./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--net--ethernet--icplus--ipg.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba --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 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 --- 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-b5237d8 [2022-11-22 01:38:48,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:38:48,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:38:48,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:38:48,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:38:48,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:38:48,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:38:48,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:38:48,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:38:48,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:38:48,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:38:48,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:38:48,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:38:48,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:38:48,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:38:48,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:38:48,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:38:48,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:38:48,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:38:48,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:38:48,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:38:48,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:38:48,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:38:48,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:38:48,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:38:48,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:38:48,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:38:48,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:38:48,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:38:48,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:38:48,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:38:48,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:38:48,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:38:48,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:38:48,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:38:48,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:38:48,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:38:48,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:38:48,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:38:48,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:38:48,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:38:48,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:38:48,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:38:48,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:38:48,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:38:48,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:38:48,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:38:48,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:38:48,676 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:38:48,677 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:38:48,677 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:38:48,677 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:38:48,677 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:38:48,677 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:38:48,678 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:38:48,678 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:38:48,678 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:38:48,678 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:38:48,679 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:38:48,684 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:38:48,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:38:48,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:38:48,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:38:48,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:38:48,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:38:48,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:38:48,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:38:48,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:38:48,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:38:48,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:38:48,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:38:48,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:38:48,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:38:48,690 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:38:48,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:38:48,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:38:48,690 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:38:48,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:38:48,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:38:48,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:38:48,692 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 [2022-11-22 01:38:48,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:38:49,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:38:49,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:38:49,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:38:49,040 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:38:49,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-22 01:38:52,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:38:52,967 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:38:52,967 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-22 01:38:53,039 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data/a11367730/d2218f6e5d0348f58b39b4c912de6599/FLAG68aedf98e [2022-11-22 01:38:53,059 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data/a11367730/d2218f6e5d0348f58b39b4c912de6599 [2022-11-22 01:38:53,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:38:53,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:38:53,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:38:53,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:38:53,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:38:53,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:38:53" (1/1) ... [2022-11-22 01:38:53,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182e516c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:38:53, skipping insertion in model container [2022-11-22 01:38:53,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:38:53" (1/1) ... [2022-11-22 01:38:53,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:38:53,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:38:55,420 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: Unknown Expression StructAccessExpression at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValueFromBinaryExpression(TypeSizes.java:656) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:632) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromIfThenElseExpression(TypeSizes.java:550) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:367) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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:1867) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:202) 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) [2022-11-22 01:38:55,432 INFO L158 Benchmark]: Toolchain (without parser) took 2362.94ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 94.7MB in the beginning and 108.1MB in the end (delta: -13.3MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2022-11-22 01:38:55,432 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 159.4MB. Free memory is still 101.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:38:55,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2359.62ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 94.7MB in the beginning and 108.1MB in the end (delta: -13.3MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2022-11-22 01:38:55,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 159.4MB. Free memory is still 101.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2359.62ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 94.7MB in the beginning and 108.1MB in the end (delta: -13.3MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: Unknown Expression StructAccessExpression de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: Unknown Expression StructAccessExpression: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:424) 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba --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 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 --- 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-b5237d8 [2022-11-22 01:38:57,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:38:57,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:38:57,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:38:57,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:38:57,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:38:57,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:38:57,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:38:57,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:38:57,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:38:57,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:38:57,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:38:57,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:38:57,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:38:57,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:38:57,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:38:57,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:38:57,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:38:57,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:38:57,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:38:57,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:38:57,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:38:57,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:38:57,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:38:57,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:38:57,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:38:57,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:38:57,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:38:57,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:38:57,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:38:57,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:38:57,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:38:57,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:38:57,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:38:57,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:38:57,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:38:57,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:38:57,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:38:57,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:38:57,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:38:57,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:38:57,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:38:57,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:38:57,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:38:57,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:38:57,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:38:57,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:38:57,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:38:57,960 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:38:57,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:38:57,961 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:38:57,961 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:38:57,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:38:57,962 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:38:57,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:38:57,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:38:57,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:38:57,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:38:57,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:38:57,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:38:57,964 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:38:57,964 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:38:57,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:38:57,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:38:57,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:38:57,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:38:57,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:38:57,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:38:57,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:38:57,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:38:57,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:38:57,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:38:57,967 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:38:57,967 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:38:57,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:38:57,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:38:57,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:38:57,968 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 [2022-11-22 01:38:58,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:38:58,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:38:58,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:38:58,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:38:58,425 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:38:58,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-22 01:39:01,736 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:39:02,446 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:39:02,447 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-22 01:39:02,506 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data/20dbcaf74/6820cc5f47ff4291a189ad6abffbbbf6/FLAG0514f6a9b [2022-11-22 01:39:02,526 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/data/20dbcaf74/6820cc5f47ff4291a189ad6abffbbbf6 [2022-11-22 01:39:02,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:39:02,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:39:02,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:39:02,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:39:02,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:39:02,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:39:02" (1/1) ... [2022-11-22 01:39:02,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14269e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:02, skipping insertion in model container [2022-11-22 01:39:02,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:39:02" (1/1) ... [2022-11-22 01:39:02,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:39:02,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:39:07,167 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2022-11-22 01:39:07,171 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2022-11-22 01:39:07,172 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2022-11-22 01:39:07,172 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2022-11-22 01:39:07,173 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2022-11-22 01:39:07,173 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2022-11-22 01:39:07,174 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2022-11-22 01:39:07,174 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2022-11-22 01:39:07,175 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2022-11-22 01:39:07,175 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2022-11-22 01:39:07,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2022-11-22 01:39:07,176 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2022-11-22 01:39:07,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2022-11-22 01:39:07,177 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2022-11-22 01:39:07,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2022-11-22 01:39:07,178 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2022-11-22 01:39:07,179 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2022-11-22 01:39:07,179 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2022-11-22 01:39:07,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2022-11-22 01:39:07,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2022-11-22 01:39:07,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2022-11-22 01:39:07,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2022-11-22 01:39:07,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2022-11-22 01:39:07,182 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2022-11-22 01:39:07,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2022-11-22 01:39:07,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2022-11-22 01:39:07,184 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2022-11-22 01:39:07,184 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2022-11-22 01:39:07,185 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2022-11-22 01:39:07,185 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2022-11-22 01:39:07,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2022-11-22 01:39:07,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2022-11-22 01:39:07,187 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2022-11-22 01:39:07,187 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2022-11-22 01:39:07,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2022-11-22 01:39:07,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2022-11-22 01:39:07,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2022-11-22 01:39:07,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2022-11-22 01:39:07,190 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2022-11-22 01:39:07,190 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2022-11-22 01:39:07,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2022-11-22 01:39:07,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2022-11-22 01:39:07,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2022-11-22 01:39:07,192 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2022-11-22 01:39:07,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2022-11-22 01:39:07,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2022-11-22 01:39:07,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2022-11-22 01:39:07,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2022-11-22 01:39:07,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2022-11-22 01:39:07,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2022-11-22 01:39:07,195 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2022-11-22 01:39:07,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2022-11-22 01:39:07,196 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2022-11-22 01:39:07,197 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2022-11-22 01:39:07,197 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2022-11-22 01:39:07,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2022-11-22 01:39:07,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2022-11-22 01:39:07,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2022-11-22 01:39:07,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2022-11-22 01:39:07,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2022-11-22 01:39:07,200 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2022-11-22 01:39:07,200 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2022-11-22 01:39:07,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2022-11-22 01:39:07,201 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2022-11-22 01:39:07,202 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2022-11-22 01:39:07,202 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2022-11-22 01:39:07,203 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2022-11-22 01:39:07,203 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2022-11-22 01:39:07,204 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2022-11-22 01:39:07,204 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2022-11-22 01:39:07,204 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2022-11-22 01:39:07,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2022-11-22 01:39:07,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2022-11-22 01:39:07,206 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2022-11-22 01:39:07,206 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2022-11-22 01:39:07,207 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2022-11-22 01:39:07,207 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2022-11-22 01:39:07,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2022-11-22 01:39:07,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2022-11-22 01:39:07,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2022-11-22 01:39:07,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2022-11-22 01:39:07,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2022-11-22 01:39:07,210 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2022-11-22 01:39:07,210 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2022-11-22 01:39:07,211 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2022-11-22 01:39:07,211 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2022-11-22 01:39:07,212 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2022-11-22 01:39:07,212 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2022-11-22 01:39:07,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:39:07,285 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-22 01:39:07,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:39:07,836 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2022-11-22 01:39:07,851 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2022-11-22 01:39:07,852 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2022-11-22 01:39:07,852 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2022-11-22 01:39:07,853 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2022-11-22 01:39:07,853 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2022-11-22 01:39:07,854 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2022-11-22 01:39:07,854 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2022-11-22 01:39:07,854 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2022-11-22 01:39:07,855 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2022-11-22 01:39:07,855 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2022-11-22 01:39:07,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2022-11-22 01:39:07,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2022-11-22 01:39:07,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2022-11-22 01:39:07,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2022-11-22 01:39:07,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2022-11-22 01:39:07,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2022-11-22 01:39:07,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2022-11-22 01:39:07,859 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2022-11-22 01:39:07,859 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2022-11-22 01:39:07,860 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2022-11-22 01:39:07,865 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2022-11-22 01:39:07,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2022-11-22 01:39:07,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2022-11-22 01:39:07,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2022-11-22 01:39:07,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2022-11-22 01:39:07,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2022-11-22 01:39:07,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2022-11-22 01:39:07,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2022-11-22 01:39:07,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2022-11-22 01:39:07,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2022-11-22 01:39:07,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2022-11-22 01:39:07,883 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2022-11-22 01:39:07,884 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2022-11-22 01:39:07,884 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2022-11-22 01:39:07,885 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2022-11-22 01:39:07,885 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2022-11-22 01:39:07,885 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2022-11-22 01:39:07,886 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2022-11-22 01:39:07,886 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2022-11-22 01:39:07,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2022-11-22 01:39:07,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2022-11-22 01:39:07,888 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2022-11-22 01:39:07,888 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2022-11-22 01:39:07,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2022-11-22 01:39:07,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2022-11-22 01:39:07,889 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2022-11-22 01:39:07,890 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2022-11-22 01:39:07,890 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2022-11-22 01:39:07,891 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2022-11-22 01:39:07,891 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2022-11-22 01:39:07,891 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2022-11-22 01:39:07,892 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2022-11-22 01:39:07,892 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2022-11-22 01:39:07,893 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2022-11-22 01:39:07,893 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2022-11-22 01:39:07,894 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2022-11-22 01:39:07,894 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2022-11-22 01:39:07,895 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2022-11-22 01:39:07,895 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2022-11-22 01:39:07,895 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2022-11-22 01:39:07,896 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2022-11-22 01:39:07,896 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2022-11-22 01:39:07,897 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2022-11-22 01:39:07,897 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2022-11-22 01:39:07,898 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2022-11-22 01:39:07,898 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2022-11-22 