2022-11-20 20:29:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4585 states to 4585 states and 6553 transitions. [2022-11-20 20:29:45,086 INFO L78 Accepts]: Start accepts. Automaton has 4585 states and 6553 transitions. Word has length 78 [2022-11-20 20:29:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:29:45,087 INFO L495 AbstractCegarLoop]: Abstraction has 4585 states and 6553 transitions. [2022-11-20 20:29:45,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 20:29:45,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4585 states and 6553 transitions. [2022-11-20 20:29:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 20:29:45,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:29:45,092 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 20:29:45,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:45,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:45,317 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:29:45,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:29:45,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1294335961, now seen corresponding path program 1 times [2022-11-20 20:29:45,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:29:45,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964601850] [2022-11-20 20:29:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:45,320 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 20:29:45,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:29:45,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:45,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:46,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:29:46,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:29:46,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:46,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:46,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964601850] [2022-11-20 20:29:46,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964601850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:46,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:29:46,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:29:46,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577026802] [2022-11-20 20:29:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:46,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:29:46,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:29:46,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:29:46,996 INFO L87 Difference]: Start difference. First operand 4585 states and 6553 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 20:29:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:29:47,406 INFO L93 Difference]: Finished difference Result 4585 states and 6553 transitions. [2022-11-20 20:29:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:29:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 84 [2022-11-20 20:29:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:29:47,432 INFO L225 Difference]: With dead ends: 4585 [2022-11-20 20:29:47,432 INFO L226 Difference]: Without dead ends: 4583 [2022-11-20 20:29:47,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:29:47,436 INFO L413 NwaCegarLoop]: 3408 mSDtfsCounter, 3341 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 6814 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:29:47,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3343 Valid, 6814 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:29:47,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2022-11-20 20:29:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 4583. [2022-11-20 20:29:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 2973 states have (on average 1.282542885973764) internal successors, (3813), 3114 states have internal predecessors, (3813), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2022-11-20 20:29:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 6551 transitions. [2022-11-20 20:29:47,803 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 6551 transitions. Word has length 84 [2022-11-20 20:29:47,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:29:47,803 INFO L495 AbstractCegarLoop]: Abstraction has 4583 states and 6551 transitions. [2022-11-20 20:29:47,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 20:29:47,804 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 6551 transitions. [2022-11-20 20:29:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-20 20:29:47,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:29:47,806 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:29:47,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:48,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:48,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:29:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:29:48,019 INFO L85 PathProgramCache]: Analyzing trace with hash 364834001, now seen corresponding path program 1 times [2022-11-20 20:29:48,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:29:48,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817899907] [2022-11-20 20:29:48,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:48,021 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 20:29:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:29:48,023 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:48,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:49,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:29:49,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:29:49,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:49,639 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:49,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817899907] [2022-11-20 20:29:49,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817899907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:49,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:29:49,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:29:49,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557570757] [2022-11-20 20:29:49,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:49,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:29:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:29:49,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:29:49,642 INFO L87 Difference]: Start difference. First operand 4583 states and 6551 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 20:29:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:29:50,140 INFO L93 Difference]: Finished difference Result 4583 states and 6551 transitions. [2022-11-20 20:29:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:29:50,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 90 [2022-11-20 20:29:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:29:50,171 INFO L225 Difference]: With dead ends: 4583 [2022-11-20 20:29:50,172 INFO L226 Difference]: Without dead ends: 4581 [2022-11-20 20:29:50,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:29:50,175 INFO L413 NwaCegarLoop]: 3406 mSDtfsCounter, 3333 mSDsluCounter, 3404 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:29:50,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 6810 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:29:50,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-11-20 20:29:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4581. [2022-11-20 20:29:50,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 2972 states have (on average 1.2823014804845223) internal successors, (3811), 3112 states have internal predecessors, (3811), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2022-11-20 20:29:50,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 6549 transitions. [2022-11-20 20:29:50,670 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 6549 transitions. Word has length 90 [2022-11-20 20:29:50,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:29:50,672 INFO L495 AbstractCegarLoop]: Abstraction has 4581 states and 6549 transitions. [2022-11-20 20:29:50,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 20:29:50,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 6549 transitions. [2022-11-20 20:29:50,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-20 20:29:50,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:29:50,682 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:29:50,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 20:29:50,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:50,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:29:50,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:29:50,909 INFO L85 PathProgramCache]: Analyzing trace with hash 916888658, now seen corresponding path program 1 times [2022-11-20 20:29:50,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:29:50,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824738535] [2022-11-20 20:29:50,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:50,911 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 20:29:50,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:29:50,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:50,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:52,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:29:52,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:29:52,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:52,665 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:52,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824738535] [2022-11-20 20:29:52,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824738535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:52,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:29:52,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:29:52,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062346541] [2022-11-20 20:29:52,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:52,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:29:52,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:52,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:29:52,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:29:52,668 INFO L87 Difference]: Start difference. First operand 4581 states and 6549 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 20:29:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:29:53,159 INFO L93 Difference]: Finished difference Result 4581 states and 6549 transitions. [2022-11-20 20:29:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:29:53,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2022-11-20 20:29:53,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:29:53,212 INFO L225 Difference]: With dead ends: 4581 [2022-11-20 20:29:53,212 INFO L226 Difference]: Without dead ends: 4579 [2022-11-20 20:29:53,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:29:53,217 INFO L413 NwaCegarLoop]: 3404 mSDtfsCounter, 3325 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 6806 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:29:53,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 6806 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:29:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2022-11-20 20:29:53,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 4579. [2022-11-20 20:29:53,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4579 states, 2971 states have (on average 1.282059912487378) internal successors, (3809), 3110 states have internal predecessors, (3809), 1341 states have call successors, (1341), 248 states have call predecessors, (1341), 244 states have return successors, (1397), 1299 states have call predecessors, (1397), 1339 states have call successors, (1397) [2022-11-20 20:29:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4579 states to 4579 states and 6547 transitions. [2022-11-20 20:29:53,731 INFO L78 Accepts]: Start accepts. Automaton has 4579 states and 6547 transitions. Word has length 96 [2022-11-20 20:29:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:29:53,732 INFO L495 AbstractCegarLoop]: Abstraction has 4579 states and 6547 transitions. [2022-11-20 20:29:53,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 20:29:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4579 states and 6547 transitions. [2022-11-20 20:29:53,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 20:29:53,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:29:53,736 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 20:29:53,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:53,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:53,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:29:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:29:53,960 INFO L85 PathProgramCache]: Analyzing trace with hash -368640789, now seen corresponding path program 1 times [2022-11-20 20:29:53,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:29:53,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340743839] [2022-11-20 20:29:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:53,961 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 20:29:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:29:53,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:53,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:29:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:55,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 20:29:55,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 20:29:55,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:29:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-20 20:29:56,225 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:56,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340743839] [2022-11-20 20:29:56,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340743839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:29:56,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1972204121] [2022-11-20 20:29:56,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:56,226 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:29:56,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:29:56,229 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:29:56,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-20 20:29:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:57,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 20:29:57,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 20:29:58,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:58,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1972204121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:58,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:29:58,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 13 [2022-11-20 20:29:58,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250877504] [2022-11-20 20:29:58,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:58,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:29:58,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:58,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:29:58,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:29:58,517 INFO L87 Difference]: Start difference. First operand 4579 states and 6547 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 20:30:03,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:03,986 INFO L93 Difference]: Finished difference Result 11291 states and 16198 transitions. [2022-11-20 20:30:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:30:03,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2022-11-20 20:30:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:04,037 INFO L225 Difference]: With dead ends: 11291 [2022-11-20 20:30:04,037 INFO L226 Difference]: Without dead ends: 6733 [2022-11-20 20:30:04,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-20 20:30:04,070 INFO L413 NwaCegarLoop]: 3795 mSDtfsCounter, 2947 mSDsluCounter, 12099 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 15894 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:04,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 15894 Invalid, 1233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-20 20:30:04,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2022-11-20 20:30:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 6673. [2022-11-20 20:30:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6673 states, 4321 states have (on average 1.2737792177736635) internal successors, (5504), 4498 states have internal predecessors, (5504), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2022-11-20 20:30:05,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6673 states to 6673 states and 9441 transitions. [2022-11-20 20:30:05,050 INFO L78 Accepts]: Start accepts. Automaton has 6673 states and 9441 transitions. Word has length 120 [2022-11-20 20:30:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:05,051 INFO L495 AbstractCegarLoop]: Abstraction has 6673 states and 9441 transitions. [2022-11-20 20:30:05,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 20:30:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 6673 states and 9441 transitions. [2022-11-20 20:30:05,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 20:30:05,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:05,054 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 20:30:05,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:05,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:05,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:05,467 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:05,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:05,468 INFO L85 PathProgramCache]: Analyzing trace with hash -368581207, now seen corresponding path program 1 times [2022-11-20 20:30:05,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:05,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057174527] [2022-11-20 20:30:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:05,469 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 20:30:05,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:05,470 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:05,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:06,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 20:30:06,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 20:30:07,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:30:07,758 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-20 20:30:07,759 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:07,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057174527] [2022-11-20 20:30:07,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057174527] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:30:07,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [96215062] [2022-11-20 20:30:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:07,759 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:30:07,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:30:07,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:30:07,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-20 20:30:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:11,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 20:30:11,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-20 20:30:11,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:11,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [96215062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:11,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:30:11,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8] total 13 [2022-11-20 20:30:11,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689489907] [2022-11-20 20:30:11,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:11,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:30:11,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:11,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:30:11,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:30:11,704 INFO L87 Difference]: Start difference. First operand 6673 states and 9441 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:30:12,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:12,926 INFO L93 Difference]: Finished difference Result 14407 states and 20521 transitions. [2022-11-20 20:30:12,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:30:12,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 120 [2022-11-20 20:30:12,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:12,967 INFO L225 Difference]: With dead ends: 14407 [2022-11-20 20:30:12,967 INFO L226 Difference]: Without dead ends: 7751 [2022-11-20 20:30:13,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-20 20:30:13,001 INFO L413 NwaCegarLoop]: 4271 mSDtfsCounter, 518 mSDsluCounter, 16298 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 20569 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:13,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 20569 Invalid, 50 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:30:13,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7751 states. [2022-11-20 20:30:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7751 to 6673. [2022-11-20 20:30:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6673 states, 4321 states have (on average 1.2735477898634575) internal successors, (5503), 4497 states have internal predecessors, (5503), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2022-11-20 20:30:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6673 states to 6673 states and 9440 transitions. [2022-11-20 20:30:13,904 INFO L78 Accepts]: Start accepts. Automaton has 6673 states and 9440 transitions. Word has length 120 [2022-11-20 20:30:13,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:13,904 INFO L495 AbstractCegarLoop]: Abstraction has 6673 states and 9440 transitions. [2022-11-20 20:30:13,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 20:30:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 6673 states and 9440 transitions. [2022-11-20 20:30:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 20:30:13,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:13,907 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 20:30:13,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:14,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:14,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:30:14,322 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:14,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1246427258, now seen corresponding path program 1 times [2022-11-20 20:30:14,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:14,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539221258] [2022-11-20 20:30:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:14,325 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 20:30:14,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:14,327 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:14,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (12)] Waiting until timeout for monitored process [2022-11-20 20:30:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:16,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:30:16,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 20:30:16,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:16,302 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:16,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539221258] [2022-11-20 20:30:16,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539221258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:16,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:16,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:30:16,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613026914] [2022-11-20 20:30:16,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:16,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:30:16,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:16,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:30:16,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:30:16,305 INFO L87 Difference]: Start difference. First operand 6673 states and 9440 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:30:16,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:16,966 INFO L93 Difference]: Finished difference Result 6707 states and 9480 transitions. [2022-11-20 20:30:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:30:16,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2022-11-20 20:30:16,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:17,007 INFO L225 Difference]: With dead ends: 6707 [2022-11-20 20:30:17,007 INFO L226 Difference]: Without dead ends: 6705 [2022-11-20 20:30:17,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:30:17,014 INFO L413 NwaCegarLoop]: 3404 mSDtfsCounter, 31 mSDsluCounter, 6803 