01:39:07,898 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2022-11-22 01:39:07,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2022-11-22 01:39:07,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2022-11-22 01:39:07,900 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2022-11-22 01:39:07,900 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2022-11-22 01:39:07,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2022-11-22 01:39:07,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2022-11-22 01:39:07,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2022-11-22 01:39:07,902 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2022-11-22 01:39:07,902 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2022-11-22 01:39:07,903 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2022-11-22 01:39:07,903 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2022-11-22 01:39:07,904 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2022-11-22 01:39:07,904 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2022-11-22 01:39:07,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2022-11-22 01:39:07,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2022-11-22 01:39:07,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2022-11-22 01:39:07,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2022-11-22 01:39:07,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2022-11-22 01:39:07,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2022-11-22 01:39:07,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2022-11-22 01:39:07,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:39:07,978 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:39:08,399 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2022-11-22 01:39:08,399 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2022-11-22 01:39:08,400 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2022-11-22 01:39:08,400 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2022-11-22 01:39:08,401 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2022-11-22 01:39:08,401 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2022-11-22 01:39:08,401 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2022-11-22 01:39:08,402 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2022-11-22 01:39:08,402 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2022-11-22 01:39:08,402 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2022-11-22 01:39:08,403 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2022-11-22 01:39:08,403 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2022-11-22 01:39:08,403 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2022-11-22 01:39:08,404 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2022-11-22 01:39:08,404 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2022-11-22 01:39:08,404 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2022-11-22 01:39:08,405 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2022-11-22 01:39:08,405 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2022-11-22 01:39:08,405 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2022-11-22 01:39:08,406 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2022-11-22 01:39:08,406 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2022-11-22 01:39:08,407 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2022-11-22 01:39:08,407 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2022-11-22 01:39:08,407 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2022-11-22 01:39:08,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2022-11-22 01:39:08,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2022-11-22 01:39:08,408 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2022-11-22 01:39:08,409 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2022-11-22 01:39:08,409 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2022-11-22 01:39:08,410 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2022-11-22 01:39:08,410 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2022-11-22 01:39:08,410 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2022-11-22 01:39:08,411 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2022-11-22 01:39:08,411 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2022-11-22 01:39:08,411 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2022-11-22 01:39:08,412 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2022-11-22 01:39:08,412 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2022-11-22 01:39:08,412 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2022-11-22 01:39:08,413 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2022-11-22 01:39:08,413 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2022-11-22 01:39:08,414 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2022-11-22 01:39:08,414 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2022-11-22 01:39:08,414 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_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2022-11-22 01:39:08,415 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2022-11-22 01:39:08,415 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2022-11-22 01:39:08,415 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2022-11-22 01:39:08,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2022-11-22 01:39:08,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2022-11-22 01:39:08,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2022-11-22 01:39:08,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2022-11-22 01:39:08,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2022-11-22 01:39:08,417 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2022-11-22 01:39:08,418 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2022-11-22 01:39:08,418 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2022-11-22 01:39:08,418 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2022-11-22 01:39:08,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2022-11-22 01:39:08,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2022-11-22 01:39:08,419 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2022-11-22 01:39:08,420 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2022-11-22 01:39:08,420 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2022-11-22 01:39:08,420 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2022-11-22 01:39:08,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2022-11-22 01:39:08,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2022-11-22 01:39:08,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2022-11-22 01:39:08,422 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2022-11-22 01:39:08,422 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2022-11-22 01:39:08,422 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2022-11-22 01:39:08,423 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2022-11-22 01:39:08,423 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2022-11-22 01:39:08,423 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2022-11-22 01:39:08,424 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2022-11-22 01:39:08,424 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2022-11-22 01:39:08,424 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2022-11-22 01:39:08,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2022-11-22 01:39:08,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2022-11-22 01:39:08,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2022-11-22 01:39:08,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2022-11-22 01:39:08,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2022-11-22 01:39:08,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2022-11-22 01:39:08,427 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2022-11-22 01:39:08,427 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2022-11-22 01:39:08,427 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2022-11-22 01:39:08,428 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2022-11-22 01:39:08,428 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2022-11-22 01:39:08,428 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2022-11-22 01:39:08,429 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2022-11-22 01:39:08,429 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2022-11-22 01:39:08,429 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2022-11-22 01:39:08,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:39:08,754 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:39:08,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08 WrapperNode [2022-11-22 01:39:08,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:39:08,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:39:08,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:39:08,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:39:08,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:08,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,115 INFO L138 Inliner]: procedures = 670, calls = 1967, calls flagged for inlining = 296, calls inlined = 213, statements flattened = 4014 [2022-11-22 01:39:09,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:39:09,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:39:09,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:39:09,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:39:09,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,390 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:39:09,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:39:09,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:39:09,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:39:09,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (1/1) ... [2022-11-22 01:39:09,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:39:09,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:39:09,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:39:09,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:39:09,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:39:09,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:39:09,534 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-22 01:39:09,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-22 01:39:09,534 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:39:09,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:39:09,534 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:39:09,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:39:09,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:39:09,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:39:09,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-22 01:39:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-22 01:39:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:39:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:39:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:39:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:39:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-22 01:39:09,535 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-22 01:39:09,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:39:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:39:09,536 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:39:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:39:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-22 01:39:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-22 01:39:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-22 01:39:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-22 01:39:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-22 01:39:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-22 01:39:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:39:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:39:09,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:39:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:39:09,538 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-22 01:39:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-22 01:39:09,538 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:39:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:39:09,538 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-22 01:39:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-22 01:39:09,538 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-22 01:39:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-22 01:39:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-22 01:39:09,539 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-22 01:39:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:39:09,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:39:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-22 01:39:09,539 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-22 01:39:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 01:39:09,539 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-22 01:39:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:39:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:39:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:39:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:39:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:39:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:39:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:39:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:39:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:39:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-22 01:39:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:39:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:39:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-22 01:39:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-22 01:39:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-22 01:39:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:39:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:39:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-22 01:39:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-22 01:39:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:39:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:39:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:39:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:39:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-22 01:39:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-22 01:39:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-22 01:39:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-22 01:39:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:39:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:39:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:39:09,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:39:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:39:09,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:39:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:39:09,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:39:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:39:09,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:39:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:39:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:39:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:39:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:39:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:39:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:39:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:39:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:39:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:39:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:39:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:39:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:39:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:39:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:39:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:39:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:39:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:39:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:39:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-22 01:39:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-22 01:39:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-22 01:39:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-22 01:39:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:39:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_ipg_nic_private [2022-11-22 01:39:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_ipg_nic_private [2022-11-22 01:39:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:39:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:39:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:39:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:39:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:39:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:39:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-22 01:39:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-22 01:39:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-22 01:39:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-22 01:39:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:39:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:39:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-22 01:39:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-22 01:39:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-22 01:39:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-22 01:39:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-22 01:39:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:39:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:39:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:39:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:39:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:39:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:39:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:39:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:39:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-22 01:39:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-22 01:39:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-22 01:39:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-22 01:39:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 01:39:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 01:39:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:39:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:39:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-22 01:39:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-22 01:39:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-22 01:39:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-22 01:39:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-22 01:39:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:39:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:39:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-22 01:39:09,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-22 01:39:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-22 01:39:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-22 01:39:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:39:09,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:39:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-22 01:39:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:39:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:39:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:39:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-22 01:39:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-22 01:39:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:39:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:39:09,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:39:09,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:39:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:39:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:39:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:39:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:39:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:39:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:39:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-22 01:39:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-22 01:39:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:39:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:39:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-22 01:39:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-22 01:39:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:39:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:39:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:39:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:39:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:39:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:39:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-22 01:39:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-22 01:39:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-22 01:39:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-22 01:39:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-22 01:39:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-22 01:39:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-22 01:39:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:39:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:39:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:39:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:39:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:39:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:39:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:39:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:39:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:39:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:39:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 01:39:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 01:39:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-22 01:39:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-22 01:39:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-22 01:39:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-22 01:39:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:39:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:39:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 01:39:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 01:39:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:39:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:39:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:39:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:39:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:39:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:39:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-22 01:39:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-22 01:39:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:39:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:39:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:39:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:39:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:39:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:39:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:39:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:39:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-22 01:39:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-22 01:39:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-22 01:39:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-22 01:39:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 01:39:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 01:39:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:39:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:39:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-22 01:39:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-22 01:39:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:39:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:39:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-22 01:39:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-22 01:39:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-22 01:39:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-22 01:39:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:39:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:39:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-22 01:39:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-22 01:39:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ipg_nic_private [2022-11-22 01:39:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ipg_nic_private [2022-11-22 01:39:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-22 01:39:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-22 01:39:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:39:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:39:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 01:39:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 01:39:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 01:39:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 01:39:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:39:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-22 01:39:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-22 01:39:10,476 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:39:10,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:39:21,888 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:39:51,692 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:39:51,712 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:39:51,712 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:39:51,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:39:51 BoogieIcfgContainer [2022-11-22 01:39:51,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:39:51,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:39:51,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:39:51,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:39:51,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:39:02" (1/3) ... [2022-11-22 01:39:51,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51adb2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:39:51, skipping insertion in model container [2022-11-22 01:39:51,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:08" (2/3) ... [2022-11-22 01:39:51,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51adb2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:39:51, skipping insertion in model container [2022-11-22 01:39:51,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:39:51" (3/3) ... [2022-11-22 