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10207 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:17,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10207 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:30:17,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-11-20 20:30:17,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 6677. [2022-11-20 20:30:17,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 4325 states have (on average 1.2728323699421966) internal successors, (5505), 4501 states have internal predecessors, (5505), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2022-11-20 20:30:17,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 9442 transitions. [2022-11-20 20:30:17,955 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 9442 transitions. Word has length 124 [2022-11-20 20:30:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:17,956 INFO L495 AbstractCegarLoop]: Abstraction has 6677 states and 9442 transitions. [2022-11-20 20:30:17,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:30:17,957 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 9442 transitions. [2022-11-20 20:30:17,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 20:30:17,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:17,959 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-11-20 20:30:17,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (12)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:18,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:18,178 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1855642534, now seen corresponding path program 1 times [2022-11-20 20:30:18,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:18,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474620593] [2022-11-20 20:30:18,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:18,180 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 20:30:18,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:18,181 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:18,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (13)] Waiting until timeout for monitored process [2022-11-20 20:30:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:19,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-20 20:30:19,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 59 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:30:19,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:30:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 20:30:20,306 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:20,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474620593] [2022-11-20 20:30:20,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474620593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:30:20,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [752483372] [2022-11-20 20:30:20,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:20,307 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:30:20,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:30:20,308 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:30:20,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-20 20:30:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:21,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:30:21,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-20 20:30:21,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:21,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [752483372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:21,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:30:21,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [19, 19] total 23 [2022-11-20 20:30:21,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321093536] [2022-11-20 20:30:21,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:21,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:30:21,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:21,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:30:21,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2022-11-20 20:30:21,962 INFO L87 Difference]: Start difference. First operand 6677 states and 9442 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 20:30:22,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:22,596 INFO L93 Difference]: Finished difference Result 13327 states and 18853 transitions. [2022-11-20 20:30:22,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:30:22,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2022-11-20 20:30:22,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:22,630 INFO L225 Difference]: With dead ends: 13327 [2022-11-20 20:30:22,631 INFO L226 Difference]: Without dead ends: 6671 [2022-11-20 20:30:22,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2022-11-20 20:30:22,662 INFO L413 NwaCegarLoop]: 3399 mSDtfsCounter, 3384 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:22,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3384 Valid, 3399 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:30:22,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2022-11-20 20:30:23,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 6671. [2022-11-20 20:30:23,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6671 states, 4320 states have (on average 1.2722222222222221) internal successors, (5496), 4495 states have internal predecessors, (5496), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2022-11-20 20:30:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6671 states to 6671 states and 9433 transitions. [2022-11-20 20:30:23,845 INFO L78 Accepts]: Start accepts. Automaton has 6671 states and 9433 transitions. Word has length 113 [2022-11-20 20:30:23,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:23,849 INFO L495 AbstractCegarLoop]: Abstraction has 6671 states and 9433 transitions. [2022-11-20 20:30:23,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 20:30:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6671 states and 9433 transitions. [2022-11-20 20:30:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 20:30:23,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:23,853 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 20:30:23,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (13)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:24,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:24,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:30:24,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:24,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:24,267 INFO L85 PathProgramCache]: Analyzing trace with hash -309463520, now seen corresponding path program 1 times [2022-11-20 20:30:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:24,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28827566] [2022-11-20 20:30:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:24,270 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 20:30:24,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:24,272 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:24,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (15)] Waiting until timeout for monitored process [2022-11-20 20:30:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:25,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:30:25,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:30:26,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:26,196 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:26,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28827566] [2022-11-20 20:30:26,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28827566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:26,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:26,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:26,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220821114] [2022-11-20 20:30:26,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:26,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:30:26,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:26,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:30:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:30:26,199 INFO L87 Difference]: Start difference. First operand 6671 states and 9433 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:30:26,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:26,805 INFO L93 Difference]: Finished difference Result 6671 states and 9433 transitions. [2022-11-20 20:30:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:30:26,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2022-11-20 20:30:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:26,839 INFO L225 Difference]: With dead ends: 6671 [2022-11-20 20:30:26,839 INFO L226 Difference]: Without dead ends: 6669 [2022-11-20 20:30:26,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:30:26,844 INFO L413 NwaCegarLoop]: 3396 mSDtfsCounter, 3311 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 6790 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:26,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3313 Valid, 6790 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:30:26,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6669 states. [2022-11-20 20:30:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6669 to 6669. [2022-11-20 20:30:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6669 states, 4319 states have (on average 1.272053716137995) internal successors, (5494), 4493 states have internal predecessors, (5494), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2022-11-20 20:30:27,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 9431 transitions. [2022-11-20 20:30:27,985 INFO L78 Accepts]: Start accepts. Automaton has 6669 states and 9431 transitions. Word has length 102 [2022-11-20 20:30:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:27,988 INFO L495 AbstractCegarLoop]: Abstraction has 6669 states and 9431 transitions. [2022-11-20 20:30:27,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:30:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6669 states and 9431 transitions. [2022-11-20 20:30:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 20:30:27,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:27,992 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 20:30:28,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (15)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:28,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:28,206 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting kzallocErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:28,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:28,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1233179084, now seen corresponding path program 1 times [2022-11-20 20:30:28,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:28,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215709804] [2022-11-20 20:30:28,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:28,208 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 20:30:28,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:28,209 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:28,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (16)] Waiting until timeout for monitored process [2022-11-20 20:30:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:29,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:30:29,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:30,105 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 20:30:30,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:30,106 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:30,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215709804] [2022-11-20 20:30:30,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215709804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:30,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:30,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:30:30,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223924629] [2022-11-20 20:30:30,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:30,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:30:30,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:30:30,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:30:30,108 INFO L87 Difference]: Start difference. First operand 6669 states and 9431 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:30:30,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:30,754 INFO L93 Difference]: Finished difference Result 13307 states and 19029 transitions. [2022-11-20 20:30:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:30:30,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2022-11-20 20:30:30,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:30,787 INFO L225 Difference]: With dead ends: 13307 [2022-11-20 20:30:30,788 INFO L226 Difference]: Without dead ends: 6659 [2022-11-20 20:30:30,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 20:30:30,821 INFO L413 NwaCegarLoop]: 3392 mSDtfsCounter, 3315 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3315 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:30,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3315 Valid, 3392 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:30:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6659 states. [2022-11-20 20:30:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6659 to 6659. [2022-11-20 20:30:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6659 states, 4310 states have (on average 1.2707656612529001) internal successors, (5477), 4483 states have internal predecessors, (5477), 1916 states have call successors, (1916), 419 states have call predecessors, (1916), 413 states have return successors, (2021), 1860 states have call predecessors, (2021), 1914 states have call successors, (2021) [2022-11-20 20:30:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6659 states to 6659 states and 9414 transitions. [2022-11-20 20:30:31,845 INFO L78 Accepts]: Start accepts. Automaton has 6659 states and 9414 transitions. Word has length 128 [2022-11-20 20:30:31,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:31,846 INFO L495 AbstractCegarLoop]: Abstraction has 6659 states and 9414 transitions. [2022-11-20 20:30:31,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 20:30:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 6659 states and 9414 transitions. [2022-11-20 20:30:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 20:30:31,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:31,848 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2022-11-20 20:30:31,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (16)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:32,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:32,075 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:32,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:32,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2048107651, now seen corresponding path program 1 times [2022-11-20 20:30:32,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:32,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684057056] [2022-11-20 20:30:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:32,077 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 20:30:32,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:32,078 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:32,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (17)] Waiting until timeout for monitored process [2022-11-20 20:30:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:33,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-20 20:30:33,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 59 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:30:34,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:30:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 20:30:34,503 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:34,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684057056] [2022-11-20 20:30:34,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684057056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:30:34,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1583719584] [2022-11-20 20:30:34,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:34,504 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:30:34,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:30:34,507 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:30:34,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-20 20:30:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:39,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 20:30:39,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:39,353 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 20:30:39,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:39,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1583719584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:39,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:30:39,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [19, 19] total 22 [2022-11-20 20:30:39,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579373726] [2022-11-20 20:30:39,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:39,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 20:30:39,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:39,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 20:30:39,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2022-11-20 20:30:39,356 INFO L87 Difference]: Start difference. First operand 6659 states and 9414 transitions. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 6 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-20 20:30:41,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:41,547 INFO L93 Difference]: Finished difference Result 12804 states and 18042 transitions. [2022-11-20 20:30:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 20:30:41,548 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 6 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 119 [2022-11-20 20:30:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:41,579 INFO L225 Difference]: With dead ends: 12804 [2022-11-20 20:30:41,580 INFO L226 Difference]: Without dead ends: 6712 [2022-11-20 20:30:41,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2022-11-20 20:30:41,606 INFO L413 NwaCegarLoop]: 3376 mSDtfsCounter, 56 mSDsluCounter, 40247 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 43623 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:41,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 43623 Invalid, 786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 20:30:41,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2022-11-20 20:30:42,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 6683. [2022-11-20 20:30:42,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4326 states have (on average 1.2697642163661582) internal successors, (5493), 4499 states have internal predecessors, (5493), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:30:42,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9446 transitions. [2022-11-20 20:30:42,509 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9446 transitions. Word has length 119 [2022-11-20 20:30:42,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:42,509 INFO L495 AbstractCegarLoop]: Abstraction has 6683 states and 9446 transitions. [2022-11-20 20:30:42,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 6 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-20 20:30:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9446 transitions. [2022-11-20 20:30:42,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 20:30:42,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:42,512 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 20:30:42,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (17)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:42,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:42,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:30:42,927 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash -22556771, now seen corresponding path program 1 times [2022-11-20 20:30:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:42,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945215882] [2022-11-20 20:30:42,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:42,929 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 20:30:42,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:42,930 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:42,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (19)] Waiting until timeout for monitored process [2022-11-20 20:30:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:44,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:30:44,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:30:44,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:44,547 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:44,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945215882] [2022-11-20 20:30:44,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945215882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:44,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:44,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:44,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201977405] [2022-11-20 20:30:44,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:44,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:30:44,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:30:44,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:30:44,552 INFO L87 Difference]: Start difference. First operand 6683 states and 9446 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:30:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:45,160 INFO L93 Difference]: Finished difference Result 6683 states and 9446 transitions. [2022-11-20 20:30:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:30:45,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108 [2022-11-20 20:30:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:45,197 INFO L225 Difference]: With dead ends: 6683 [2022-11-20 20:30:45,197 INFO L226 Difference]: Without dead ends: 6681 [2022-11-20 20:30:45,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:30:45,204 INFO L413 NwaCegarLoop]: 3389 mSDtfsCounter, 3302 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3304 SdHoareTripleChecker+Valid, 6772 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:45,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3304 Valid, 6772 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:30:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2022-11-20 20:30:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6681. [2022-11-20 20:30:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 4325 states have (on average 1.2695953757225433) internal successors, (5491), 4497 states have internal predecessors, (5491), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:30:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9444 transitions. [2022-11-20 20:30:46,513 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9444 transitions. Word has length 108 [2022-11-20 20:30:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:46,513 INFO L495 AbstractCegarLoop]: Abstraction has 6681 states and 9444 transitions. [2022-11-20 20:30:46,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:30:46,514 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9444 transitions. [2022-11-20 20:30:46,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-20 20:30:46,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:46,517 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:46,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (19)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:46,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:46,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:46,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:46,719 INFO L85 PathProgramCache]: Analyzing trace with hash -202058560, now seen corresponding path program 1 times [2022-11-20 20:30:46,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:46,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729056250] [2022-11-20 20:30:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:46,721 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 20:30:46,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:46,722 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:46,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (20)] Waiting until timeout for monitored process [2022-11-20 