01:39:51,725 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2022-11-22 01:39:51,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:39:51,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-22 01:39:51,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:39:51,834 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;@6aff8b70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:39:51,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-22 01:39:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 1726 states, 1128 states have (on average 1.24822695035461) internal successors, (1408), 1197 states have internal predecessors, (1408), 457 states have call successors, (457), 114 states have call predecessors, (457), 113 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) [2022-11-22 01:39:51,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-22 01:39:51,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:51,857 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] [2022-11-22 01:39:51,857 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 27 more)] === [2022-11-22 01:39:51,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash -563816690, now seen corresponding path program 1 times [2022-11-22 01:39:51,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:39:51,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201373125] [2022-11-22 01:39:51,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:51,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:39:51,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:39:51,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:39:51,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:39:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:53,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:39:53,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:39:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:39:54,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:39:54,135 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:39:54,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201373125] [2022-11-22 01:39:54,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201373125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:54,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:54,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:39:54,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003230588] [2022-11-22 01:39:54,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:54,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:39:54,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:39:54,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:39:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:39:54,195 INFO L87 Difference]: Start difference. First operand has 1726 states, 1128 states have (on average 1.24822695035461) internal successors, (1408), 1197 states have internal predecessors, (1408), 457 states have call successors, (457), 114 states have call predecessors, (457), 113 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-11-22 01:39:54,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:54,704 INFO L93 Difference]: Finished difference Result 3413 states and 4700 transitions. [2022-11-22 01:39:54,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:39:54,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 64 [2022-11-22 01:39:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:54,743 INFO L225 Difference]: With dead ends: 3413 [2022-11-22 01:39:54,743 INFO L226 Difference]: Without dead ends: 1702 [2022-11-22 01:39:54,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:39:54,762 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 2219 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 4530 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 [2022-11-22 01:39:54,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 4530 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:39:54,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2022-11-22 01:39:54,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2022-11-22 01:39:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1111 states have (on average 1.216921692169217) internal successors, (1352), 1176 states have internal predecessors, (1352), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-22 01:39:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2252 transitions. [2022-11-22 01:39:54,944 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2252 transitions. Word has length 64 [2022-11-22 01:39:54,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:54,946 INFO L495 AbstractCegarLoop]: Abstraction has 1702 states and 2252 transitions. [2022-11-22 01:39:54,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-11-22 01:39:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2252 transitions. [2022-11-22 01:39:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 01:39:54,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:54,950 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] [2022-11-22 01:39:54,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:39:55,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:39:55,176 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 27 more)] === [2022-11-22 01:39:55,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:55,177 INFO L85 PathProgramCache]: Analyzing trace with hash -119648752, now seen corresponding path program 1 times [2022-11-22 01:39:55,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:39:55,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3822024] [2022-11-22 01:39:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:55,179 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 [2022-11-22 01:39:55,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:39:55,181 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:39:55,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:39:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:56,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:39:56,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:39:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:39:57,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:39:57,422 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:39:57,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3822024] [2022-11-22 01:39:57,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3822024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:57,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:57,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:39:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109557321] [2022-11-22 01:39:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:57,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:39:57,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:39:57,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:39:57,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:39:57,427 INFO L87 Difference]: Start difference. First operand 1702 states and 2252 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-11-22 01:39:57,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:57,642 INFO L93 Difference]: Finished difference Result 1702 states and 2252 transitions. [2022-11-22 01:39:57,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:39:57,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 70 [2022-11-22 01:39:57,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:57,655 INFO L225 Difference]: With dead ends: 1702 [2022-11-22 01:39:57,655 INFO L226 Difference]: Without dead ends: 1700 [2022-11-22 01:39:57,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:39:57,657 INFO L413 NwaCegarLoop]: 2248 mSDtfsCounter, 2195 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 4494 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 [2022-11-22 01:39:57,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 4494 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:39:57,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-11-22 01:39:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1700. [2022-11-22 01:39:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1110 states have (on average 1.2162162162162162) internal successors, (1350), 1174 states have internal predecessors, (1350), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-22 01:39:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2250 transitions. [2022-11-22 01:39:57,837 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2250 transitions. Word has length 70 [2022-11-22 01:39:57,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:57,838 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 2250 transitions. [2022-11-22 01:39:57,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-11-22 01:39:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2250 transitions. [2022-11-22 01:39:57,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:39:57,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:57,841 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] [2022-11-22 01:39:57,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:39:58,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:39:58,042 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 27 more)] === [2022-11-22 01:39:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash 442677403, now seen corresponding path program 1 times [2022-11-22 01:39:58,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:39:58,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111876389] [2022-11-22 01:39:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:58,045 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 [2022-11-22 01:39:58,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:39:58,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:39:58,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:39:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:59,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:39:59,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:00,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:00,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:00,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111876389] [2022-11-22 01:40:00,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111876389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:00,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:00,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:00,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823673312] [2022-11-22 01:40:00,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:00,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:00,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:00,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:00,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:00,293 INFO L87 Difference]: Start difference. First operand 1700 states and 2250 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2022-11-22 01:40:00,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:00,536 INFO L93 Difference]: Finished difference Result 1700 states and 2250 transitions. [2022-11-22 01:40:00,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:00,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 76 [2022-11-22 01:40:00,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:00,548 INFO L225 Difference]: With dead ends: 1700 [2022-11-22 01:40:00,548 INFO L226 Difference]: Without dead ends: 1698 [2022-11-22 01:40:00,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:00,554 INFO L413 NwaCegarLoop]: 2246 mSDtfsCounter, 2187 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 4490 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 [2022-11-22 01:40:00,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 4490 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:00,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2022-11-22 01:40:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1698. [2022-11-22 01:40:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1109 states have (on average 1.2155094679891794) internal successors, (1348), 1172 states have internal predecessors, (1348), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-22 01:40:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2248 transitions. [2022-11-22 01:40:00,698 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2248 transitions. Word has length 76 [2022-11-22 01:40:00,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:00,698 INFO L495 AbstractCegarLoop]: Abstraction has 1698 states and 2248 transitions. [2022-11-22 01:40:00,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2022-11-22 01:40:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2248 transitions. [2022-11-22 01:40:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-22 01:40:00,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:00,708 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] [2022-11-22 01:40:00,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:00,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:00,936 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 27 more)] === [2022-11-22 01:40:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:00,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1915162971, now seen corresponding path program 1 times [2022-11-22 01:40:00,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:00,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142669983] [2022-11-22 01:40:00,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:00,939 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 [2022-11-22 01:40:00,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:00,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:00,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:02,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:02,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:03,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:03,160 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:03,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142669983] [2022-11-22 01:40:03,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142669983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:03,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:03,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:03,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125169669] [2022-11-22 01:40:03,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:03,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:03,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:03,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:03,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:03,163 INFO L87 Difference]: Start difference. First operand 1698 states and 2248 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-11-22 01:40:03,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:03,423 INFO L93 Difference]: Finished difference Result 1698 states and 2248 transitions. [2022-11-22 01:40:03,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 82 [2022-11-22 01:40:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:03,438 INFO L225 Difference]: With dead ends: 1698 [2022-11-22 01:40:03,438 INFO L226 Difference]: Without dead ends: 1696 [2022-11-22 01:40:03,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:03,441 INFO L413 NwaCegarLoop]: 2244 mSDtfsCounter, 2179 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 4486 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 [2022-11-22 01:40:03,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 4486 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:03,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2022-11-22 01:40:03,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1696. [2022-11-22 01:40:03,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1108 states have (on average 1.2148014440433212) internal successors, (1346), 1170 states have internal predecessors, (1346), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-22 01:40:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2246 transitions. [2022-11-22 01:40:03,609 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2246 transitions. Word has length 82 [2022-11-22 01:40:03,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:03,610 INFO L495 AbstractCegarLoop]: Abstraction has 1696 states and 2246 transitions. [2022-11-22 01:40:03,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2022-11-22 01:40:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2246 transitions. [2022-11-22 01:40:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-22 01:40:03,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:03,612 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] [2022-11-22 01:40:03,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:03,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:03,837 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 27 more)] === [2022-11-22 01:40:03,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:03,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2019156798, now seen corresponding path program 1 times [2022-11-22 01:40:03,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:03,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727827389] [2022-11-22 01:40:03,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:03,839 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 [2022-11-22 01:40:03,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:03,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:03,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:04,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:04,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:05,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:05,929 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:05,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727827389] [2022-11-22 01:40:05,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727827389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:05,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:05,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:05,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135397869] [2022-11-22 01:40:05,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:05,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:05,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:05,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:05,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:05,932 INFO L87 Difference]: Start difference. First operand 1696 states and 2246 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-22 01:40:06,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:06,197 INFO L93 Difference]: Finished difference Result 1696 states and 2246 transitions. [2022-11-22 01:40:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:06,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 88 [2022-11-22 01:40:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:06,221 INFO L225 Difference]: With dead ends: 1696 [2022-11-22 01:40:06,221 INFO L226 Difference]: Without dead ends: 1694 [2022-11-22 01:40:06,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:06,223 INFO L413 NwaCegarLoop]: 2242 mSDtfsCounter, 2171 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 4482 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 [2022-11-22 01:40:06,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 4482 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:06,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-22 01:40:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1694. [2022-11-22 01:40:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1107 states have (on average 1.2140921409214092) internal successors, (1344), 1168 states have internal predecessors, (1344), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-22 01:40:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2244 transitions. [2022-11-22 01:40:06,389 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2244 transitions. Word has length 88 [2022-11-22 01:40:06,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:06,391 INFO L495 AbstractCegarLoop]: Abstraction has 1694 states and 2244 transitions. [2022-11-22 01:40:06,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-11-22 01:40:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2244 transitions. [2022-11-22 01:40:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:40:06,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:06,396 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] [2022-11-22 01:40:06,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:06,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:06,597 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:40:06,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1391724031, now seen corresponding path program 1 times [2022-11-22 01:40:06,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:06,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822889896] [2022-11-22 01:40:06,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:06,599 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 [2022-11-22 01:40:06,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:06,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:06,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:07,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-22 01:40:07,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-22 01:40:09,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:09,733 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:09,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822889896] [2022-11-22 01:40:09,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822889896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:09,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:09,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:40:09,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087973815] [2022-11-22 01:40:09,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:09,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:40:09,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:40:09,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:40:09,735 INFO L87 Difference]: Start difference. First operand 1694 states and 2244 transitions. Second operand has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:40:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:14,271 INFO L93 Difference]: Finished difference Result 3458 states and 4604 transitions. [2022-11-22 01:40:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:40:14,272 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) Word has length 111 [2022-11-22 01:40:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:14,285 INFO L225 Difference]: With dead ends: 3458 [2022-11-22 01:40:14,285 INFO L226 Difference]: Without dead ends: 1781 [2022-11-22 01:40:14,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:40:14,294 INFO L413 NwaCegarLoop]: 2351 mSDtfsCounter, 331 mSDsluCounter, 22944 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 25295 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:14,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 25295 Invalid, 435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-22 01:40:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-11-22 01:40:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1694. [2022-11-22 01:40:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1107 states have (on average 1.2131887985546521) internal successors, (1343), 1167 states have internal predecessors, (1343), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-22 01:40:14,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2243 transitions. [2022-11-22 01:40:14,482 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2243 transitions. Word has length 111 [2022-11-22 01:40:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:14,483 INFO L495 AbstractCegarLoop]: Abstraction has 1694 states and 2243 transitions. [2022-11-22 01:40:14,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:40:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2243 transitions. [2022-11-22 01:40:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-22 01:40:14,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:14,486 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] [2022-11-22 01:40:14,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:14,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:14,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 27 more)] === [2022-11-22 01:40:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1008978099, now seen corresponding path program 1 times [2022-11-22 01:40:14,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:14,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104695444] [2022-11-22 01:40:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:14,701 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 [2022-11-22 01:40:14,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:14,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:14,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:15,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:15,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:17,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:17,022 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:17,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104695444] [2022-11-22 01:40:17,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104695444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:17,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:17,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:17,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661293849] [2022-11-22 01:40:17,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:17,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:17,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:17,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:17,025 INFO L87 Difference]: Start difference. First operand 1694 states and 2243 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-11-22 01:40:17,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:17,302 INFO L93 Difference]: Finished difference Result 1694 states and 2243 transitions. [2022-11-22 01:40:17,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:17,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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 94 [2022-11-22 01:40:17,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:17,313 INFO L225 Difference]: With dead ends: 1694 [2022-11-22 01:40:17,313 INFO L226 Difference]: Without dead ends: 1692 [2022-11-22 01:40:17,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:17,316 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 2162 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 4476 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 [2022-11-22 01:40:17,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 4476 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:17,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-11-22 01:40:17,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1692. [2022-11-22 01:40:17,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1106 states have (on average 1.2124773960217) internal successors, (1341), 1165 states have internal predecessors, (1341), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2022-11-22 01:40:17,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2241 transitions. [2022-11-22 01:40:17,515 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2241 transitions. Word has length 94 [2022-11-22 01:40:17,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:17,516 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 2241 transitions. [2022-11-22 01:40:17,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 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) [2022-11-22 01:40:17,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2241 transitions. [2022-11-22 01:40:17,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:40:17,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:17,557 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] [2022-11-22 01:40:17,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:17,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:17,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:40:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:17,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1691562532, now seen corresponding path program 1 times [2022-11-22 01:40:17,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:17,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183981111] [2022-11-22 01:40:17,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:17,766 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 [2022-11-22 01:40:17,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:17,767 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:17,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-22 01:40:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:19,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:40:19,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-22 01:40:19,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:19,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:19,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183981111] [2022-11-22 01:40:19,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183981111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:19,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:19,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:19,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452935621] [2022-11-22 01:40:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:19,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:19,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:19,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:19,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:19,230 INFO L87 Difference]: Start difference. First operand 1692 states and 2241 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:40:19,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:19,802 INFO L93 Difference]: Finished difference Result 4478 states and 5946 transitions. [2022-11-22 01:40:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:19,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-11-22 01:40:19,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:19,818 INFO L225 Difference]: With dead ends: 4478 [2022-11-22 01:40:19,818 INFO L226 Difference]: Without dead ends: 2807 [2022-11-22 01:40:19,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:19,826 INFO L413 NwaCegarLoop]: 3217 mSDtfsCounter, 2220 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:19,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 4711 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:40:19,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2022-11-22 01:40:20,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2793. [2022-11-22 01:40:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 1839 states have (on average 1.2185970636215335) internal successors, (2241), 1924 states have internal predecessors, (2241), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3725 transitions. [2022-11-22 01:40:20,229 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3725 transitions. Word has length 115 [2022-11-22 01:40:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:20,230 INFO L495 AbstractCegarLoop]: Abstraction has 2793 states and 3725 transitions. [2022-11-22 01:40:20,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 01:40:20,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3725 transitions. [2022-11-22 01:40:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 01:40:20,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:20,236 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] [2022-11-22 01:40:20,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:20,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:20,459 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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 27 more)] === [2022-11-22 01:40:20,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:20,460 INFO L85 PathProgramCache]: Analyzing trace with hash -781538294, now seen corresponding path program 1 times [2022-11-22 01:40:20,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:20,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156791786] [2022-11-22 01:40:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:20,461 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 [2022-11-22 01:40:20,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:20,462 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:20,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:21,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:21,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:22,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:22,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:22,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156791786] [2022-11-22 01:40:22,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156791786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:22,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:22,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:22,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142697584] [2022-11-22 01:40:22,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:22,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:22,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:22,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:22,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:22,673 INFO L87 Difference]: Start difference. First operand 2793 states and 3725 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 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) [2022-11-22 01:40:23,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:23,088 INFO L93 Difference]: Finished difference Result 2793 states and 3725 transitions. [2022-11-22 01:40:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:23,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 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 100 [2022-11-22 01:40:23,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:23,106 INFO L225 Difference]: With dead ends: 2793 [2022-11-22 01:40:23,106 INFO L226 Difference]: Without dead ends: 2791 [2022-11-22 01:40:23,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:23,111 INFO L413 NwaCegarLoop]: 2237 mSDtfsCounter, 2154 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 4472 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 [2022-11-22 01:40:23,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 4472 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-11-22 01:40:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2791. [2022-11-22 01:40:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 1838 states have (on average 1.218171926006529) internal successors, (2239), 1922 states have internal predecessors, (2239), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3723 transitions. [2022-11-22 01:40:23,512 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3723 transitions. Word has length 100 [2022-11-22 01:40:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:23,513 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 3723 transitions. [2022-11-22 01:40:23,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 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) [2022-11-22 01:40:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3723 transitions. [2022-11-22 01:40:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 01:40:23,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:23,516 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2022-11-22 01:40:23,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:23,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:23,740 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:40:23,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:23,740 INFO L85 PathProgramCache]: Analyzing trace with hash 111297715, now seen corresponding path program 1 times [2022-11-22 01:40:23,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:23,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495895196] [2022-11-22 01:40:23,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:23,742 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 [2022-11-22 01:40:23,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:23,748 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:23,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-22 01:40:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:25,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:40:25,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-22 01:40:25,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:25,383 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:25,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495895196] [2022-11-22 01:40:25,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495895196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:25,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:25,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:25,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101732089] [2022-11-22 01:40:25,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:25,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:40:25,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:25,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:40:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:25,385 INFO L87 Difference]: Start difference. First operand 2791 states and 3723 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:40:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:25,974 INFO L93 Difference]: Finished difference Result 5557 states and 7412 transitions. [2022-11-22 01:40:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:40:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2022-11-22 01:40:25,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:25,994 INFO L225 Difference]: With dead ends: 5557 [2022-11-22 01:40:25,994 INFO L226 Difference]: Without dead ends: 2787 [2022-11-22 01:40:26,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:40:26,006 INFO L413 NwaCegarLoop]: 2233 mSDtfsCounter, 2216 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 2233 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 [2022-11-22 01:40:26,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 2233 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2022-11-22 01:40:26,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2787. [2022-11-22 01:40:26,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 1835 states have (on average 1.2174386920980926) internal successors, (2234), 1918 states have internal predecessors, (2234), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3718 transitions. [2022-11-22 01:40:26,458 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3718 transitions. Word has length 121 [2022-11-22 01:40:26,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:26,458 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 3718 transitions. [2022-11-22 01:40:26,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-22 01:40:26,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3718 transitions. [2022-11-22 01:40:26,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 01:40:26,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:26,461 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] [2022-11-22 01:40:26,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:26,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:26,688 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 27 more)] === [2022-11-22 01:40:26,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:26,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1699523689, now seen corresponding path program 1 times [2022-11-22 01:40:26,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:26,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054882185] [2022-11-22 01:40:26,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:26,691 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 [2022-11-22 01:40:26,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:26,693 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:26,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:27,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:27,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:28,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:28,928 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:28,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054882185] [2022-11-22 01:40:28,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054882185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:28,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:28,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:28,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736394029] [2022-11-22 01:40:28,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:28,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:28,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:28,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:28,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:28,931 INFO L87 Difference]: Start difference. First operand 2787 states and 3718 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-11-22 01:40:29,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:29,429 INFO L93 Difference]: Finished difference Result 2787 states and 3718 transitions. [2022-11-22 01:40:29,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:29,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 106 [2022-11-22 01:40:29,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:29,444 INFO L225 Difference]: With dead ends: 2787 [2022-11-22 01:40:29,444 INFO L226 Difference]: Without dead ends: 2785 [2022-11-22 01:40:29,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:29,447 INFO L413 NwaCegarLoop]: 2230 mSDtfsCounter, 2145 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 4454 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 [2022-11-22 01:40:29,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2147 Valid, 4454 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2022-11-22 01:40:29,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2785. [2022-11-22 01:40:29,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 1834 states have (on average 1.21701199563795) internal successors, (2232), 1916 states have internal predecessors, (2232), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 3716 transitions. [2022-11-22 01:40:29,819 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 3716 transitions. Word has length 106 [2022-11-22 01:40:29,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:29,822 INFO L495 AbstractCegarLoop]: Abstraction has 2785 states and 3716 transitions. [2022-11-22 01:40:29,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-11-22 01:40:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 3716 transitions. [2022-11-22 01:40:29,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-22 01:40:29,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:29,824 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] [2022-11-22 01:40:29,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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)] Ended with exit code 0 [2022-11-22 01:40:30,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:30,039 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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 27 more)] === [2022-11-22 01:40:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1154531110, now seen corresponding path program 1 times [2022-11-22 01:40:30,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:30,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904660717] [2022-11-22 01:40:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:30,040 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 [2022-11-22 01:40:30,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:30,041 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:30,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:31,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:31,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:32,494 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:32,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:32,494 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:32,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904660717] [2022-11-22 01:40:32,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904660717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:32,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:32,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:32,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120643984] [2022-11-22 01:40:32,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:32,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:32,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:32,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:32,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:32,497 INFO L87 Difference]: Start difference. First operand 2785 states and 3716 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) [2022-11-22 01:40:33,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:33,066 INFO L93 Difference]: Finished difference Result 2785 states and 3716 transitions. [2022-11-22 01:40:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:33,067 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 [2022-11-22 01:40:33,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:33,112 INFO L225 Difference]: With dead ends: 2785 [2022-11-22 01:40:33,113 INFO L226 Difference]: Without dead ends: 2783 [2022-11-22 01:40:33,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:33,115 INFO L413 NwaCegarLoop]: 2228 mSDtfsCounter, 2137 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 4454 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 [2022-11-22 01:40:33,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 4454 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:33,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-11-22 01:40:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2783. [2022-11-22 01:40:33,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 1833 states have (on average 1.2165848336061102) internal successors, (2230), 1914 states have internal predecessors, (2230), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:33,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3714 transitions. [2022-11-22 01:40:33,647 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3714 transitions. Word has length 108 [2022-11-22 01:40:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:33,648 INFO L495 AbstractCegarLoop]: Abstraction has 2783 states and 3714 transitions. [2022-11-22 01:40:33,648 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) [2022-11-22 01:40:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3714 transitions. [2022-11-22 01:40:33,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:40:33,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:33,651 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] [2022-11-22 01:40:33,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:33,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:33,875 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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 27 more)] === [2022-11-22 01:40:33,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1610848167, now seen corresponding path program 1 times [2022-11-22 01:40:33,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:33,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066827788] [2022-11-22 01:40:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:33,878 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 [2022-11-22 01:40:33,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:33,881 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:33,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-22 01:40:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:35,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:35,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:36,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:36,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:36,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066827788] [2022-11-22 01:40:36,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066827788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:36,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:36,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:36,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196125076] [2022-11-22 01:40:36,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:36,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:36,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:36,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:36,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:36,379 INFO L87 Difference]: Start difference. First operand 2783 states and 3714 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2022-11-22 01:40:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:36,926 INFO L93 Difference]: Finished difference Result 2783 states and 3714 transitions. [2022-11-22 01:40:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:36,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 114 [2022-11-22 01:40:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:36,939 INFO L225 Difference]: With dead ends: 2783 [2022-11-22 01:40:36,939 INFO L226 Difference]: Without dead ends: 2781 [2022-11-22 01:40:36,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:36,941 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 2129 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 4450 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 [2022-11-22 01:40:36,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 4450 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2022-11-22 01:40:37,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2781. [2022-11-22 01:40:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 1832 states have (on average 1.2161572052401746) internal successors, (2228), 1912 states have internal predecessors, (2228), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3712 transitions. [2022-11-22 01:40:37,352 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3712 transitions. Word has length 114 [2022-11-22 01:40:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:37,353 INFO L495 AbstractCegarLoop]: Abstraction has 2781 states and 3712 transitions. [2022-11-22 01:40:37,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2022-11-22 01:40:37,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3712 transitions. [2022-11-22 01:40:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 01:40:37,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:37,355 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] [2022-11-22 01:40:37,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:37,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:37,571 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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 27 more)] === [2022-11-22 01:40:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:37,571 INFO L85 PathProgramCache]: Analyzing trace with hash -617601531, now seen corresponding path program 1 times [2022-11-22 01:40:37,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:37,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120489707] [2022-11-22 01:40:37,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:37,573 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 [2022-11-22 01:40:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:37,575 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:37,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:38,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:38,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:40,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:40,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:40,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120489707] [2022-11-22 01:40:40,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120489707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:40,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:40,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:40,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394971270] [2022-11-22 01:40:40,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:40,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:40,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:40,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:40,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:40,231 INFO L87 Difference]: Start difference. First operand 2781 states and 3712 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2022-11-22 01:40:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:40,662 INFO L93 Difference]: Finished difference Result 2781 states and 3712 transitions. [2022-11-22 01:40:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:40,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 120 [2022-11-22 01:40:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:40,672 INFO L225 Difference]: With dead ends: 2781 [2022-11-22 01:40:40,673 INFO L226 Difference]: Without dead ends: 2779 [2022-11-22 