20:30:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:47,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:30:47,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:30:48,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:48,287 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:48,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729056250] [2022-11-20 20:30:48,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729056250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:48,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:48,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:48,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994343606] [2022-11-20 20:30:48,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:48,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:30:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:48,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:30:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:30:48,289 INFO L87 Difference]: Start difference. First operand 6681 states and 9444 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:30:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:49,117 INFO L93 Difference]: Finished difference Result 6681 states and 9444 transitions. [2022-11-20 20:30:49,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:30:49,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2022-11-20 20:30:49,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:49,142 INFO L225 Difference]: With dead ends: 6681 [2022-11-20 20:30:49,143 INFO L226 Difference]: Without dead ends: 6679 [2022-11-20 20:30:49,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:30:49,148 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 3294 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 6772 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:49,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3296 Valid, 6772 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:30:49,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2022-11-20 20:30:49,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2022-11-20 20:30:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 4324 states have (on average 1.269426456984274) internal successors, (5489), 4495 states have internal predecessors, (5489), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:30:50,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 9442 transitions. [2022-11-20 20:30:50,005 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 9442 transitions. Word has length 110 [2022-11-20 20:30:50,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:50,005 INFO L495 AbstractCegarLoop]: Abstraction has 6679 states and 9442 transitions. [2022-11-20 20:30:50,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 20:30:50,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 9442 transitions. [2022-11-20 20:30:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 20:30:50,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:50,008 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:50,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (20)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:50,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:50,215 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:50,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:50,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1796475551, now seen corresponding path program 1 times [2022-11-20 20:30:50,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:50,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874295202] [2022-11-20 20:30:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:50,217 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 20:30:50,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:50,223 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:50,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (21)] Waiting until timeout for monitored process [2022-11-20 20:30:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:51,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:30:51,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:30:51,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:51,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:51,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874295202] [2022-11-20 20:30:51,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874295202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:51,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:51,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:30:51,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181822873] [2022-11-20 20:30:51,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:51,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:30:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:30:51,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:30:51,914 INFO L87 Difference]: Start difference. First operand 6679 states and 9442 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 20:30:52,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:52,684 INFO L93 Difference]: Finished difference Result 6679 states and 9442 transitions. [2022-11-20 20:30:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:30:52,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 116 [2022-11-20 20:30:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:52,701 INFO L225 Difference]: With dead ends: 6679 [2022-11-20 20:30:52,701 INFO L226 Difference]: Without dead ends: 6677 [2022-11-20 20:30:52,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:30:52,704 INFO L413 NwaCegarLoop]: 3385 mSDtfsCounter, 3286 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3288 SdHoareTripleChecker+Valid, 6768 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:52,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3288 Valid, 6768 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:30:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2022-11-20 20:30:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677. [2022-11-20 20:30:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 4323 states have (on average 1.2692574600971547) internal successors, (5487), 4493 states have internal predecessors, (5487), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:30:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 9440 transitions. [2022-11-20 20:30:53,659 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 9440 transitions. Word has length 116 [2022-11-20 20:30:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:53,660 INFO L495 AbstractCegarLoop]: Abstraction has 6677 states and 9440 transitions. [2022-11-20 20:30:53,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 20:30:53,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 9440 transitions. [2022-11-20 20:30:53,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 20:30:53,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:53,663 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:53,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (21)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:53,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:53,864 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:53,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:53,865 INFO L85 PathProgramCache]: Analyzing trace with hash -739198540, now seen corresponding path program 1 times [2022-11-20 20:30:53,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:53,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906198454] [2022-11-20 20:30:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:53,867 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 20:30:53,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:53,868 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:53,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (22)] Waiting until timeout for monitored process [2022-11-20 20:30:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:30:55,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:30:55,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:30:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 20:30:55,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:30:55,526 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:30:55,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906198454] [2022-11-20 20:30:55,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906198454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:30:55,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:30:55,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 20:30:55,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193845612] [2022-11-20 20:30:55,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:30:55,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 20:30:55,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:30:55,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 20:30:55,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:30:55,529 INFO L87 Difference]: Start difference. First operand 6677 states and 9440 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:30:57,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:30:57,544 INFO L93 Difference]: Finished difference Result 13924 states and 19780 transitions. [2022-11-20 20:30:57,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 20:30:57,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 135 [2022-11-20 20:30:57,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:30:57,567 INFO L225 Difference]: With dead ends: 13924 [2022-11-20 20:30:57,567 INFO L226 Difference]: Without dead ends: 7437 [2022-11-20 20:30:57,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-20 20:30:57,587 INFO L413 NwaCegarLoop]: 3681 mSDtfsCounter, 354 mSDsluCounter, 25335 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 29016 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:30:57,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 29016 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 20:30:57,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7437 states. [2022-11-20 20:30:58,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7437 to 6681. [2022-11-20 20:30:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 4327 states have (on average 1.269008550959094) internal successors, (5491), 4497 states have internal predecessors, (5491), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:30:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9444 transitions. [2022-11-20 20:30:58,611 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9444 transitions. Word has length 135 [2022-11-20 20:30:58,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:30:58,612 INFO L495 AbstractCegarLoop]: Abstraction has 6681 states and 9444 transitions. [2022-11-20 20:30:58,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 20:30:58,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9444 transitions. [2022-11-20 20:30:58,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 20:30:58,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:30:58,614 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:30:58,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (22)] Forceful destruction successful, exit code 0 [2022-11-20 20:30:58,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:58,823 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:30:58,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:30:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash 942750478, now seen corresponding path program 1 times [2022-11-20 20:30:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:30:58,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68326349] [2022-11-20 20:30:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:30:58,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:30:58,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:30:58,826 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:30:58,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (23)] Waiting until timeout for monitored process [2022-11-20 20:31:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:00,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:00,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:31:00,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:00,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:00,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68326349] [2022-11-20 20:31:00,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68326349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:00,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:00,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:00,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045647699] [2022-11-20 20:31:00,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:00,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:00,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:00,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:00,433 INFO L87 Difference]: Start difference. First operand 6681 states and 9444 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 20:31:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:01,281 INFO L93 Difference]: Finished difference Result 6681 states and 9444 transitions. [2022-11-20 20:31:01,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:01,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2022-11-20 20:31:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:01,299 INFO L225 Difference]: With dead ends: 6681 [2022-11-20 20:31:01,299 INFO L226 Difference]: Without dead ends: 6679 [2022-11-20 20:31:01,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:01,302 INFO L413 NwaCegarLoop]: 3383 mSDtfsCounter, 3278 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 6764 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:01,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3280 Valid, 6764 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2022-11-20 20:31:02,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2022-11-20 20:31:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 4326 states have (on average 1.2688395746648173) internal successors, (5489), 4495 states have internal predecessors, (5489), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:31:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 9442 transitions. [2022-11-20 20:31:02,245 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 9442 transitions. Word has length 122 [2022-11-20 20:31:02,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:02,245 INFO L495 AbstractCegarLoop]: Abstraction has 6679 states and 9442 transitions. [2022-11-20 20:31:02,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 20:31:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 9442 transitions. [2022-11-20 20:31:02,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 20:31:02,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:02,247 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:31:02,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (23)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:02,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:02,448 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:02,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:02,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1649869559, now seen corresponding path program 1 times [2022-11-20 20:31:02,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:02,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400710030] [2022-11-20 20:31:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:02,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:31:02,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:02,452 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:02,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (24)] Waiting until timeout for monitored process [2022-11-20 20:31:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:03,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 1611 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:03,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:31:04,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:04,050 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:04,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400710030] [2022-11-20 20:31:04,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400710030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:04,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:04,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:04,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188305123] [2022-11-20 20:31:04,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:04,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:04,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:04,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:04,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:04,053 INFO L87 Difference]: Start difference. First operand 6679 states and 9442 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:31:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:04,922 INFO L93 Difference]: Finished difference Result 6679 states and 9442 transitions. [2022-11-20 20:31:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:04,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 128 [2022-11-20 20:31:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:04,954 INFO L225 Difference]: With dead ends: 6679 [2022-11-20 20:31:04,955 INFO L226 Difference]: Without dead ends: 6677 [2022-11-20 20:31:04,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:04,959 INFO L413 NwaCegarLoop]: 3381 mSDtfsCounter, 3270 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 6760 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:04,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 6760 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:04,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2022-11-20 20:31:06,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677. [2022-11-20 20:31:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 4325 states have (on average 1.2686705202312138) internal successors, (5487), 4493 states have internal predecessors, (5487), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:31:06,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 9440 transitions. [2022-11-20 20:31:06,132 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 9440 transitions. Word has length 128 [2022-11-20 20:31:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:06,133 INFO L495 AbstractCegarLoop]: Abstraction has 6677 states and 9440 transitions. [2022-11-20 20:31:06,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 20:31:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 9440 transitions. [2022-11-20 20:31:06,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 20:31:06,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:06,136 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:31:06,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (24)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:06,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:06,347 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:06,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:06,347 INFO L85 PathProgramCache]: Analyzing trace with hash 538270320, now seen corresponding path program 1 times [2022-11-20 20:31:06,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:06,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895460145] [2022-11-20 20:31:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:06,348 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 20:31:06,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:06,349 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:06,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (25)] Waiting until timeout for monitored process [2022-11-20 20:31:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:07,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:07,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:31:08,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:08,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:08,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895460145] [2022-11-20 20:31:08,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895460145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:08,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:08,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:08,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89245837] [2022-11-20 20:31:08,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:08,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:08,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:08,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:08,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:08,039 INFO L87 Difference]: Start difference. First operand 6677 states and 9440 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 20:31:08,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:08,951 INFO L93 Difference]: Finished difference Result 6677 states and 9440 transitions. [2022-11-20 20:31:08,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:08,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2022-11-20 20:31:08,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:08,976 INFO L225 Difference]: With dead ends: 6677 [2022-11-20 20:31:08,976 INFO L226 Difference]: Without dead ends: 6675 [2022-11-20 20:31:08,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:08,980 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 3262 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 6756 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:08,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 6756 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:08,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2022-11-20 20:31:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6675. [2022-11-20 20:31:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 4324 states have (on average 1.2685013876040703) internal successors, (5485), 4491 states have internal predecessors, (5485), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:31:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 9438 transitions. [2022-11-20 20:31:09,976 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 9438 transitions. Word has length 134 [2022-11-20 20:31:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:09,976 INFO L495 AbstractCegarLoop]: Abstraction has 6675 states and 9438 transitions. [2022-11-20 20:31:09,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 20:31:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 9438 transitions. [2022-11-20 20:31:09,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-20 20:31:09,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:09,978 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:31:10,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (25)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:10,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:10,186 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:10,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash -581283363, now seen corresponding path program 1 times [2022-11-20 20:31:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:10,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033874595] [2022-11-20 20:31:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:10,188 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 20:31:10,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:10,189 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:10,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (26)] Waiting until timeout for monitored process [2022-11-20 20:31:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:11,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:31:11,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-20 20:31:11,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:11,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:11,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033874595] [2022-11-20 20:31:11,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033874595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:11,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:11,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:31:11,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058926525] [2022-11-20 20:31:11,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:11,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:31:11,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:11,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:31:11,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:31:11,975 