01:40:40,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:40,675 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2121 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 4446 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 [2022-11-22 01:40:40,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2123 Valid, 4446 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:40,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2022-11-22 01:40:41,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2779. [2022-11-22 01:40:41,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 1831 states have (on average 1.2157291097760787) internal successors, (2226), 1910 states have internal predecessors, (2226), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:41,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3710 transitions. [2022-11-22 01:40:41,180 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3710 transitions. Word has length 120 [2022-11-22 01:40:41,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:41,180 INFO L495 AbstractCegarLoop]: Abstraction has 2779 states and 3710 transitions. [2022-11-22 01:40:41,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2022-11-22 01:40:41,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3710 transitions. [2022-11-22 01:40:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 01:40:41,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:41,184 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] [2022-11-22 01:40:41,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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)] Ended with exit code 0 [2022-11-22 01:40:41,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:41,408 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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 27 more)] === [2022-11-22 01:40:41,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash -761900314, now seen corresponding path program 1 times [2022-11-22 01:40:41,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:41,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213618822] [2022-11-22 01:40:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:41,410 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 [2022-11-22 01:40:41,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:41,415 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:41,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:42,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:42,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:44,137 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:44,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:44,138 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:44,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213618822] [2022-11-22 01:40:44,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213618822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:44,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:44,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:44,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802401890] [2022-11-22 01:40:44,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:44,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:44,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:44,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:44,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:44,141 INFO L87 Difference]: Start difference. First operand 2779 states and 3710 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-11-22 01:40:44,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:44,541 INFO L93 Difference]: Finished difference Result 2779 states and 3710 transitions. [2022-11-22 01:40:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:44,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 126 [2022-11-22 01:40:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:44,549 INFO L225 Difference]: With dead ends: 2779 [2022-11-22 01:40:44,549 INFO L226 Difference]: Without dead ends: 2777 [2022-11-22 01:40:44,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:44,551 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 2113 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 4442 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 [2022-11-22 01:40:44,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 4442 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:44,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-11-22 01:40:44,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2777. [2022-11-22 01:40:44,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 1830 states have (on average 1.2153005464480875) internal successors, (2224), 1908 states have internal predecessors, (2224), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3708 transitions. [2022-11-22 01:40:44,964 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3708 transitions. Word has length 126 [2022-11-22 01:40:44,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:44,965 INFO L495 AbstractCegarLoop]: Abstraction has 2777 states and 3708 transitions. [2022-11-22 01:40:44,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-11-22 01:40:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3708 transitions. [2022-11-22 01:40:44,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-22 01:40:44,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:44,968 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] [2022-11-22 01:40:44,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:45,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:45,192 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 27 more)] === [2022-11-22 01:40:45,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:45,193 INFO L85 PathProgramCache]: Analyzing trace with hash 444973991, now seen corresponding path program 1 times [2022-11-22 01:40:45,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:45,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236929268] [2022-11-22 01:40:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:45,194 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 [2022-11-22 01:40:45,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:45,196 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:45,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:46,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:46,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:47,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:47,874 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:47,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236929268] [2022-11-22 01:40:47,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236929268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:47,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:47,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:47,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612803531] [2022-11-22 01:40:47,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:47,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:47,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:47,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:47,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:47,877 INFO L87 Difference]: Start difference. First operand 2777 states and 3708 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-11-22 01:40:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:48,309 INFO L93 Difference]: Finished difference Result 2777 states and 3708 transitions. [2022-11-22 01:40:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:48,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 132 [2022-11-22 01:40:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:48,319 INFO L225 Difference]: With dead ends: 2777 [2022-11-22 01:40:48,319 INFO L226 Difference]: Without dead ends: 2775 [2022-11-22 01:40:48,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:48,321 INFO L413 NwaCegarLoop]: 2220 mSDtfsCounter, 2105 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 4438 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 [2022-11-22 01:40:48,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 4438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2022-11-22 01:40:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2775. [2022-11-22 01:40:48,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 1829 states have (on average 1.2148715144887916) internal successors, (2222), 1906 states have internal predecessors, (2222), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3706 transitions. [2022-11-22 01:40:48,696 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3706 transitions. Word has length 132 [2022-11-22 01:40:48,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:48,697 INFO L495 AbstractCegarLoop]: Abstraction has 2775 states and 3706 transitions. [2022-11-22 01:40:48,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-11-22 01:40:48,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3706 transitions. [2022-11-22 01:40:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-22 01:40:48,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:48,698 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] [2022-11-22 01:40:48,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:48,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:48,899 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 27 more)] === [2022-11-22 01:40:48,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:48,899 INFO L85 PathProgramCache]: Analyzing trace with hash 367684943, now seen corresponding path program 1 times [2022-11-22 01:40:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:48,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338596376] [2022-11-22 01:40:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:48,900 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 [2022-11-22 01:40:48,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:48,901 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:48,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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)] Waiting until timeout for monitored process [2022-11-22 01:40:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:50,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:50,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:51,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:51,718 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:51,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338596376] [2022-11-22 01:40:51,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338596376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:51,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:51,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:51,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520446082] [2022-11-22 01:40:51,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:51,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:51,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:51,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:51,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:51,722 INFO L87 Difference]: Start difference. First operand 2775 states and 3706 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-11-22 01:40:52,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:52,225 INFO L93 Difference]: Finished difference Result 2775 states and 3706 transitions. [2022-11-22 01:40:52,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:52,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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 138 [2022-11-22 01:40:52,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:52,237 INFO L225 Difference]: With dead ends: 2775 [2022-11-22 01:40:52,237 INFO L226 Difference]: Without dead ends: 2773 [2022-11-22 01:40:52,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:52,240 INFO L413 NwaCegarLoop]: 2218 mSDtfsCounter, 2097 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 4434 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 [2022-11-22 01:40:52,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 4434 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-11-22 01:40:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2773. [2022-11-22 01:40:52,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2773 states, 1828 states have (on average 1.214442013129103) internal successors, (2220), 1904 states have internal predecessors, (2220), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 3704 transitions. [2022-11-22 01:40:52,901 INFO L78 Accepts]: Start accepts. Automaton has 2773 states and 3704 transitions. Word has length 138 [2022-11-22 01:40:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:52,902 INFO L495 AbstractCegarLoop]: Abstraction has 2773 states and 3704 transitions. [2022-11-22 01:40:52,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-11-22 01:40:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2773 states and 3704 transitions. [2022-11-22 01:40:52,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-22 01:40:52,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:52,904 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] [2022-11-22 01:40:52,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:53,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:53,127 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 27 more)] === [2022-11-22 01:40:53,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:53,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1920940762, now seen corresponding path program 1 times [2022-11-22 01:40:53,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:53,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596879924] [2022-11-22 01:40:53,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:53,129 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 [2022-11-22 01:40:53,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:53,130 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:53,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:54,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:54,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:55,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:55,893 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:55,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596879924] [2022-11-22 01:40:55,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596879924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:55,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:55,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003579988] [2022-11-22 01:40:55,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:55,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:55,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:55,896 INFO L87 Difference]: Start difference. First operand 2773 states and 3704 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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) [2022-11-22 01:40:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:56,369 INFO L93 Difference]: Finished difference Result 2773 states and 3704 transitions. [2022-11-22 01:40:56,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:40:56,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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 144 [2022-11-22 01:40:56,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:56,378 INFO L225 Difference]: With dead ends: 2773 [2022-11-22 01:40:56,379 INFO L226 Difference]: Without dead ends: 2771 [2022-11-22 01:40:56,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:40:56,381 INFO L413 NwaCegarLoop]: 2216 mSDtfsCounter, 2089 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 4430 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 [2022-11-22 01:40:56,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 4430 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:40:56,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-11-22 01:40:56,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2771. [2022-11-22 01:40:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 1827 states have (on average 1.2140120415982485) internal successors, (2218), 1902 states have internal predecessors, (2218), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:40:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 3702 transitions. [2022-11-22 01:40:56,902 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 3702 transitions. Word has length 144 [2022-11-22 01:40:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:56,902 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 3702 transitions. [2022-11-22 01:40:56,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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) [2022-11-22 01:40:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 3702 transitions. [2022-11-22 01:40:56,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-22 01:40:56,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:56,904 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] [2022-11-22 01:40:56,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:57,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:40:57,104 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 27 more)] === [2022-11-22 01:40:57,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:57,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1304796745, now seen corresponding path program 1 times [2022-11-22 01:40:57,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:40:57,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107292156] [2022-11-22 01:40:57,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:57,106 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 [2022-11-22 01:40:57,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:40:57,107 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:40:57,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:40:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:58,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:40:58,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:40:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:40:59,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:40:59,862 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:40:59,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107292156] [2022-11-22 01:40:59,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107292156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:59,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:59,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:40:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629882714] [2022-11-22 01:40:59,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:59,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:40:59,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:40:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:40:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:40:59,864 INFO L87 Difference]: Start difference. First operand 2771 states and 3702 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-11-22 01:41:00,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:00,354 INFO L93 Difference]: Finished difference Result 2771 states and 3702 transitions. [2022-11-22 01:41:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:41:00,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 150 [2022-11-22 01:41:00,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:00,364 INFO L225 Difference]: With dead ends: 2771 [2022-11-22 01:41:00,365 INFO L226 Difference]: Without dead ends: 2769 [2022-11-22 01:41:00,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:00,367 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 2081 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 4426 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 [2022-11-22 01:41:00,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2083 Valid, 4426 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:41:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-11-22 01:41:01,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2022-11-22 01:41:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 1826 states have (on average 1.2135815991237677) internal successors, (2216), 1900 states have internal predecessors, (2216), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:41:01,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3700 transitions. [2022-11-22 01:41:01,062 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3700 transitions. Word has length 150 [2022-11-22 01:41:01,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:01,062 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 3700 transitions. [2022-11-22 01:41:01,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-11-22 01:41:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3700 transitions. [2022-11-22 01:41:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-22 01:41:01,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:01,065 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] [2022-11-22 01:41:01,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:01,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:01,289 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 27 more)] === [2022-11-22 01:41:01,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash -701781334, now seen corresponding path program 1 times [2022-11-22 01:41:01,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:01,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571417245] [2022-11-22 01:41:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:01,291 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 [2022-11-22 01:41:01,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:01,292 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:01,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:02,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:41:02,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:41:04,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:04,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:04,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571417245] [2022-11-22 01:41:04,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571417245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:04,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:04,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:41:04,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287001021] [2022-11-22 01:41:04,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:04,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:41:04,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:04,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:41:04,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:41:04,113 INFO L87 Difference]: Start difference. First operand 2769 states and 3700 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-11-22 01:41:04,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:04,602 INFO L93 Difference]: Finished difference Result 2769 states and 3700 transitions. [2022-11-22 01:41:04,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:41:04,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 156 [2022-11-22 01:41:04,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:04,612 INFO L225 Difference]: With dead ends: 2769 [2022-11-22 01:41:04,613 INFO L226 Difference]: Without dead ends: 2767 [2022-11-22 01:41:04,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:04,615 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 2073 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 4422 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 [2022-11-22 01:41:04,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 4422 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:41:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2022-11-22 01:41:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2767. [2022-11-22 01:41:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2767 states, 1825 states have (on average 1.2131506849315068) internal successors, (2214), 1898 states have internal predecessors, (2214), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:41:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 3698 transitions. [2022-11-22 01:41:05,327 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 3698 transitions. Word has length 156 [2022-11-22 01:41:05,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:05,328 INFO L495 AbstractCegarLoop]: Abstraction has 2767 states and 3698 transitions. [2022-11-22 01:41:05,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-11-22 01:41:05,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 3698 transitions. [2022-11-22 01:41:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-22 01:41:05,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:05,330 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] [2022-11-22 01:41:05,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:05,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:05,543 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 27 more)] === [2022-11-22 01:41:05,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:05,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1828443193, now seen corresponding path program 1 times [2022-11-22 01:41:05,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:05,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223508582] [2022-11-22 01:41:05,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:05,545 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 [2022-11-22 01:41:05,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:05,546 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:05,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:06,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:41:06,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:41:08,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:08,412 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:08,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223508582] [2022-11-22 01:41:08,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223508582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:08,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:08,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:41:08,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812624929] [2022-11-22 01:41:08,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:08,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:41:08,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:08,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:41:08,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:41:08,414 INFO L87 Difference]: Start difference. First operand 2767 states and 3698 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2022-11-22 01:41:09,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:09,146 