INFO L87 Difference]: Start difference. First operand 6675 states and 9438 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 20:31:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:13,514 INFO L93 Difference]: Finished difference Result 13333 states and 19056 transitions. [2022-11-20 20:31:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:31:13,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 163 [2022-11-20 20:31:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:13,541 INFO L225 Difference]: With dead ends: 13333 [2022-11-20 20:31:13,541 INFO L226 Difference]: Without dead ends: 6683 [2022-11-20 20:31:13,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:31:13,577 INFO L413 NwaCegarLoop]: 3342 mSDtfsCounter, 3 mSDsluCounter, 13322 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16664 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:13,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16664 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:31:13,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6683 states. [2022-11-20 20:31:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6683 to 6675. [2022-11-20 20:31:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 4324 states have (on average 1.2675763182238668) internal successors, (5481), 4491 states have internal predecessors, (5481), 1924 states have call successors, (1924), 419 states have call predecessors, (1924), 413 states have return successors, (2029), 1868 states have call predecessors, (2029), 1922 states have call successors, (2029) [2022-11-20 20:31:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 9434 transitions. [2022-11-20 20:31:14,600 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 9434 transitions. Word has length 163 [2022-11-20 20:31:14,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:14,601 INFO L495 AbstractCegarLoop]: Abstraction has 6675 states and 9434 transitions. [2022-11-20 20:31:14,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-20 20:31:14,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 9434 transitions. [2022-11-20 20:31:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-20 20:31:14,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:14,603 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:31:14,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (26)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:14,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:14,803 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash 312202975, now seen corresponding path program 1 times [2022-11-20 20:31:14,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:14,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031417262] [2022-11-20 20:31:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:14,805 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 20:31:14,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:14,806 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:14,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (27)] Waiting until timeout for monitored process [2022-11-20 20:31:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:16,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-20 20:31:16,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:17,318 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-20 20:31:17,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:17,318 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:17,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031417262] [2022-11-20 20:31:17,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031417262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:17,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:17,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 20:31:17,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177365048] [2022-11-20 20:31:17,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:17,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 20:31:17,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:17,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 20:31:17,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-20 20:31:17,320 INFO L87 Difference]: Start difference. First operand 6675 states and 9434 transitions. Second operand has 14 states, 12 states have (on average 5.75) internal successors, (69), 10 states have internal predecessors, (69), 4 states have call successors, (24), 2 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 20:31:18,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:31:22,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:22,404 INFO L93 Difference]: Finished difference Result 13773 states and 19717 transitions. [2022-11-20 20:31:22,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 20:31:22,405 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.75) internal successors, (69), 10 states have internal predecessors, (69), 4 states have call successors, (24), 2 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 163 [2022-11-20 20:31:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:22,435 INFO L225 Difference]: With dead ends: 13773 [2022-11-20 20:31:22,435 INFO L226 Difference]: Without dead ends: 7123 [2022-11-20 20:31:22,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-11-20 20:31:22,455 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 316 mSDsluCounter, 40041 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 43402 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:22,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 43402 Invalid, 855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 20:31:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7123 states. [2022-11-20 20:31:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7123 to 6705. [2022-11-20 20:31:23,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6705 states, 4343 states have (on average 1.2664057103384756) internal successors, (5500), 4513 states have internal predecessors, (5500), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2022-11-20 20:31:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 9472 transitions. [2022-11-20 20:31:23,599 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 9472 transitions. Word has length 163 [2022-11-20 20:31:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:23,599 INFO L495 AbstractCegarLoop]: Abstraction has 6705 states and 9472 transitions. [2022-11-20 20:31:23,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.75) internal successors, (69), 10 states have internal predecessors, (69), 4 states have call successors, (24), 2 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 20:31:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 9472 transitions. [2022-11-20 20:31:23,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-20 20:31:23,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:23,601 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:23,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (27)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:23,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:23,802 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -599736421, now seen corresponding path program 1 times [2022-11-20 20:31:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824413043] [2022-11-20 20:31:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:23,803 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 20:31:23,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:23,804 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:23,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (28)] Waiting until timeout for monitored process [2022-11-20 20:31:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:25,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:25,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:31:25,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:25,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:25,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824413043] [2022-11-20 20:31:25,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824413043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:25,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:25,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:25,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969277399] [2022-11-20 20:31:25,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:25,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:25,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:25,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:25,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:25,459 INFO L87 Difference]: Start difference. First operand 6705 states and 9472 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 20:31:26,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:26,446 INFO L93 Difference]: Finished difference Result 6705 states and 9472 transitions. [2022-11-20 20:31:26,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:26,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 140 [2022-11-20 20:31:26,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:26,471 INFO L225 Difference]: With dead ends: 6705 [2022-11-20 20:31:26,471 INFO L226 Difference]: Without dead ends: 6703 [2022-11-20 20:31:26,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:26,474 INFO L413 NwaCegarLoop]: 3376 mSDtfsCounter, 3253 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3255 SdHoareTripleChecker+Valid, 6750 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:26,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3255 Valid, 6750 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-11-20 20:31:27,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6703. [2022-11-20 20:31:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 4342 states have (on average 1.2662367572547213) internal successors, (5498), 4511 states have internal predecessors, (5498), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2022-11-20 20:31:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 9470 transitions. [2022-11-20 20:31:27,645 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 9470 transitions. Word has length 140 [2022-11-20 20:31:27,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:27,646 INFO L495 AbstractCegarLoop]: Abstraction has 6703 states and 9470 transitions. [2022-11-20 20:31:27,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 20:31:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 9470 transitions. [2022-11-20 20:31:27,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-20 20:31:27,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:27,647 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:31:27,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (28)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:27,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:27,848 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:27,848 INFO L85 PathProgramCache]: Analyzing trace with hash -956651443, now seen corresponding path program 1 times [2022-11-20 20:31:27,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:27,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424177616] [2022-11-20 20:31:27,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:27,850 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 20:31:27,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:27,851 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:27,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (29)] Waiting until timeout for monitored process [2022-11-20 20:31:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:29,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 1899 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:29,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-20 20:31:29,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:29,718 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:29,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424177616] [2022-11-20 20:31:29,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424177616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:29,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:29,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:29,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134073878] [2022-11-20 20:31:29,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:29,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:31:29,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:29,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:31:29,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:31:29,720 INFO L87 Difference]: Start difference. First operand 6703 states and 9470 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:31:30,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:30,924 INFO L93 Difference]: Finished difference Result 13375 states and 18905 transitions. [2022-11-20 20:31:30,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:31:30,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2022-11-20 20:31:30,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:30,951 INFO L225 Difference]: With dead ends: 13375 [2022-11-20 20:31:30,951 INFO L226 Difference]: Without dead ends: 6697 [2022-11-20 20:31:30,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 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 20:31:30,973 INFO L413 NwaCegarLoop]: 3372 mSDtfsCounter, 3314 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:30,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 3372 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:31:30,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6697 states. [2022-11-20 20:31:32,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6697 to 6697. [2022-11-20 20:31:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 4337 states have (on average 1.2656213972792252) internal successors, (5489), 4505 states have internal predecessors, (5489), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2022-11-20 20:31:32,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9461 transitions. [2022-11-20 20:31:32,081 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9461 transitions. Word has length 164 [2022-11-20 20:31:32,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:32,081 INFO L495 AbstractCegarLoop]: Abstraction has 6697 states and 9461 transitions. [2022-11-20 20:31:32,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:31:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9461 transitions. [2022-11-20 20:31:32,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-20 20:31:32,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:32,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:32,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (29)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:32,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:32,307 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:32,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:32,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1767962135, now seen corresponding path program 1 times [2022-11-20 20:31:32,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:32,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187938733] [2022-11-20 20:31:32,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:32,309 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 20:31:32,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:32,309 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:32,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (30)] Waiting until timeout for monitored process [2022-11-20 20:31:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:33,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:33,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:31:34,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:34,013 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:34,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187938733] [2022-11-20 20:31:34,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187938733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:34,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:34,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:34,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979088791] [2022-11-20 20:31:34,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:34,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:34,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:34,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:34,016 INFO L87 Difference]: Start difference. First operand 6697 states and 9461 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 20:31:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:35,349 INFO L93 Difference]: Finished difference Result 6697 states and 9461 transitions. [2022-11-20 20:31:35,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:35,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 146 [2022-11-20 20:31:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:35,374 INFO L225 Difference]: With dead ends: 6697 [2022-11-20 20:31:35,375 INFO L226 Difference]: Without dead ends: 6695 [2022-11-20 20:31:35,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:35,380 INFO L413 NwaCegarLoop]: 3369 mSDtfsCounter, 3240 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3242 SdHoareTripleChecker+Valid, 6736 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:35,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3242 Valid, 6736 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:35,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2022-11-20 20:31:36,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6695. [2022-11-20 20:31:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6695 states, 4336 states have (on average 1.2654520295202951) internal successors, (5487), 4503 states have internal predecessors, (5487), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2022-11-20 20:31:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6695 states to 6695 states and 9459 transitions. [2022-11-20 20:31:36,554 INFO L78 Accepts]: Start accepts. Automaton has 6695 states and 9459 transitions. Word has length 146 [2022-11-20 20:31:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:36,555 INFO L495 AbstractCegarLoop]: Abstraction has 6695 states and 9459 transitions. [2022-11-20 20:31:36,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 20:31:36,555 INFO L276 IsEmpty]: Start isEmpty. Operand 6695 states and 9459 transitions. [2022-11-20 20:31:36,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 20:31:36,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:36,558 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:36,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (30)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:36,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:36,771 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:36,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash -911789814, now seen corresponding path program 1 times [2022-11-20 20:31:36,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:36,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612813761] [2022-11-20 20:31:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:36,773 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 20:31:36,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:36,774 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:36,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (31)] Waiting until timeout for monitored process [2022-11-20 20:31:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:38,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:38,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:31:38,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:38,466 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:38,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612813761] [2022-11-20 20:31:38,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612813761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:38,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:38,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:38,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493842779] [2022-11-20 20:31:38,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:38,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:38,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:38,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:38,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:38,468 INFO L87 Difference]: Start difference. First operand 6695 states and 9459 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 20:31:39,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:39,530 INFO L93 Difference]: Finished difference Result 6695 states and 9459 transitions. [2022-11-20 20:31:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:39,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 152 [2022-11-20 20:31:39,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:39,552 INFO L225 Difference]: With dead ends: 6695 [2022-11-20 20:31:39,552 INFO L226 Difference]: Without dead ends: 6693 [2022-11-20 20:31:39,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:39,557 INFO L413 NwaCegarLoop]: 3367 mSDtfsCounter, 3232 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3234 SdHoareTripleChecker+Valid, 6732 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:39,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3234 Valid, 6732 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-11-20 20:31:40,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6693. [2022-11-20 20:31:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 4335 states have (on average 1.2652825836216839) internal successors, (5485), 4501 states have internal predecessors, (5485), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2022-11-20 20:31:40,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9457 transitions. [2022-11-20 20:31:40,699 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9457 transitions. Word has length 152 [2022-11-20 20:31:40,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:40,699 INFO L495 AbstractCegarLoop]: Abstraction has 6693 states and 9457 transitions. [2022-11-20 20:31:40,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 20:31:40,699 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9457 transitions. [2022-11-20 20:31:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-20 20:31:40,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:40,702 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:40,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (31)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:40,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:40,915 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:40,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1234259642, now seen corresponding path program 1 times [2022-11-20 20:31:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:40,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798313012] [2022-11-20 20:31:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:40,917 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 20:31:40,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:40,917 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:40,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (32)] Waiting until timeout for monitored process [2022-11-20 20:31:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:42,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1656 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:31:42,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:31:42,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:42,559 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:42,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798313012] [2022-11-20 20:31:42,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798313012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:42,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:42,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:31:42,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547705504] [2022-11-20 20:31:42,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:42,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:42,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:42,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:42,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:42,561 INFO L87 Difference]: Start difference. First operand 6693 states and 9457 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 20:31:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:43,671 INFO L93 Difference]: Finished difference Result 6693 states and 9457 transitions. [2022-11-20 20:31:43,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:43,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 158 [2022-11-20 20:31:43,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:43,691 INFO L225 Difference]: With dead ends: 6693 [2022-11-20 20:31:43,691 INFO L226 Difference]: Without dead ends: 6691 [2022-11-20 20:31:43,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:31:43,696 INFO L413 NwaCegarLoop]: 3365 mSDtfsCounter, 3224 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 6728 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:43,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3226 Valid, 6728 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:31:43,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-11-20 20:31:44,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 6691. [2022-11-20 20:31:44,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 4334 states have (on average 1.2651130595293032) internal successors, (5483), 4499 states have internal predecessors, (5483), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2022-11-20 20:31:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9455 transitions. [2022-11-20 20:31:44,859 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9455 transitions. Word has length 158 [2022-11-20 20:31:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:44,859 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 9455 transitions. [2022-11-20 20:31:44,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 20:31:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9455 transitions. [2022-11-20 20:31:44,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-20 20:31:44,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:44,861 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:44,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (32)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:45,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:45,062 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:45,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:45,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1664100271, now seen corresponding path program 1 times [2022-11-20 20:31:45,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:45,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284640606] [2022-11-20 20:31:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:45,064 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 20:31:45,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:45,066 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:45,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (33)] Waiting until timeout for monitored process [2022-11-20 20:31:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:47,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:31:47,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-20 20:31:47,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:47,103 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:47,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284640606] [2022-11-20 20:31:47,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284640606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:47,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:47,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:31:47,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101396068] [2022-11-20 20:31:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:47,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:31:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:31:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:31:47,106 INFO L87 Difference]: Start difference. First operand 6691 states and 9455 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:31:48,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:48,815 INFO L93 Difference]: Finished difference Result 13427 states and 19198 transitions. [2022-11-20 20:31:48,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:31:48,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 180 [2022-11-20 20:31:48,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:48,837 INFO L225 Difference]: With dead ends: 13427 [2022-11-20 20:31:48,837 INFO L226 Difference]: Without dead ends: 6761 [2022-11-20 20:31:48,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:31:48,856 INFO L413 NwaCegarLoop]: 3338 mSDtfsCounter, 21 mSDsluCounter, 13297 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 16635 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:48,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 16635 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:31:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6761 states. [2022-11-20 20:31:50,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6761 to 6691. [2022-11-20 20:31:50,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 4334 states have (on average 1.264190124596216) internal successors, (5479), 4499 states have internal predecessors, (5479), 1928 states have call successors, (1928), 419 states have call predecessors, (1928), 420 states have return successors, (2044), 1876 states have call predecessors, (2044), 1926 states have call successors, (2044) [2022-11-20 20:31:50,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9451 transitions. [2022-11-20 20:31:50,036 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9451 transitions. Word has length 180 [2022-11-20 20:31:50,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:50,036 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 9451 transitions. [2022-11-20 20:31:50,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:31:50,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9451 transitions. [2022-11-20 20:31:50,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-20 20:31:50,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:50,039 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:50,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (33)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:50,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:50,255 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:50,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1950808655, now seen corresponding path program 1 times [2022-11-20 20:31:50,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:50,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900770668] [2022-11-20 20:31:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:50,257 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 20:31:50,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:50,257 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:50,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (34)] Waiting until timeout for monitored process [2022-11-20 20:31:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:52,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:31:52,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-20 20:31:52,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:52,319 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:52,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900770668] [2022-11-20 20:31:52,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900770668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:52,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:52,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:31:52,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069184246] [2022-11-20 20:31:52,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:52,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:31:52,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:52,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:31:52,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:52,321 INFO L87 Difference]: Start difference. First operand 6691 states and 9451 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:31:54,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:54,328 INFO L93 Difference]: Finished difference Result 13505 states and 19310 transitions. [2022-11-20 20:31:54,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:31:54,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 180 [2022-11-20 20:31:54,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:54,352 INFO L225 Difference]: With dead ends: 13505 [2022-11-20 20:31:54,352 INFO L226 Difference]: Without dead ends: 6839 [2022-11-20 20:31:54,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:31:54,371 INFO L413 NwaCegarLoop]: 3381 mSDtfsCounter, 22 mSDsluCounter, 6720 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 10101 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:54,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 10101 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 20:31:54,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2022-11-20 20:31:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6787. [2022-11-20 20:31:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6787 states, 4410 states have (on average 1.2641723356009071) internal successors, (5575), 4575 states have internal predecessors, (5575), 1948 states have call successors, (1948), 419 states have call predecessors, (1948), 420 states have return successors, (2066), 1896 states have call predecessors, (2066), 1946 states have call successors, (2066) [2022-11-20 20:31:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6787 states to 6787 states and 9589 transitions. [2022-11-20 20:31:55,567 INFO L78 Accepts]: Start accepts. Automaton has 6787 states and 9589 transitions. Word has length 180 [2022-11-20 20:31:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:31:55,568 INFO L495 AbstractCegarLoop]: Abstraction has 6787 states and 9589 transitions. [2022-11-20 20:31:55,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:31:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6787 states and 9589 transitions. [2022-11-20 20:31:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-20 20:31:55,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:31:55,571 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:55,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (34)] Forceful destruction successful, exit code 0 [2022-11-20 20:31:55,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:55,787 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:31:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:31:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 800762014, now seen corresponding path program 1 times [2022-11-20 20:31:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:31:55,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058530084] [2022-11-20 20:31:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:31:55,789 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 20:31:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:31:55,789 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:31:55,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (35)] Waiting until timeout for monitored process [2022-11-20 20:31:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:31:57,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 2030 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:31:57,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:31:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-20 20:31:57,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:31:57,866 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:31:57,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058530084] [2022-11-20 20:31:57,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058530084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:31:57,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:31:57,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:31:57,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159568476] [2022-11-20 20:31:57,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:31:57,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:31:57,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:31:57,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:31:57,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:31:57,868 INFO L87 Difference]: Start difference. First operand 6787 states and 9589 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:31:59,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:31:59,704 INFO L93 Difference]: Finished difference Result 13619 states and 19466 transitions. [2022-11-20 20:31:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 20:31:59,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 181 [2022-11-20 20:31:59,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:31:59,727 INFO L225 Difference]: With dead ends: 13619 [2022-11-20 20:31:59,727 INFO L226 Difference]: Without dead ends: 6857 [2022-11-20 20:31:59,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:31:59,748 INFO L413 NwaCegarLoop]: 3342 mSDtfsCounter, 21 mSDsluCounter, 13309 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 16651 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:31:59,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 16651 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:31:59,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6857 states. [2022-11-20 20:32:00,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6857 to 6787. [2022-11-20 20:32:00,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6787 states, 4410 states have (on average 1.263265306122449) internal successors, (5571), 4575 states have internal predecessors, (5571), 1948 states have call successors, (1948), 419 states have call predecessors, (1948), 420 states have return successors, (2066), 1896 states have call predecessors, (2066), 1946 states have call successors, (2066) [2022-11-20 20:32:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6787 states to 6787 states and 9585 transitions. [2022-11-20 20:32:00,966 INFO L78 Accepts]: Start accepts. Automaton has 6787 states and 9585 transitions. Word has length 181 [2022-11-20 20:32:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:00,966 INFO L495 AbstractCegarLoop]: Abstraction has 6787 states and 9585 transitions. [2022-11-20 20:32:00,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:32:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6787 states and 9585 transitions. [2022-11-20 20:32:00,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-20 20:32:00,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:00,969 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:00,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (35)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:01,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:01,177 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:01,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1480820384, now seen corresponding path program 1 times [2022-11-20 20:32:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:01,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129728494] [2022-11-20 20:32:01,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:01,180 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 20:32:01,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:01,181 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:01,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (36)] Waiting until timeout for monitored process [2022-11-20 20:32:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:03,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2030 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:32:03,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-20 20:32:03,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:03,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:03,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129728494] [2022-11-20 20:32:03,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129728494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:03,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:03,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:32:03,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198088542] [2022-11-20 20:32:03,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:03,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:32:03,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:32:03,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:32:03,299 INFO L87 Difference]: Start difference. First operand 6787 states and 9585 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:32:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:04,935 INFO L93 Difference]: Finished difference Result 13693 states and 19570 transitions. [2022-11-20 20:32:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:32:04,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 181 [2022-11-20 20:32:04,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:04,967 INFO L225 Difference]: With dead ends: 13693 [2022-11-20 20:32:04,967 INFO L226 Difference]: Without dead ends: 6931 [2022-11-20 20:32:04,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:32:04,996 INFO L413 NwaCegarLoop]: 3380 mSDtfsCounter, 21 mSDsluCounter, 6720 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 10100 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:04,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 10100 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 20:32:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2022-11-20 20:32:06,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 6883. [2022-11-20 20:32:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6883 states, 4486 states have (on average 1.26326348640214) internal successors, (5667), 4651 states have internal predecessors, (5667), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2022-11-20 20:32:06,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6883 states to 6883 states and 9723 transitions. [2022-11-20 20:32:06,288 INFO L78 Accepts]: Start accepts. Automaton has 6883 states and 9723 transitions. Word has length 181 [2022-11-20 20:32:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:06,288 INFO L495 AbstractCegarLoop]: Abstraction has 6883 states and 9723 transitions. [2022-11-20 20:32:06,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 20:32:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6883 states and 9723 transitions. [2022-11-20 20:32:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-20 20:32:06,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:06,291 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:06,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (36)] Ended with exit code 0 [2022-11-20 20:32:06,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:06,507 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:06,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:06,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1731559086, now seen corresponding path program 1 times [2022-11-20 20:32:06,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:06,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944282202] [2022-11-20 20:32:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:06,509 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 20:32:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:06,509 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:06,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (37)] Waiting until timeout for monitored process [2022-11-20 20:32:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:07,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:32:07,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:32:08,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:08,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:08,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944282202] [2022-11-20 20:32:08,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944282202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:08,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:08,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:32:08,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215033876] [2022-11-20 20:32:08,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:08,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:32:08,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:08,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:32:08,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:32:08,251 INFO L87 Difference]: Start difference. First operand 6883 states and 9723 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 20:32:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:09,487 INFO L93 Difference]: Finished difference Result 6883 states and 9723 transitions. [2022-11-20 20:32:09,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:32:09,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 164 [2022-11-20 20:32:09,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:09,507 INFO L225 Difference]: With dead ends: 6883 [2022-11-20 20:32:09,507 INFO L226 Difference]: Without dead ends: 6881 [2022-11-20 20:32:09,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:32:09,511 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 3214 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3216 SdHoareTripleChecker+Valid, 6720 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:09,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3216 Valid, 6720 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:32:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6881 states. [2022-11-20 20:32:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6881 to 6881. [2022-11-20 20:32:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 4485 states have (on average 1.2630992196209587) internal successors, (5665), 4649 states have internal predecessors, (5665), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2022-11-20 20:32:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 9721 transitions. [2022-11-20 20:32:10,786 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 9721 transitions. Word has length 164 [2022-11-20 20:32:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:10,786 INFO L495 AbstractCegarLoop]: Abstraction has 6881 states and 9721 transitions. [2022-11-20 20:32:10,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 20:32:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 9721 transitions. [2022-11-20 20:32:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-20 20:32:10,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:10,788 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:10,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (37)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:10,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:10,989 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:10,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2098747083, now seen corresponding path program 1 times [2022-11-20 20:32:10,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:10,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841929995] [2022-11-20 20:32:10,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:10,991 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 20:32:10,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:10,992 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:10,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (38)] Waiting until timeout for monitored process [2022-11-20 20:32:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:12,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:32:12,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:32:12,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:12,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:12,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841929995] [2022-11-20 20:32:12,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841929995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:12,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:12,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:32:12,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755475023] [2022-11-20 20:32:12,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:12,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:32:12,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:12,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:32:12,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:32:12,852 INFO L87 Difference]: Start difference. First operand 6881 states and 9721 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 