INFO L93 Difference]: Finished difference Result 2767 states and 3698 transitions. [2022-11-22 01:41:09,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:41:09,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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 162 [2022-11-22 01:41:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:09,157 INFO L225 Difference]: With dead ends: 2767 [2022-11-22 01:41:09,157 INFO L226 Difference]: Without dead ends: 2765 [2022-11-22 01:41:09,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:09,160 INFO L413 NwaCegarLoop]: 2210 mSDtfsCounter, 2065 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 4418 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 [2022-11-22 01:41:09,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 4418 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:41:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-11-22 01:41:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2765. [2022-11-22 01:41:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 1824 states have (on average 1.212719298245614) internal successors, (2212), 1896 states have internal predecessors, (2212), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:41:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 3696 transitions. [2022-11-22 01:41:09,881 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 3696 transitions. Word has length 162 [2022-11-22 01:41:09,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:09,882 INFO L495 AbstractCegarLoop]: Abstraction has 2765 states and 3696 transitions. [2022-11-22 01:41:09,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2022-11-22 01:41:09,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 3696 transitions. [2022-11-22 01:41:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-22 01:41:09,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:09,885 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] [2022-11-22 01:41:09,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:10,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:10,107 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 27 more)] === [2022-11-22 01:41:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash 164931167, now seen corresponding path program 1 times [2022-11-22 01:41:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:10,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63039211] [2022-11-22 01:41:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:10,109 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 [2022-11-22 01:41:10,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:10,110 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:11,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:41:11,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:41:13,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:13,137 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:13,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63039211] [2022-11-22 01:41:13,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63039211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:13,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:13,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:41:13,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732537760] [2022-11-22 01:41:13,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:13,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:41:13,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:13,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:41:13,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:41:13,139 INFO L87 Difference]: Start difference. First operand 2765 states and 3696 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2022-11-22 01:41:13,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:13,673 INFO L93 Difference]: Finished difference Result 2765 states and 3696 transitions. [2022-11-22 01:41:13,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:41:13,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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 168 [2022-11-22 01:41:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:13,682 INFO L225 Difference]: With dead ends: 2765 [2022-11-22 01:41:13,682 INFO L226 Difference]: Without dead ends: 2763 [2022-11-22 01:41:13,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:13,684 INFO L413 NwaCegarLoop]: 2208 mSDtfsCounter, 2057 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 4414 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 [2022-11-22 01:41:13,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 4414 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:41:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2022-11-22 01:41:14,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2022-11-22 01:41:14,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 1823 states have (on average 1.2122874382885354) internal successors, (2210), 1894 states have internal predecessors, (2210), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2022-11-22 01:41:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3694 transitions. [2022-11-22 01:41:14,462 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3694 transitions. Word has length 168 [2022-11-22 01:41:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:14,462 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 3694 transitions. [2022-11-22 01:41:14,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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) [2022-11-22 01:41:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3694 transitions. [2022-11-22 01:41:14,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-22 01:41:14,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:14,465 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:14,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:14,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:14,692 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__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 27 more)] === [2022-11-22 01:41:14,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:14,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1615194531, now seen corresponding path program 1 times [2022-11-22 01:41:14,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:14,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897203447] [2022-11-22 01:41:14,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:14,694 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 [2022-11-22 01:41:14,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:14,695 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:16,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 01:41:16,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-22 01:41:17,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:17,497 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:17,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897203447] [2022-11-22 01:41:17,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897203447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:17,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:17,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 01:41:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160739441] [2022-11-22 01:41:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:17,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 01:41:17,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:17,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 01:41:17,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:41:17,500 INFO L87 Difference]: Start difference. First operand 2763 states and 3694 transitions. Second operand has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-22 01:41:25,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:25,627 INFO L93 Difference]: Finished difference Result 6060 states and 8166 transitions. [2022-11-22 01:41:25,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:41:25,628 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 209 [2022-11-22 01:41:25,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:25,639 INFO L225 Difference]: With dead ends: 6060 [2022-11-22 01:41:25,639 INFO L226 Difference]: Without dead ends: 3317 [2022-11-22 01:41:25,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2022-11-22 01:41:25,654 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 1604 mSDsluCounter, 32885 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 35605 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:25,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 35605 Invalid, 1596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 01:41:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2022-11-22 01:41:26,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 2790. [2022-11-22 01:41:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 1843 states have (on average 1.2110689093868692) internal successors, (2232), 1913 states have internal predecessors, (2232), 750 states have call successors, (750), 189 states have call predecessors, (750), 188 states have return successors, (748), 744 states have call predecessors, (748), 748 states have call successors, (748) [2022-11-22 01:41:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3730 transitions. [2022-11-22 01:41:26,301 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3730 transitions. Word has length 209 [2022-11-22 01:41:26,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:26,301 INFO L495 AbstractCegarLoop]: Abstraction has 2790 states and 3730 transitions. [2022-11-22 01:41:26,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-22 01:41:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3730 transitions. [2022-11-22 01:41:26,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-22 01:41:26,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:26,304 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] [2022-11-22 01:41:26,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:26,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:26,528 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 27 more)] === [2022-11-22 01:41:26,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1924621979, now seen corresponding path program 1 times [2022-11-22 01:41:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:26,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536690197] [2022-11-22 01:41:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:26,530 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 [2022-11-22 01:41:26,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:26,531 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:26,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:27,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:41:27,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:29,581 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:41:29,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:29,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:29,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536690197] [2022-11-22 01:41:29,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536690197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:29,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:29,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:41:29,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440526653] [2022-11-22 01:41:29,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:29,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:41:29,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:29,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:41:29,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:41:29,584 INFO L87 Difference]: Start difference. First operand 2790 states and 3730 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-11-22 01:41:30,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:30,338 INFO L93 Difference]: Finished difference Result 2790 states and 3730 transitions. [2022-11-22 01:41:30,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:41:30,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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 174 [2022-11-22 01:41:30,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:30,345 INFO L225 Difference]: With dead ends: 2790 [2022-11-22 01:41:30,345 INFO L226 Difference]: Without dead ends: 2788 [2022-11-22 01:41:30,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:30,348 INFO L413 NwaCegarLoop]: 2206 mSDtfsCounter, 2049 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 4410 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 [2022-11-22 01:41:30,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2051 Valid, 4410 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:41:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2022-11-22 01:41:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2788. [2022-11-22 01:41:30,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 1842 states have (on average 1.210640608034745) internal successors, (2230), 1911 states have internal predecessors, (2230), 750 states have call successors, (750), 189 states have call predecessors, (750), 188 states have return successors, (748), 744 states have call predecessors, (748), 748 states have call successors, (748) [2022-11-22 01:41:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3728 transitions. [2022-11-22 01:41:30,983 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3728 transitions. Word has length 174 [2022-11-22 01:41:30,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:30,983 INFO L495 AbstractCegarLoop]: Abstraction has 2788 states and 3728 transitions. [2022-11-22 01:41:30,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-11-22 01:41:30,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3728 transitions. [2022-11-22 01:41:30,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-22 01:41:30,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:30,986 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] [2022-11-22 01:41:31,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:31,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:31,202 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 27 more)] === [2022-11-22 01:41:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash -611636173, now seen corresponding path program 1 times [2022-11-22 01:41:31,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:31,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512281382] [2022-11-22 01:41:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:31,204 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 [2022-11-22 01:41:31,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:31,205 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:31,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:32,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:41:32,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 01:41:34,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:34,234 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:34,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512281382] [2022-11-22 01:41:34,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512281382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:34,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:34,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:41:34,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871511020] [2022-11-22 01:41:34,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:34,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:41:34,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:34,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:41:34,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:41:34,237 INFO L87 Difference]: Start difference. First operand 2788 states and 3728 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 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) [2022-11-22 01:41:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:34,814 INFO L93 Difference]: Finished difference Result 2788 states and 3728 transitions. [2022-11-22 01:41:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:41:34,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 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 180 [2022-11-22 01:41:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:34,822 INFO L225 Difference]: With dead ends: 2788 [2022-11-22 01:41:34,822 INFO L226 Difference]: Without dead ends: 2595 [2022-11-22 01:41:34,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:34,825 INFO L413 NwaCegarLoop]: 2205 mSDtfsCounter, 2040 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 4410 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 [2022-11-22 01:41:34,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 4410 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:41:34,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2022-11-22 01:41:35,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2595. [2022-11-22 01:41:35,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 1724 states have (on average 1.2215777262180973) internal successors, (2106), 1790 states have internal predecessors, (2106), 695 states have call successors, (695), 169 states have call predecessors, (695), 169 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2022-11-22 01:41:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3496 transitions. [2022-11-22 01:41:35,441 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3496 transitions. Word has length 180 [2022-11-22 01:41:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:35,441 INFO L495 AbstractCegarLoop]: Abstraction has 2595 states and 3496 transitions. [2022-11-22 01:41:35,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 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) [2022-11-22 01:41:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3496 transitions. [2022-11-22 01:41:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-22 01:41:35,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:35,444 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:35,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:35,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:35,653 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 27 more)] === [2022-11-22 01:41:35,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash 114494803, now seen corresponding path program 1 times [2022-11-22 01:41:35,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:35,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145011137] [2022-11-22 01:41:35,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:35,655 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 [2022-11-22 01:41:35,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:35,656 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:35,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:37,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:41:37,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-11-22 01:41:37,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:37,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:37,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145011137] [2022-11-22 01:41:37,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145011137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:37,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:37,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:41:37,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408483558] [2022-11-22 01:41:37,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:37,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:41:37,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:37,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:41:37,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:41:37,696 INFO L87 Difference]: Start difference. First operand 2595 states and 3496 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-22 01:41:40,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:41:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:41,290 INFO L93 Difference]: Finished difference Result 5243 states and 7065 transitions. [2022-11-22 01:41:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:41:41,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 280 [2022-11-22 01:41:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:41,296 INFO L225 Difference]: With dead ends: 5243 [2022-11-22 01:41:41,296 INFO L226 Difference]: Without dead ends: 2667 [2022-11-22 01:41:41,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:41:41,302 INFO L413 NwaCegarLoop]: 2041 mSDtfsCounter, 116 mSDsluCounter, 5996 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8037 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:41,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8037 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-22 01:41:41,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2022-11-22 01:41:42,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2598. [2022-11-22 01:41:42,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 1727 states have (on average 1.2211928199189346) internal successors, (2109), 1793 states have internal predecessors, (2109), 695 states have call successors, (695), 169 states have call predecessors, (695), 169 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2022-11-22 01:41:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3499 transitions. [2022-11-22 01:41:42,045 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3499 transitions. Word has length 280 [2022-11-22 01:41:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:42,046 INFO L495 AbstractCegarLoop]: Abstraction has 2598 states and 3499 transitions. [2022-11-22 01:41:42,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-22 01:41:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3499 transitions. [2022-11-22 01:41:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-22 01:41:42,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:42,048 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:42,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:42,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:42,249 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 27 more)] === [2022-11-22 01:41:42,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1124311169, now seen corresponding path program 1 times [2022-11-22 01:41:42,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:42,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842447746] [2022-11-22 01:41:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:42,251 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 [2022-11-22 01:41:42,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:42,253 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:42,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:44,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 01:41:44,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:45,603 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-22 01:41:45,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:45,604 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:45,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842447746] [2022-11-22 01:41:45,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842447746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:45,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:45,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 01:41:45,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696562449] [2022-11-22 01:41:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 01:41:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 01:41:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:41:45,606 INFO L87 Difference]: Start difference. First operand 2598 states and 3499 transitions. Second operand has 15 states, 14 states have (on average 9.357142857142858) internal successors, (131), 14 states have internal predecessors, (131), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2022-11-22 01:41:53,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:53,592 INFO L93 Difference]: Finished difference Result 6059 states and 8226 transitions. [2022-11-22 01:41:53,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:41:53,595 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.357142857142858) internal successors, (131), 14 states have internal predecessors, (131), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) Word has length 301 [2022-11-22 01:41:53,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:53,608 INFO L225 Difference]: With dead ends: 6059 [2022-11-22 01:41:53,608 INFO L226 Difference]: Without dead ends: 3479 [2022-11-22 01:41:53,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:41:53,616 INFO L413 NwaCegarLoop]: 2399 mSDtfsCounter, 1285 mSDsluCounter, 29391 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 31790 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:53,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 31790 Invalid, 1144 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [443 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:41:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2022-11-22 01:41:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 2593. [2022-11-22 01:41:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 1725 states have (on average 1.2214492753623187) internal successors, (2107), 1791 states have internal predecessors, (2107), 692 states have call successors, (692), 169 states have call predecessors, (692), 169 states have return successors, (692), 688 states have call predecessors, (692), 692 states have call successors, (692) [2022-11-22 01:41:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3491 transitions. [2022-11-22 01:41:54,208 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3491 transitions. Word has length 301 [2022-11-22 01:41:54,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:54,209 INFO L495 AbstractCegarLoop]: Abstraction has 2593 states and 3491 transitions. [2022-11-22 01:41:54,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.357142857142858) internal successors, (131), 14 states have internal predecessors, (131), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2022-11-22 01:41:54,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3491 transitions. [2022-11-22 01:41:54,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-11-22 01:41:54,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:54,211 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:54,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:54,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:54,411 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:41:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash -981104860, now seen corresponding path program 1 times [2022-11-22 01:41:54,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:54,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613724734] [2022-11-22 01:41:54,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:54,413 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 [2022-11-22 01:41:54,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:54,414 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:54,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:41:56,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 2049 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:41:56,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-11-22 01:41:56,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:41:56,999 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:41:56,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613724734] [2022-11-22 01:41:56,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613724734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:41:56,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:41:57,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:41:57,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852642590] [2022-11-22 01:41:57,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:41:57,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:41:57,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:41:57,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:41:57,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:41:57,001 INFO L87 Difference]: Start difference. First operand 2593 states and 3491 transitions. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 01:41:58,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:41:58,006 INFO L93 Difference]: Finished difference Result 5275 states and 7108 transitions. [2022-11-22 01:41:58,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:41:58,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 299 [2022-11-22 01:41:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:41:58,017 INFO L225 Difference]: With dead ends: 5275 [2022-11-22 01:41:58,017 INFO L226 Difference]: Without dead ends: 2701 [2022-11-22 01:41:58,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:41:58,027 INFO L413 NwaCegarLoop]: 2078 mSDtfsCounter, 95 mSDsluCounter, 8201 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 10279 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:41:58,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 10279 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:41:58,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-11-22 01:41:58,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2598. [2022-11-22 01:41:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 1729 states have (on average 1.220936957779063) internal successors, (2111), 1795 states have internal predecessors, (2111), 692 states have call successors, (692), 169 states have call predecessors, (692), 170 states have return successors, (695), 689 states have call predecessors, (695), 692 states have call successors, (695) [2022-11-22 01:41:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3498 transitions. [2022-11-22 01:41:58,948 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3498 transitions. Word has length 299 [2022-11-22 01:41:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:41:58,949 INFO L495 AbstractCegarLoop]: Abstraction has 2598 states and 3498 transitions. [2022-11-22 01:41:58,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-22 01:41:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3498 transitions. [2022-11-22 01:41:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-11-22 01:41:58,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:41:58,952 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:41:59,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:41:59,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:41:59,167 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:41:59,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:41:59,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1265704346, now seen corresponding path program 1 times [2022-11-22 01:41:59,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:41:59,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296797459] [2022-11-22 01:41:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:41:59,170 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 [2022-11-22 01:41:59,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:41:59,175 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:41:59,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:01,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 2083 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:42:01,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-22 01:42:01,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:42:01,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:42:01,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296797459] [2022-11-22 01:42:01,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296797459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:01,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:01,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:42:01,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951224512] [2022-11-22 01:42:01,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:01,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:01,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:42:01,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:01,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:01,676 INFO L87 Difference]: Start difference. First operand 2598 states and 3498 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-22 01:42:02,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:02,306 INFO L93 Difference]: Finished difference Result 5190 states and 6992 transitions. [2022-11-22 01:42:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:02,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 315 [2022-11-22 01:42:02,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:02,318 INFO L225 Difference]: With dead ends: 5190 [2022-11-22 01:42:02,318 INFO L226 Difference]: Without dead ends: 2611 [2022-11-22 01:42:02,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:02,327 INFO L413 NwaCegarLoop]: 1981 mSDtfsCounter, 10 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:02,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3954 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:42:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2022-11-22 01:42:02,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2599. [2022-11-22 01:42:02,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1730 states have (on average 1.2208092485549134) internal successors, (2112), 1796 states have internal predecessors, (2112), 692 states have call successors, (692), 169 states have call predecessors, (692), 170 states have return successors, (695), 689 states have call predecessors, (695), 692 states have call successors, (695) [2022-11-22 01:42:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3499 transitions. [2022-11-22 01:42:02,952 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3499 transitions. Word has length 315 [2022-11-22 01:42:02,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:02,953 INFO L495 AbstractCegarLoop]: Abstraction has 2599 states and 3499 transitions. [2022-11-22 01:42:02,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-22 01:42:02,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3499 transitions. [2022-11-22 01:42:02,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-22 01:42:02,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:02,958 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:02,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:03,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:42:03,167 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:42:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:03,168 INFO L85 PathProgramCache]: Analyzing trace with hash 695268284, now seen corresponding path program 1 times [2022-11-22 01:42:03,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:42:03,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215273246] [2022-11-22 01:42:03,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:03,169 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 [2022-11-22 01:42:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:42:03,171 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:42:03,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:05,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 2101 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:42:05,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-22 01:42:05,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:42:05,628 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:42:05,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215273246] [2022-11-22 01:42:05,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215273246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:05,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:05,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:42:05,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575047766] [2022-11-22 01:42:05,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:05,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:42:05,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:42:05,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:42:05,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:42:05,631 INFO L87 Difference]: Start difference. First operand 2599 states and 3499 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 01:42:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:06,233 INFO L93 Difference]: Finished difference Result 5183 states and 6980 transitions. [2022-11-22 01:42:06,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:42:06,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 325 [2022-11-22 01:42:06,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:06,241 INFO L225 Difference]: With dead ends: 5183 [2022-11-22 01:42:06,241 INFO L226 Difference]: Without dead ends: 2603 [2022-11-22 01:42:06,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:42:06,249 INFO L413 NwaCegarLoop]: 1976 mSDtfsCounter, 1 mSDsluCounter, 3945 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:06,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5921 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:42:06,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2022-11-22 01:42:06,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2601. [2022-11-22 01:42:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 1732 states have (on average 1.220554272517321) internal successors, (2114), 1797 states have internal predecessors, (2114), 692 states have call successors, (692), 169 states have call predecessors, (692), 170 states have return successors, (695), 689 states have call predecessors, (695), 692 states have call successors, (695) [2022-11-22 01:42:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 3501 transitions. [2022-11-22 01:42:06,865 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 3501 transitions. Word has length 325 [2022-11-22 01:42:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:06,866 INFO L495 AbstractCegarLoop]: Abstraction has 2601 states and 3501 transitions. [2022-11-22 01:42:06,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 01:42:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 3501 transitions. [2022-11-22 01:42:06,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-11-22 01:42:06,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:06,868 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:06,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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)] Ended with exit code 0 [2022-11-22 01:42:07,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:42:07,069 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:42:07,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1681044289, now seen corresponding path program 1 times [2022-11-22 01:42:07,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:42:07,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989908650] [2022-11-22 01:42:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:07,071 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 [2022-11-22 01:42:07,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:42:07,072 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:42:07,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:09,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:42:09,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-22 01:42:09,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-11-22 01:42:10,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:42:10,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989908650] [2022-11-22 01:42:10,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989908650] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:10,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [218253786] [2022-11-22 01:42:10,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:10,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:42:10,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:42:10,302 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:42:10,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2022-11-22 01:42:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:12,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:42:12,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-22 01:42:12,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-11-22 01:42:12,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [218253786] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:12,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973116996] [2022-11-22 01:42:12,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:12,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:42:12,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:12,719 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:42:12,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-22 01:42:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:14,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:42:14,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-11-22 01:42:14,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-11-22 01:42:14,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973116996] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:14,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:42:14,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2022-11-22 01:42:14,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909476538] [2022-11-22 01:42:14,888 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:42:14,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:42:14,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:42:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:42:14,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:42:14,890 INFO L87 Difference]: Start difference. First operand 2601 states and 3501 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 4 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2022-11-22 01:42:15,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:15,913 INFO L93 Difference]: Finished difference Result 5192 states and 6993 transitions. [2022-11-22 01:42:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:42:15,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 4 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) Word has length 331 [2022-11-22 01:42:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:15,920 INFO L225 Difference]: With dead ends: 5192 [2022-11-22 01:42:15,921 INFO L226 Difference]: Without dead ends: 2610 [2022-11-22 01:42:15,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1983 GetRequests, 1974 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:42:15,928 INFO L413 NwaCegarLoop]: 1978 mSDtfsCounter, 7 mSDsluCounter, 5918 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7896 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:15,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7896 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:42:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2022-11-22 01:42:16,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 2610. [2022-11-22 01:42:16,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 1738 states have (on average 1.2197928653624857) internal successors, (2120), 1803 states have internal predecessors, (2120), 695 states have call successors, (695), 169 states have call predecessors, (695), 170 states have return successors, (698), 692 states have call predecessors, (698), 695 states have call successors, (698) [2022-11-22 01:42:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3513 transitions. [2022-11-22 01:42:16,512 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3513 transitions. Word has length 331 [2022-11-22 01:42:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:16,512 INFO L495 AbstractCegarLoop]: Abstraction has 2610 states and 3513 transitions. [2022-11-22 01:42:16,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 4 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2022-11-22 01:42:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3513 transitions. [2022-11-22 01:42:16,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-11-22 01:42:16,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:16,515 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:16,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:16,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:16,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:17,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:42:17,128 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:42:17,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:17,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1542767176, now seen corresponding path program 2 times [2022-11-22 01:42:17,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:42:17,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147983307] [2022-11-22 01:42:17,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:42:17,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:42:17,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:42:17,130 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:42:17,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:20,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:42:20,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:42:20,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 2137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:42:20,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 117 proven. 26 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-11-22 01:42:20,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-11-22 01:42:21,736 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:42:21,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147983307] [2022-11-22 01:42:21,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147983307] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:21,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [475245648] [2022-11-22 01:42:21,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:42:21,737 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:42:21,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:42:21,738 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:42:21,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-11-22 01:42:27,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:42:27,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:42:27,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 2137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:42:27,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 117 proven. 26 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-11-22 01:42:28,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-11-22 01:42:28,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [475245648] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:28,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952327084] [2022-11-22 01:42:28,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:42:28,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:42:28,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:28,474 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:42:28,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-22 01:42:30,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:42:30,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:42:30,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 2137 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:42:30,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2022-11-22 01:42:30,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:42:30,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952327084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:30,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:42:30,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8, 8, 8] total 17 [2022-11-22 01:42:30,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766652387] [2022-11-22 01:42:30,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:30,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:42:30,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:42:30,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:42:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:42:30,937 INFO L87 Difference]: Start difference. First operand 2610 states and 3513 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 01:42:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:32,466 INFO L93 Difference]: Finished difference Result 5351 states and 7206 transitions. [2022-11-22 01:42:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:42:32,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 349 [2022-11-22 01:42:32,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:32,477 INFO L225 Difference]: With dead ends: 5351 [2022-11-22 01:42:32,477 INFO L226 Difference]: Without dead ends: 2760 [2022-11-22 01:42:32,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1744 GetRequests, 1727 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:42:32,484 INFO L413 NwaCegarLoop]: 2120 mSDtfsCounter, 196 mSDsluCounter, 6084 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 8204 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:32,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 8204 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:42:32,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-22 01:42:33,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2613. [2022-11-22 01:42:33,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 1741 states have (on average 1.2194141298104537) internal successors, (2123), 1806 states have internal predecessors, (2123), 695 states have call successors, (695), 169 states have call predecessors, (695), 170 states have return successors, (698), 692 states have call predecessors, (698), 695 states have call successors, (698) [2022-11-22 01:42:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 3516 transitions. [2022-11-22 01:42:33,118 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 3516 transitions. Word has length 349 [2022-11-22 01:42:33,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:33,119 INFO L495 AbstractCegarLoop]: Abstraction has 2613 states and 3516 transitions. [2022-11-22 01:42:33,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-22 01:42:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 3516 transitions. [2022-11-22 01:42:33,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-11-22 01:42:33,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:33,122 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:33,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:33,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:33,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:33,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:42:33,739 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:42:33,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:33,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1554952197, now seen corresponding path program 1 times [2022-11-22 01:42:33,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:42:33,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077921823] [2022-11-22 01:42:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:33,742 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 [2022-11-22 01:42:33,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:42:33,743 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:42:33,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:36,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:42:36,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 126 proven. 26 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-11-22 01:42:36,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2022-11-22 01:42:37,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:42:37,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077921823] [2022-11-22 01:42:37,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077921823] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:37,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [315342741] [2022-11-22 01:42:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:37,974 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:42:37,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:42:37,977 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:42:37,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2022-11-22 01:42:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:40,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:42:40,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 126 proven. 