20:32:14,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:14,121 INFO L93 Difference]: Finished difference Result 6881 states and 9721 transitions. [2022-11-20 20:32:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:32:14,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 170 [2022-11-20 20:32:14,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:14,140 INFO L225 Difference]: With dead ends: 6881 [2022-11-20 20:32:14,140 INFO L226 Difference]: Without dead ends: 6879 [2022-11-20 20:32:14,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:32:14,144 INFO L413 NwaCegarLoop]: 3359 mSDtfsCounter, 3206 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 6716 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:14,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3208 Valid, 6716 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:32:14,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6879 states. [2022-11-20 20:32:15,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6879 to 6879. [2022-11-20 20:32:15,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6879 states, 4484 states have (on average 1.262934879571811) internal successors, (5663), 4647 states have internal predecessors, (5663), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2022-11-20 20:32:15,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6879 states to 6879 states and 9719 transitions. [2022-11-20 20:32:15,450 INFO L78 Accepts]: Start accepts. Automaton has 6879 states and 9719 transitions. Word has length 170 [2022-11-20 20:32:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:15,450 INFO L495 AbstractCegarLoop]: Abstraction has 6879 states and 9719 transitions. [2022-11-20 20:32:15,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 20:32:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6879 states and 9719 transitions. [2022-11-20 20:32:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-20 20:32:15,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:15,452 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:15,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (38)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:15,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:15,653 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:15,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:15,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1191753843, now seen corresponding path program 1 times [2022-11-20 20:32:15,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:15,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781497917] [2022-11-20 20:32:15,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:15,654 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 20:32:15,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:15,655 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:15,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (39)] Waiting until timeout for monitored process [2022-11-20 20:32:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:16,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:32:16,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:32:17,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:17,428 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:17,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781497917] [2022-11-20 20:32:17,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781497917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:17,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:17,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:32:17,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989283479] [2022-11-20 20:32:17,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:17,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:32:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:17,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:32:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:32:17,430 INFO L87 Difference]: Start difference. First operand 6879 states and 9719 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 20:32:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:18,766 INFO L93 Difference]: Finished difference Result 6879 states and 9719 transitions. [2022-11-20 20:32:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:32:18,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2022-11-20 20:32:18,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:18,785 INFO L225 Difference]: With dead ends: 6879 [2022-11-20 20:32:18,785 INFO L226 Difference]: Without dead ends: 6877 [2022-11-20 20:32:18,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:32:18,789 INFO L413 NwaCegarLoop]: 3357 mSDtfsCounter, 3198 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3200 SdHoareTripleChecker+Valid, 6712 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:18,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3200 Valid, 6712 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:32:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6877 states. [2022-11-20 20:32:20,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6877 to 6877. [2022-11-20 20:32:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 4483 states have (on average 1.2627704662056658) internal successors, (5661), 4645 states have internal predecessors, (5661), 1968 states have call successors, (1968), 419 states have call predecessors, (1968), 420 states have return successors, (2088), 1916 states have call predecessors, (2088), 1966 states have call successors, (2088) [2022-11-20 20:32:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 9717 transitions. [2022-11-20 20:32:20,224 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 9717 transitions. Word has length 176 [2022-11-20 20:32:20,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:20,225 INFO L495 AbstractCegarLoop]: Abstraction has 6877 states and 9717 transitions. [2022-11-20 20:32:20,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 20:32:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 9717 transitions. [2022-11-20 20:32:20,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-20 20:32:20,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:20,227 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:20,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (39)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:20,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:20,428 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:20,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:20,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1226890415, now seen corresponding path program 1 times [2022-11-20 20:32:20,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:20,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122795505] [2022-11-20 20:32:20,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:20,430 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 20:32:20,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:20,431 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:20,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (40)] Waiting until timeout for monitored process [2022-11-20 20:32:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:21,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:32:21,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:32:22,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:22,246 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:22,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122795505] [2022-11-20 20:32:22,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122795505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:22,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:22,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:32:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757297591] [2022-11-20 20:32:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:22,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:32:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:22,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:32:22,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:32:22,249 INFO L87 Difference]: Start difference. First operand 6877 states and 9717 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 20:32:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:23,629 INFO L93 Difference]: Finished difference Result 6877 states and 9717 transitions. [2022-11-20 20:32:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:32:23,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 182 [2022-11-20 20:32:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:23,645 INFO L225 Difference]: With dead ends: 6877 [2022-11-20 20:32:23,645 INFO L226 Difference]: Without dead ends: 6698 [2022-11-20 20:32:23,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:32:23,648 INFO L413 NwaCegarLoop]: 3356 mSDtfsCounter, 3189 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3189 SdHoareTripleChecker+Valid, 6712 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:23,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3189 Valid, 6712 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:32:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6698 states. [2022-11-20 20:32:24,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6698 to 6698. [2022-11-20 20:32:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6698 states, 4372 states have (on average 1.2680695333943275) internal successors, (5544), 4531 states have internal predecessors, (5544), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 400 states have return successors, (2041), 1871 states have call predecessors, (2041), 1919 states have call successors, (2041) [2022-11-20 20:32:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6698 states to 6698 states and 9506 transitions. [2022-11-20 20:32:25,018 INFO L78 Accepts]: Start accepts. Automaton has 6698 states and 9506 transitions. Word has length 182 [2022-11-20 20:32:25,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:25,018 INFO L495 AbstractCegarLoop]: Abstraction has 6698 states and 9506 transitions. [2022-11-20 20:32:25,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 20:32:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 6698 states and 9506 transitions. [2022-11-20 20:32:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-20 20:32:25,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:25,022 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:32:25,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (40)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:25,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:25,235 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:25,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:25,235 INFO L85 PathProgramCache]: Analyzing trace with hash 318340575, now seen corresponding path program 1 times [2022-11-20 20:32:25,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:25,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089360306] [2022-11-20 20:32:25,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:25,237 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 20:32:25,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:25,239 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:25,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (41)] Waiting until timeout for monitored process [2022-11-20 20:32:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:26,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 1942 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:32:26,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-20 20:32:26,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:26,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:26,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089360306] [2022-11-20 20:32:26,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089360306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:26,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:26,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:32:26,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24454544] [2022-11-20 20:32:26,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:26,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:32:26,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:26,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:32:26,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:32:26,918 INFO L87 Difference]: Start difference. First operand 6698 states and 9506 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 20:32:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:29,990 INFO L93 Difference]: Finished difference Result 14201 states and 20249 transitions. [2022-11-20 20:32:29,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:32:29,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 220 [2022-11-20 20:32:29,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:30,012 INFO L225 Difference]: With dead ends: 14201 [2022-11-20 20:32:30,012 INFO L226 Difference]: Without dead ends: 8038 [2022-11-20 20:32:30,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 20:32:30,028 INFO L413 NwaCegarLoop]: 3385 mSDtfsCounter, 1470 mSDsluCounter, 20521 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 23906 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:30,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 23906 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 20:32:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2022-11-20 20:32:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 6704. [2022-11-20 20:32:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6704 states, 4378 states have (on average 1.267702147099132) internal successors, (5550), 4537 states have internal predecessors, (5550), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 400 states have return successors, (2041), 1871 states have call predecessors, (2041), 1919 states have call successors, (2041) [2022-11-20 20:32:31,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6704 states to 6704 states and 9512 transitions. [2022-11-20 20:32:31,474 INFO L78 Accepts]: Start accepts. Automaton has 6704 states and 9512 transitions. Word has length 220 [2022-11-20 20:32:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:31,474 INFO L495 AbstractCegarLoop]: Abstraction has 6704 states and 9512 transitions. [2022-11-20 20:32:31,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 20:32:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 6704 states and 9512 transitions. [2022-11-20 20:32:31,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-20 20:32:31,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:31,477 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:31,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (41)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:31,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:31,677 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash 982865341, now seen corresponding path program 1 times [2022-11-20 20:32:31,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:31,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122821781] [2022-11-20 20:32:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:31,681 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 20:32:31,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:31,682 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:31,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (42)] Waiting until timeout for monitored process [2022-11-20 20:32:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:33,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 20:32:33,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:33,955 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-20 20:32:33,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:33,955 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:33,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122821781] [2022-11-20 20:32:33,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122821781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:33,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:33,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 20:32:33,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466928632] [2022-11-20 20:32:33,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:33,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:32:33,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:33,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:32:33,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:32:33,957 INFO L87 Difference]: Start difference. First operand 6704 states and 9512 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 20:32:36,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:36,731 INFO L93 Difference]: Finished difference Result 13535 states and 19434 transitions. [2022-11-20 20:32:36,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:32:36,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2022-11-20 20:32:36,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:36,748 INFO L225 Difference]: With dead ends: 13535 [2022-11-20 20:32:36,748 INFO L226 Difference]: Without dead ends: 6850 [2022-11-20 20:32:36,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:32:36,762 INFO L413 NwaCegarLoop]: 3213 mSDtfsCounter, 23 mSDsluCounter, 16041 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:36,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 19254 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 20:32:36,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6850 states. [2022-11-20 20:32:38,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6850 to 6740. [2022-11-20 20:32:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6740 states, 4406 states have (on average 1.2660009078529277) internal successors, (5578), 4561 states have internal predecessors, (5578), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 408 states have return successors, (2071), 1883 states have call predecessors, (2071), 1919 states have call successors, (2071) [2022-11-20 20:32:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6740 states to 6740 states and 9570 transitions. [2022-11-20 20:32:38,164 INFO L78 Accepts]: Start accepts. Automaton has 6740 states and 9570 transitions. Word has length 222 [2022-11-20 20:32:38,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:38,164 INFO L495 AbstractCegarLoop]: Abstraction has 6740 states and 9570 transitions. [2022-11-20 20:32:38,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 20:32:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 6740 states and 9570 transitions. [2022-11-20 20:32:38,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-20 20:32:38,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:38,166 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:38,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (42)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:38,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:38,367 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:38,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:38,367 INFO L85 PathProgramCache]: Analyzing trace with hash -304017294, now seen corresponding path program 1 times [2022-11-20 20:32:38,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733501372] [2022-11-20 20:32:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:38,369 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 20:32:38,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:38,370 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:38,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (43)] Waiting until timeout for monitored process [2022-11-20 20:32:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:40,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 2142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 20:32:40,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-20 20:32:40,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:40,560 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:40,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733501372] [2022-11-20 20:32:40,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733501372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:40,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:32:40,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 20:32:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468487128] [2022-11-20 20:32:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:40,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:32:40,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:40,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:32:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:32:40,562 INFO L87 Difference]: Start difference. First operand 6740 states and 9570 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 20:32:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:43,865 INFO L93 Difference]: Finished difference Result 13587 states and 19508 transitions. [2022-11-20 20:32:43,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:32:43,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2022-11-20 20:32:43,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:43,885 INFO L225 Difference]: With dead ends: 13587 [2022-11-20 20:32:43,885 INFO L226 Difference]: Without dead ends: 6866 [2022-11-20 20:32:43,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:32:43,901 INFO L413 NwaCegarLoop]: 3213 mSDtfsCounter, 23 mSDsluCounter, 16041 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19254 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:43,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 19254 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 20:32:43,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6866 states. [2022-11-20 20:32:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6866 to 6756. [2022-11-20 20:32:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 4422 states have (on average 1.2650384441429217) internal successors, (5594), 4569 states have internal predecessors, (5594), 1921 states have call successors, (1921), 399 states have call predecessors, (1921), 408 states have return successors, (2071), 1891 states have call predecessors, (2071), 1919 states have call successors, (2071) [2022-11-20 20:32:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 9586 transitions. [2022-11-20 20:32:45,329 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 9586 transitions. Word has length 222 [2022-11-20 20:32:45,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:45,329 INFO L495 AbstractCegarLoop]: Abstraction has 6756 states and 9586 transitions. [2022-11-20 20:32:45,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 20:32:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 9586 transitions. [2022-11-20 20:32:45,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-20 20:32:45,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:45,331 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:32:45,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (43)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:45,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:45,532 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:45,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:45,532 INFO L85 PathProgramCache]: Analyzing trace with hash 2080925888, now seen corresponding path program 1 times [2022-11-20 20:32:45,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:45,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469183995] [2022-11-20 20:32:45,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:45,534 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 20:32:45,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:45,535 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:45,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (44)] Waiting until timeout for monitored process [2022-11-20 20:32:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:47,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 20:32:47,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-20 20:32:47,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:32:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 51 proven. 15 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2022-11-20 20:32:48,077 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:32:48,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469183995] [2022-11-20 20:32:48,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469183995] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:32:48,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2066361089] [2022-11-20 20:32:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:48,078 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:32:48,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:32:48,084 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:32:48,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2022-11-20 20:32:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:32:53,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 20:32:53,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:32:53,443 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-11-20 20:32:53,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:32:53,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2066361089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:32:53,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:32:53,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 18] total 21 [2022-11-20 20:32:53,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450743399] [2022-11-20 20:32:53,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:32:53,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 20:32:53,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:32:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 20:32:53,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2022-11-20 20:32:53,446 INFO L87 Difference]: Start difference. First operand 6756 states and 9586 transitions. Second operand has 15 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-20 20:32:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:32:56,493 INFO L93 Difference]: Finished difference Result 12973 states and 18359 transitions. [2022-11-20 20:32:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 20:32:56,494 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 229 [2022-11-20 20:32:56,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:32:56,514 INFO L225 Difference]: With dead ends: 12973 [2022-11-20 20:32:56,514 INFO L226 Difference]: Without dead ends: 6759 [2022-11-20 20:32:56,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 665 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2022-11-20 20:32:56,529 INFO L413 NwaCegarLoop]: 3163 mSDtfsCounter, 67 mSDsluCounter, 41000 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 44163 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:32:56,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 44163 Invalid, 699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 20:32:56,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6759 states. [2022-11-20 20:32:57,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6759 to 6742. [2022-11-20 20:32:57,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6742 states, 4411 states have (on average 1.2652459759691679) internal successors, (5581), 4558 states have internal predecessors, (5581), 1919 states have call successors, (1919), 398 states have call predecessors, (1919), 407 states have return successors, (2069), 1889 states have call predecessors, (2069), 1917 states have call successors, (2069) [2022-11-20 20:32:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6742 states to 6742 states and 9569 transitions. [2022-11-20 20:32:57,931 INFO L78 Accepts]: Start accepts. Automaton has 6742 states and 9569 transitions. Word has length 229 [2022-11-20 20:32:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:32:57,931 INFO L495 AbstractCegarLoop]: Abstraction has 6742 states and 9569 transitions. [2022-11-20 20:32:57,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-20 20:32:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6742 states and 9569 transitions. [2022-11-20 20:32:57,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-20 20:32:57,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:32:57,934 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:57,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:58,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (44)] Forceful destruction successful, exit code 0 [2022-11-20 20:32:58,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:58,335 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:32:58,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:32:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1383788251, now seen corresponding path program 1 times [2022-11-20 20:32:58,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:32:58,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213815994] [2022-11-20 20:32:58,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:32:58,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:32:58,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:32:58,339 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:32:58,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (46)] Waiting until timeout for monitored process [2022-11-20 20:33:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:00,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 20:33:00,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:00,863 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-20 20:33:00,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:33:00,863 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:00,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213815994] [2022-11-20 20:33:00,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213815994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:00,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:00,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 20:33:00,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310846110] [2022-11-20 20:33:00,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:00,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 20:33:00,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:33:00,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 20:33:00,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:33:00,866 INFO L87 Difference]: Start difference. First operand 6742 states and 9569 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 20:33:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:02,594 INFO L93 Difference]: Finished difference Result 13631 states and 19598 transitions. [2022-11-20 20:33:02,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:33:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 238 [2022-11-20 20:33:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:02,614 INFO L225 Difference]: With dead ends: 13631 [2022-11-20 20:33:02,614 INFO L226 Difference]: Without dead ends: 6908 [2022-11-20 20:33:02,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 20:33:02,632 INFO L413 NwaCegarLoop]: 3229 mSDtfsCounter, 28 mSDsluCounter, 22561 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 25790 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:02,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 25790 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:33:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6908 states. [2022-11-20 20:33:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6908 to 6782. [2022-11-20 20:33:04,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6782 states, 4447 states have (on average 1.2630987182370137) internal successors, (5617), 4586 states have internal predecessors, (5617), 1919 states have call successors, (1919), 398 states have call predecessors, (1919), 411 states have return successors, (2087), 1901 states have call predecessors, (2087), 1917 states have call successors, (2087) [2022-11-20 20:33:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6782 states to 6782 states and 9623 transitions. [2022-11-20 20:33:04,191 INFO L78 Accepts]: Start accepts. Automaton has 6782 states and 9623 transitions. Word has length 238 [2022-11-20 20:33:04,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:04,192 INFO L495 AbstractCegarLoop]: Abstraction has 6782 states and 9623 transitions. [2022-11-20 20:33:04,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 20:33:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6782 states and 9623 transitions. [2022-11-20 20:33:04,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-20 20:33:04,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:04,195 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:04,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (46)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:04,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:04,396 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:33:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:04,396 INFO L85 PathProgramCache]: Analyzing trace with hash 478531719, now seen corresponding path program 1 times [2022-11-20 20:33:04,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:33:04,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249646652] [2022-11-20 20:33:04,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:04,398 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 20:33:04,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:33:04,399 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:04,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (47)] Waiting until timeout for monitored process [2022-11-20 20:33:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:06,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 20:33:06,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-20 20:33:06,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:33:06,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:06,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249646652] [2022-11-20 20:33:06,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249646652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:06,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:06,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 20:33:06,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436340897] [2022-11-20 20:33:06,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:06,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 20:33:06,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:33:06,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 20:33:06,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-11-20 20:33:06,712 INFO L87 Difference]: Start difference. First operand 6782 states and 9623 transitions. Second operand has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 14 states have internal predecessors, (104), 7 states have call successors, (38), 2 states have call predecessors, (38), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2022-11-20 20:33:11,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:11,844 INFO L93 Difference]: Finished difference Result 14108 states and 20076 transitions. [2022-11-20 20:33:11,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 20:33:11,844 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 14 states have internal predecessors, (104), 7 states have call successors, (38), 2 states have call predecessors, (38), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) Word has length 234 [2022-11-20 20:33:11,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:11,868 INFO L225 Difference]: With dead ends: 14108 [2022-11-20 20:33:11,868 INFO L226 Difference]: Without dead ends: 7908 [2022-11-20 20:33:11,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2022-11-20 20:33:11,885 INFO L413 NwaCegarLoop]: 3969 mSDtfsCounter, 1924 mSDsluCounter, 56764 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 60733 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:11,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1925 Valid, 60733 Invalid, 1796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [695 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 20:33:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-11-20 20:33:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 6812. [2022-11-20 20:33:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6812 states, 4464 states have (on average 1.2620967741935485) internal successors, (5634), 4600 states have internal predecessors, (5634), 1930 states have call successors, (1930), 398 states have call predecessors, (1930), 413 states have return successors, (2102), 1914 states have call predecessors, (2102), 1928 states have call successors, (2102) [2022-11-20 20:33:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6812 states to 6812 states and 9666 transitions. [2022-11-20 20:33:13,444 INFO L78 Accepts]: Start accepts. Automaton has 6812 states and 9666 transitions. Word has length 234 [2022-11-20 20:33:13,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:13,445 INFO L495 AbstractCegarLoop]: Abstraction has 6812 states and 9666 transitions. [2022-11-20 20:33:13,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.933333333333334) internal successors, (104), 14 states have internal predecessors, (104), 7 states have call successors, (38), 2 states have call predecessors, (38), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2022-11-20 20:33:13,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6812 states and 9666 transitions. [2022-11-20 20:33:13,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-20 20:33:13,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:13,449 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:13,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (47)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:13,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:13,671 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:33:13,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:13,671 INFO L85 PathProgramCache]: Analyzing trace with hash -332948204, now seen corresponding path program 1 times [2022-11-20 20:33:13,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:33:13,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222541078] [2022-11-20 20:33:13,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:13,673 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 20:33:13,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:33:13,674 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:13,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (48)] Waiting until timeout for monitored process [2022-11-20 20:33:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:15,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2176 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-20 20:33:15,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-20 20:33:16,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:33:16,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:16,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222541078] [2022-11-20 20:33:16,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222541078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:16,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:16,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 20:33:16,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076774523] [2022-11-20 20:33:16,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:16,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 20:33:16,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:33:16,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 20:33:16,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:33:16,075 INFO L87 Difference]: Start difference. First operand 6812 states and 9666 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 20:33:17,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:17,982 INFO L93 Difference]: Finished difference Result 13755 states and 19740 transitions. [2022-11-20 20:33:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:33:17,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 238 [2022-11-20 20:33:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:17,999 INFO L225 Difference]: With dead ends: 13755 [2022-11-20 20:33:17,999 INFO L226 Difference]: Without dead ends: 6962 [2022-11-20 20:33:18,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 20:33:18,013 INFO L413 NwaCegarLoop]: 3230 mSDtfsCounter, 28 mSDsluCounter, 22568 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 25798 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:18,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 25798 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:33:18,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6962 states. [2022-11-20 20:33:19,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6962 to 6836. [2022-11-20 20:33:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 4488 states have (on average 1.2606951871657754) internal successors, (5658), 4616 states have internal predecessors, (5658), 1930 states have call successors, (1930), 398 states have call predecessors, (1930), 413 states have return successors, (2102), 1922 states have call predecessors, (2102), 1928 states have call successors, (2102) [2022-11-20 20:33:19,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 9690 transitions. [2022-11-20 20:33:19,569 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 9690 transitions. Word has length 238 [2022-11-20 20:33:19,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:19,570 INFO L495 AbstractCegarLoop]: Abstraction has 6836 states and 9690 transitions. [2022-11-20 20:33:19,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 20:33:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 9690 transitions. [2022-11-20 20:33:19,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-20 20:33:19,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:19,573 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:19,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (48)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:19,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:19,773 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:33:19,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1252558851, now seen corresponding path program 2 times [2022-11-20 20:33:19,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:33:19,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994686077] [2022-11-20 20:33:19,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 20:33:19,776 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 20:33:19,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:33:19,777 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:19,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (49)] Waiting until timeout for monitored process [2022-11-20 20:33:22,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 20:33:22,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 20:33:22,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 2216 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 20:33:22,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-11-20 20:33:22,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:33:22,843 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:22,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994686077] [2022-11-20 20:33:22,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994686077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:22,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:22,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 20:33:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439517565] [2022-11-20 20:33:22,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:22,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 20:33:22,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:33:22,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 20:33:22,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 20:33:22,845 INFO L87 Difference]: Start difference. First operand 6836 states and 9690 transitions. Second operand has 12 states, 10 states have (on average 11.6) internal successors, (116), 9 states have internal predecessors, (116), 4 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2022-11-20 20:33:25,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:25,656 INFO L93 Difference]: Finished difference Result 13465 states and 19283 transitions. [2022-11-20 20:33:25,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 20:33:25,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.6) internal successors, (116), 9 states have internal predecessors, (116), 4 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) Word has length 254 [2022-11-20 20:33:25,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:25,675 INFO L225 Difference]: With dead ends: 13465 [2022-11-20 20:33:25,675 INFO L226 Difference]: Without dead ends: 6648 [2022-11-20 20:33:25,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-20 20:33:25,691 INFO L413 NwaCegarLoop]: 3173 mSDtfsCounter, 10 mSDsluCounter, 28452 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 31625 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:25,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 31625 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 20:33:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2022-11-20 20:33:27,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 6636. [2022-11-20 20:33:27,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6636 states, 4340 states have (on average 1.2608294930875577) internal successors, (5472), 4480 states have internal predecessors, (5472), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 409 states have return successors, (2037), 1860 states have call predecessors, (2037), 1880 states have call successors, (2037) [2022-11-20 20:33:27,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6636 states to 6636 states and 9391 transitions. [2022-11-20 20:33:27,235 INFO L78 Accepts]: Start accepts. Automaton has 6636 states and 9391 transitions. Word has length 254 [2022-11-20 20:33:27,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:27,235 INFO L495 AbstractCegarLoop]: Abstraction has 6636 states and 9391 transitions. [2022-11-20 20:33:27,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.6) internal successors, (116), 9 states have internal predecessors, (116), 4 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (34), 6 states have call predecessors, (34), 4 states have call successors, (34) [2022-11-20 20:33:27,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6636 states and 9391 transitions. [2022-11-20 20:33:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-11-20 20:33:27,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:27,239 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:27,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (49)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:27,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:27,439 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:33:27,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:27,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1268183131, now seen corresponding path program 1 times [2022-11-20 20:33:27,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:33:27,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606824951] [2022-11-20 20:33:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:27,442 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 20:33:27,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:33:27,447 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:27,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (50)] Waiting until timeout for monitored process [2022-11-20 20:33:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:29,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 2143 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 20:33:29,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-20 20:33:29,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:33:29,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:29,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606824951] [2022-11-20 20:33:29,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606824951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:29,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:29,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 20:33:29,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869918759] [2022-11-20 20:33:29,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:29,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 20:33:29,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:33:29,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 20:33:29,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:33:29,439 INFO L87 Difference]: Start difference. First operand 6636 states and 9391 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (36), 4 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 20:33:31,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:33:32,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:32,723 INFO L93 Difference]: Finished difference Result 13309 states and 19037 transitions. [2022-11-20 20:33:32,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 20:33:32,724 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (36), 4 states have call predecessors, (36), 2 states have call successors, (36) Word has length 256 [2022-11-20 20:33:32,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:32,752 INFO L225 Difference]: With dead ends: 13309 [2022-11-20 20:33:32,753 INFO L226 Difference]: Without dead ends: 6692 [2022-11-20 20:33:32,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:33:32,778 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 10 mSDsluCounter, 25562 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 28759 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:32,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 28759 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 20:33:32,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6692 states. [2022-11-20 20:33:34,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6692 to 6676. [2022-11-20 20:33:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6676 states, 4372 states have (on average 1.2589204025617566) internal successors, (5504), 4512 states have internal predecessors, (5504), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 417 states have return successors, (2047), 1868 states have call predecessors, (2047), 1880 states have call successors, (2047) [2022-11-20 20:33:34,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 9433 transitions. [2022-11-20 20:33:34,307 INFO L78 Accepts]: Start accepts. Automaton has 6676 states and 9433 transitions. Word has length 256 [2022-11-20 20:33:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:34,307 INFO L495 AbstractCegarLoop]: Abstraction has 6676 states and 9433 transitions. [2022-11-20 20:33:34,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (36), 4 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 20:33:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6676 states and 9433 transitions. [2022-11-20 20:33:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-20 20:33:34,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:34,311 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:34,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (50)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:34,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:34,535 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:33:34,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:34,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2048719054, now seen corresponding path program 1 times [2022-11-20 20:33:34,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:33:34,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898806529] [2022-11-20 20:33:34,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:34,537 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 20:33:34,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:33:34,538 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:34,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (51)] Waiting until timeout for monitored process [2022-11-20 20:33:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:36,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 2083 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-20 20:33:36,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-11-20 20:33:36,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:33:36,980 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:36,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898806529] [2022-11-20 20:33:36,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898806529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:36,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:36,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 20:33:36,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387996505] [2022-11-20 20:33:36,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:36,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 20:33:36,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:33:36,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 20:33:36,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:33:36,983 INFO L87 Difference]: Start difference. First operand 6676 states and 9433 transitions. Second operand has 13 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 5 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-11-20 20:33:39,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:39,919 INFO L93 Difference]: Finished difference Result 13182 states and 18606 transitions. [2022-11-20 20:33:39,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 20:33:39,920 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 5 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 275 [2022-11-20 20:33:39,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:39,939 INFO L225 Difference]: With dead ends: 13182 [2022-11-20 20:33:39,939 INFO L226 Difference]: Without dead ends: 6701 [2022-11-20 20:33:39,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-20 20:33:39,953 INFO L413 NwaCegarLoop]: 3175 mSDtfsCounter, 467 mSDsluCounter, 21523 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 24698 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:39,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 24698 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 20:33:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2022-11-20 20:33:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6676. [2022-11-20 20:33:41,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6676 states, 4372 states have (on average 1.258462946020128) internal successors, (5502), 4510 states have internal predecessors, (5502), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 417 states have return successors, (2047), 1868 states have call predecessors, (2047), 1880 states have call successors, (2047) [2022-11-20 20:33:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 9431 transitions. [2022-11-20 20:33:41,594 INFO L78 Accepts]: Start accepts. Automaton has 6676 states and 9431 transitions. Word has length 275 [2022-11-20 20:33:41,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:41,594 INFO L495 AbstractCegarLoop]: Abstraction has 6676 states and 9431 transitions. [2022-11-20 20:33:41,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 5 states have call successors, (41), 2 states have call predecessors, (41), 5 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2022-11-20 20:33:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6676 states and 9431 transitions. [2022-11-20 20:33:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-20 20:33:41,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:41,598 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:41,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (51)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:41,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:41,811 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:33:41,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:41,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1539698688, now seen corresponding path program 1 times [2022-11-20 20:33:41,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:33:41,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173889763] [2022-11-20 20:33:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:41,813 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 20:33:41,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:33:41,814 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:41,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (52)] Waiting until timeout for monitored process [2022-11-20 20:33:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:43,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 2073 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-20 20:33:43,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-20 20:33:44,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:33:44,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:44,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173889763] [2022-11-20 20:33:44,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173889763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:33:44,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:33:44,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 20:33:44,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243176391] [2022-11-20 20:33:44,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:33:44,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 20:33:44,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:33:44,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 20:33:44,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-20 20:33:44,359 INFO L87 Difference]: Start difference. First operand 6676 states and 9431 transitions. Second operand has 14 states, 12 states have (on average 10.583333333333334) internal successors, (127), 10 states have internal predecessors, (127), 4 states have call successors, (40), 2 states have call predecessors, (40), 6 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) [2022-11-20 20:33:47,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:33:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:33:50,369 INFO L93 Difference]: Finished difference Result 13875 states and 19830 transitions. [2022-11-20 20:33:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 20:33:50,369 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.583333333333334) internal successors, (127), 10 states have internal predecessors, (127), 4 states have call successors, (40), 2 states have call predecessors, (40), 6 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) Word has length 258 [2022-11-20 20:33:50,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:33:50,391 INFO L225 Difference]: With dead ends: 13875 [2022-11-20 20:33:50,392 INFO L226 Difference]: Without dead ends: 7218 [2022-11-20 20:33:50,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-11-20 20:33:50,412 INFO L413 NwaCegarLoop]: 3289 mSDtfsCounter, 228 mSDsluCounter, 38998 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 42287 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:33:50,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 42287 Invalid, 866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 20:33:50,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7218 states. [2022-11-20 20:33:51,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7218 to 6676. [2022-11-20 20:33:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6676 states, 4372 states have (on average 1.258462946020128) internal successors, (5502), 4510 states have internal predecessors, (5502), 1882 states have call successors, (1882), 396 states have call predecessors, (1882), 417 states have return successors, (2047), 1868 states have call predecessors, (2047), 1880 states have call successors, (2047) [2022-11-20 20:33:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 9431 transitions. [2022-11-20 20:33:51,966 INFO L78 Accepts]: Start accepts. Automaton has 6676 states and 9431 transitions. Word has length 258 [2022-11-20 20:33:51,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:33:51,967 INFO L495 AbstractCegarLoop]: Abstraction has 6676 states and 9431 transitions. [2022-11-20 20:33:51,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.583333333333334) internal successors, (127), 10 states have internal predecessors, (127), 4 states have call successors, (40), 2 states have call predecessors, (40), 6 states have return successors, (37), 6 states have call predecessors, (37), 4 states have call successors, (37) [2022-11-20 20:33:51,967 INFO L276 IsEmpty]: Start isEmpty. Operand 6676 states and 9431 transitions. [2022-11-20 20:33:51,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-20 20:33:51,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:33:51,971 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:33:52,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (52)] Forceful destruction successful, exit code 0 [2022-11-20 20:33:52,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:52,196 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:33:52,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:33:52,196 INFO L85 PathProgramCache]: Analyzing trace with hash 117623665, now seen corresponding path program 1 times [2022-11-20 20:33:52,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:33:52,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152916757] [2022-11-20 20:33:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:52,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 20:33:52,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:33:52,199 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:33:52,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (53)] Waiting until timeout for monitored process [2022-11-20 20:33:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:54,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 2211 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:33:54,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-20 20:33:54,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:33:54,772 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-20 20:33:54,772 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:33:54,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152916757] [2022-11-20 20:33:54,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152916757] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:33:54,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1614095728] [2022-11-20 20:33:54,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:54,773 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:33:54,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:33:54,775 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:33:54,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2022-11-20 20:33:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:56,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 2211 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:33:56,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:56,911 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-20 20:33:56,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:33:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-20 20:33:57,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1614095728] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:33:57,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059411229] [2022-11-20 20:33:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:33:57,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:33:57,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:33:57,144 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:33:57,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2022-11-20 20:33:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:33:58,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 2211 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 20:33:58,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:33:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 9 proven. 146 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-20 20:33:59,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:34:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-20 20:34:00,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059411229] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:34:00,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 20:34:00,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 8, 8] total 16 [2022-11-20 20:34:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298940378] [2022-11-20 20:34:00,396 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 20:34:00,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 20:34:00,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:34:00,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 20:34:00,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-11-20 20:34:00,398 INFO L87 Difference]: Start difference. First operand 6676 states and 9431 transitions. Second operand has 16 states, 16 states have (on average 16.75) internal successors, (268), 16 states have internal predecessors, (268), 9 states have call successors, (88), 8 states have call predecessors, (88), 6 states have return successors, (82), 9 states have call predecessors, (82), 9 states have call successors, (82) [2022-11-20 20:34:08,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:10,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:12,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:13,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:15,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:16,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:43,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:45,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:34:59,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:00,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:01,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:02,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:04,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:05,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:20,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:22,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:38,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:35:39,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:36:33,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 20:37:47,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:37:47,467 INFO L93 Difference]: Finished difference Result 28990 states and 42903 transitions. [2022-11-20 20:37:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-20 20:37:47,468 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.75) internal successors, (268), 16 states have internal predecessors, (268), 9 states have call successors, (88), 8 states have call predecessors, (88), 6 states have return successors, (82), 9 states have call predecessors, (82), 9 states have call successors, (82) Word has length 254 [2022-11-20 20:37:47,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:37:47,557 INFO L225 Difference]: With dead ends: 28990 [2022-11-20 20:37:47,557 INFO L226 Difference]: Without dead ends: 25463 [2022-11-20 20:37:47,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1560 GetRequests, 1513 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=401, Invalid=1951, Unknown=0, NotChecked=0, Total=2352 [2022-11-20 20:37:47,581 INFO L413 NwaCegarLoop]: 3965 mSDtfsCounter, 22105 mSDsluCounter, 30870 mSDsCounter, 0 mSdLazyCounter, 61420 mSolverCounterSat, 15878 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 197.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23220 SdHoareTripleChecker+Valid, 34835 SdHoareTripleChecker+Invalid, 77301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 15878 IncrementalHoareTripleChecker+Valid, 61420 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 214.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:37:47,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23220 Valid, 34835 Invalid, 77301 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [15878 Valid, 61420 Invalid, 3 Unknown, 0 Unchecked, 214.7s Time] [2022-11-20 20:37:47,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25463 states. [2022-11-20 20:37:54,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25463 to 25193. [2022-11-20 20:37:54,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25193 states, 16580 states have (on average 1.2552472858866104) internal successors, (20812), 17096 states have internal predecessors, (20812), 6961 states have call successors, (6961), 1404 states have call predecessors, (6961), 1647 states have return successors, (9357), 7077 states have call predecessors, (9357), 6959 states have call successors, (9357) [2022-11-20 20:37:54,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25193 states to 25193 states and 37130 transitions. [2022-11-20 20:37:54,514 INFO L78 Accepts]: Start accepts. Automaton has 25193 states and 37130 transitions. Word has length 254 [2022-11-20 20:37:54,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:37:54,514 INFO L495 AbstractCegarLoop]: Abstraction has 25193 states and 37130 transitions. [2022-11-20 20:37:54,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.75) internal successors, (268), 16 states have internal predecessors, (268), 9 states have call successors, (88), 8 states have call predecessors, (88), 6 states have return successors, (82), 9 states have call predecessors, (82), 9 states have call successors, (82) [2022-11-20 20:37:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 25193 states and 37130 transitions. [2022-11-20 20:37:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-20 20:37:54,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:37:54,517 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:54,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2022-11-20 20:37:54,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2022-11-20 20:37:54,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (53)] Forceful destruction successful, exit code 0 [2022-11-20 20:37:55,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:37:55,118 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-20 20:37:55,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:37:55,119 INFO L85 PathProgramCache]: Analyzing trace with hash -121263855, now seen corresponding path program 1 times [2022-11-20 20:37:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:37:55,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301866689] [2022-11-20 20:37:55,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:37:55,120 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 20:37:55,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:37:55,121 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 20:37:55,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9512e37b-d3ea-4785-b4a0-33f848b650a8/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 (56)] Waiting until timeout for monitored process [2022-11-20 20:37:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:37:56,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 2095 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 20:37:56,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:37:57,724 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-11-20 20:37:57,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:37:57,725 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:37:57,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301866689] [2022-11-20 20:37:57,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301866689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:37:57,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:37:57,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:37:57,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82028546] [2022-11-20 20:37:57,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:37:57,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:37:57,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:37:57,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:37:57,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:37:57,727 INFO L87 Difference]: Start difference. First operand 25193 states and 37130 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2022-11-20 20:38:07,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:38:07,108 INFO L93 Difference]: Finished difference Result 38418 states and 56159 transitions. [2022-11-20 20:38:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:38:07,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 279 [2022-11-20 20:38:07,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:38:07,243 INFO L225 Difference]: With dead ends: 38418 [2022-11-20 20:38:07,243 INFO L226 Difference]: Without dead ends: 38416 [2022-11-20 20:38:07,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:38:07,258 INFO L413 NwaCegarLoop]: 3710 mSDtfsCounter, 2103 mSDsluCounter, 9587 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 13297 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:38:07,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 13297 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:38:07,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38416 states.