26 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-11-22 01:42:40,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2022-11-22 01:42:41,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [315342741] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:41,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22105680] [2022-11-22 01:42:41,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:41,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:42:41,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:41,075 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:42:41,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-22 01:42:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:43,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:42:43,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-11-22 01:42:43,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:42:43,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22105680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:43,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:42:43,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8, 8, 8] total 17 [2022-11-22 01:42:43,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863072984] [2022-11-22 01:42:43,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:43,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:42:43,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:42:43,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:42:43,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:42:43,688 INFO L87 Difference]: Start difference. First operand 2613 states and 3516 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:42:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:44,470 INFO L93 Difference]: Finished difference Result 5301 states and 7141 transitions. [2022-11-22 01:42:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:42:44,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 390 [2022-11-22 01:42:44,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:44,482 INFO L225 Difference]: With dead ends: 5301 [2022-11-22 01:42:44,482 INFO L226 Difference]: Without dead ends: 2707 [2022-11-22 01:42:44,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1945 GetRequests, 1930 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:42:44,489 INFO L413 NwaCegarLoop]: 2083 mSDtfsCounter, 68 mSDsluCounter, 6150 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 8233 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:44,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 8233 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:42:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2022-11-22 01:42:45,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 2617. [2022-11-22 01:42:45,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 1744 states have (on average 1.2190366972477065) internal successors, (2126), 1809 states have internal predecessors, (2126), 695 states have call successors, (695), 169 states have call predecessors, (695), 171 states have return successors, (703), 693 states have call predecessors, (703), 695 states have call successors, (703) [2022-11-22 01:42:45,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 3524 transitions. [2022-11-22 01:42:45,161 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 3524 transitions. Word has length 390 [2022-11-22 01:42:45,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:45,162 INFO L495 AbstractCegarLoop]: Abstraction has 2617 states and 3524 transitions. [2022-11-22 01:42:45,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-22 01:42:45,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 3524 transitions. [2022-11-22 01:42:45,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-11-22 01:42:45,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:45,165 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:45,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:45,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:45,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:45,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:42:45,767 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:42:45,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:45,768 INFO L85 PathProgramCache]: Analyzing trace with hash 773660529, now seen corresponding path program 1 times [2022-11-22 01:42:45,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:42:45,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457831856] [2022-11-22 01:42:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:45,770 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 [2022-11-22 01:42:45,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:42:45,771 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:42:45,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:42:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:48,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:42:48,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 132 proven. 26 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-22 01:42:49,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2022-11-22 01:42:50,066 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:42:50,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457831856] [2022-11-22 01:42:50,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457831856] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:50,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1111866589] [2022-11-22 01:42:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:50,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:42:50,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:42:50,068 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:42:50,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2022-11-22 01:42:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:52,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:42:52,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 132 proven. 26 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-22 01:42:52,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:42:53,265 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2022-11-22 01:42:53,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1111866589] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:42:53,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262643332] [2022-11-22 01:42:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:53,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:42:53,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:53,272 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:42:53,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-11-22 01:42:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:55,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:42:55,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:42:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-22 01:42:56,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:42:56,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262643332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:56,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:42:56,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 8, 8, 8] total 19 [2022-11-22 01:42:56,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107021557] [2022-11-22 01:42:56,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:56,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:42:56,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:42:56,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:42:56,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:42:56,240 INFO L87 Difference]: Start difference. First operand 2617 states and 3524 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-22 01:42:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:58,923 INFO L93 Difference]: Finished difference Result 5659 states and 7653 transitions. [2022-11-22 01:42:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:42:58,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 419 [2022-11-22 01:42:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:58,935 INFO L225 Difference]: With dead ends: 5659 [2022-11-22 01:42:58,935 INFO L226 Difference]: Without dead ends: 3061 [2022-11-22 01:42:58,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2099 GetRequests, 2077 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:42:58,942 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 832 mSDsluCounter, 11202 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 13537 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:58,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 13537 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:42:58,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2022-11-22 01:42:59,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 2621. [2022-11-22 01:42:59,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 1748 states have (on average 1.2185354691075514) internal successors, (2130), 1812 states have internal predecessors, (2130), 695 states have call successors, (695), 169 states have call predecessors, (695), 171 states have return successors, (703), 694 states have call predecessors, (703), 695 states have call successors, (703) [2022-11-22 01:42:59,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 3528 transitions. [2022-11-22 01:42:59,716 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 3528 transitions. Word has length 419 [2022-11-22 01:42:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:59,716 INFO L495 AbstractCegarLoop]: Abstraction has 2621 states and 3528 transitions. [2022-11-22 01:42:59,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-22 01:42:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 3528 transitions. [2022-11-22 01:42:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-11-22 01:42:59,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:59,720 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:59,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2022-11-22 01:42:59,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:00,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:00,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:43:00,321 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:43:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:00,322 INFO L85 PathProgramCache]: Analyzing trace with hash 906327380, now seen corresponding path program 1 times [2022-11-22 01:43:00,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:43:00,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276749241] [2022-11-22 01:43:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:00,324 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 [2022-11-22 01:43:00,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:43:00,325 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:43:00,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:03,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:43:03,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:03,932 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 135 proven. 26 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-22 01:43:03,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2022-11-22 01:43:04,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:43:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276749241] [2022-11-22 01:43:04,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276749241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1443618406] [2022-11-22 01:43:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:04,964 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:43:04,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:43:04,965 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:43:04,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2022-11-22 01:43:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:07,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:43:07,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 135 proven. 26 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-22 01:43:07,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2022-11-22 01:43:08,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1443618406] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:08,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559344010] [2022-11-22 01:43:08,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:08,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:08,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:08,365 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:08,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-11-22 01:43:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:10,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:43:10,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2022-11-22 01:43:10,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:43:10,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559344010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:10,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:43:10,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8, 8, 8] total 15 [2022-11-22 01:43:10,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154712404] [2022-11-22 01:43:10,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:10,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:43:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:43:10,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:43:10,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:43:10,864 INFO L87 Difference]: Start difference. First operand 2621 states and 3528 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-22 01:43:11,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:11,715 INFO L93 Difference]: Finished difference Result 5713 states and 7729 transitions. [2022-11-22 01:43:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:43:11,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 445 [2022-11-22 01:43:11,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:11,727 INFO L225 Difference]: With dead ends: 5713 [2022-11-22 01:43:11,727 INFO L226 Difference]: Without dead ends: 3111 [2022-11-22 01:43:11,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2220 GetRequests, 2207 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:43:11,736 INFO L413 NwaCegarLoop]: 2253 mSDtfsCounter, 271 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 4271 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:11,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 4271 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:43:11,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2022-11-22 01:43:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2622. [2022-11-22 01:43:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 1749 states have (on average 1.2184105202973128) internal successors, (2131), 1813 states have internal predecessors, (2131), 695 states have call successors, (695), 169 states have call predecessors, (695), 171 states have return successors, (703), 694 states have call predecessors, (703), 695 states have call successors, (703) [2022-11-22 01:43:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3529 transitions. [2022-11-22 01:43:12,509 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3529 transitions. Word has length 445 [2022-11-22 01:43:12,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:12,510 INFO L495 AbstractCegarLoop]: Abstraction has 2622 states and 3529 transitions. [2022-11-22 01:43:12,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-22 01:43:12,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3529 transitions. [2022-11-22 01:43:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2022-11-22 01:43:12,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:12,514 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 13, 13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 8, 8, 7, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:12,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:12,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:12,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2022-11-22 01:43:13,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:13,115 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:43:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:13,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2057346859, now seen corresponding path program 1 times [2022-11-22 01:43:13,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:43:13,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723385364] [2022-11-22 01:43:13,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:13,118 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 [2022-11-22 01:43:13,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:43:13,119 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:43:13,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:16,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 3218 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:43:16,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 269 proven. 26 refuted. 0 times theorem prover too weak. 1169 trivial. 0 not checked. [2022-11-22 01:43:17,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 1437 trivial. 0 not checked. [2022-11-22 01:43:18,623 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:43:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723385364] [2022-11-22 01:43:18,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723385364] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [124649265] [2022-11-22 01:43:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:18,624 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:43:18,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:43:18,625 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:43:18,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2022-11-22 01:43:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:21,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 3218 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:43:21,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 269 proven. 26 refuted. 0 times theorem prover too weak. 1169 trivial. 0 not checked. [2022-11-22 01:43:21,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 1437 trivial. 0 not checked. [2022-11-22 01:43:22,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [124649265] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:22,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297080966] [2022-11-22 01:43:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:22,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:22,723 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:22,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2022-11-22 01:43:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:25,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 3218 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:43:25,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1365 trivial. 0 not checked. [2022-11-22 01:43:25,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:43:25,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297080966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:25,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:43:25,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8] total 18 [2022-11-22 01:43:25,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657688931] [2022-11-22 01:43:25,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:25,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:43:25,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:43:25,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:43:25,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:43:25,996 INFO L87 Difference]: Start difference. First operand 2622 states and 3529 transitions. Second operand has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-22 01:43:27,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:28,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:43:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:33,418 INFO L93 Difference]: Finished difference Result 6201 states and 8423 transitions. [2022-11-22 01:43:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:43:33,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 639 [2022-11-22 01:43:33,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:33,445 INFO L225 Difference]: With dead ends: 6201 [2022-11-22 01:43:33,445 INFO L226 Difference]: Without dead ends: 3598 [2022-11-22 01:43:33,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3195 GetRequests, 3176 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:43:33,454 INFO L413 NwaCegarLoop]: 2599 mSDtfsCounter, 1074 mSDsluCounter, 8810 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 11409 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:33,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 11409 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 01:43:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2022-11-22 01:43:34,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 2628. [2022-11-22 01:43:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 1754 states have (on average 1.218358038768529) internal successors, (2137), 1818 states have internal predecessors, (2137), 696 states have call successors, (696), 169 states have call predecessors, (696), 171 states have return successors, (704), 695 states have call predecessors, (704), 696 states have call successors, (704) [2022-11-22 01:43:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 3537 transitions. [2022-11-22 01:43:34,140 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 3537 transitions. Word has length 639 [2022-11-22 01:43:34,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:34,141 INFO L495 AbstractCegarLoop]: Abstraction has 2628 states and 3537 transitions. [2022-11-22 01:43:34,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.0) internal successors, (210), 6 states have internal predecessors, (210), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-22 01:43:34,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 3537 transitions. [2022-11-22 01:43:34,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2022-11-22 01:43:34,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:34,147 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 13, 13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 8, 8, 7, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:34,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:34,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:34,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:34,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:43:34,748 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:43:34,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:34,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1690896272, now seen corresponding path program 1 times [2022-11-22 01:43:34,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:43:34,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411603270] [2022-11-22 01:43:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:34,751 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 [2022-11-22 01:43:34,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:43:34,752 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:43:34,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:38,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:43:38,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 269 proven. 26 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-11-22 01:43:38,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 1438 trivial. 0 not checked. [2022-11-22 01:43:40,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:43:40,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411603270] [2022-11-22 01:43:40,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411603270] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:40,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1457923303] [2022-11-22 01:43:40,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:40,250 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:43:40,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:43:40,251 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:43:40,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2022-11-22 01:43:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:43,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:43:43,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 269 proven. 26 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-11-22 01:43:43,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 1438 trivial. 0 not checked. [2022-11-22 01:43:44,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1457923303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:44,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266679723] [2022-11-22 01:43:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:44,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:44,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:44,431 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:44,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2022-11-22 01:43:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:47,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:43:47,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2022-11-22 01:43:47,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:43:47,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266679723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:43:47,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:43:47,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8, 8, 8] total 15 [2022-11-22 01:43:47,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181081962] [2022-11-22 01:43:47,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:43:47,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:43:47,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:43:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:43:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:43:47,573 INFO L87 Difference]: Start difference. First operand 2628 states and 3537 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-11-22 01:43:48,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:43:48,310 INFO L93 Difference]: Finished difference Result 5244 states and 7062 transitions. [2022-11-22 01:43:48,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:43:48,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 640 [2022-11-22 01:43:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:43:48,322 INFO L225 Difference]: With dead ends: 5244 [2022-11-22 01:43:48,322 INFO L226 Difference]: Without dead ends: 2635 [2022-11-22 01:43:48,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3195 GetRequests, 3182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:43:48,330 INFO L413 NwaCegarLoop]: 1974 mSDtfsCounter, 6 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3943 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:43:48,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3943 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:43:48,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2022-11-22 01:43:48,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2629. [2022-11-22 01:43:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 1755 states have (on average 1.2182336182336182) internal successors, (2138), 1819 states have internal predecessors, (2138), 696 states have call successors, (696), 169 states have call predecessors, (696), 171 states have return successors, (704), 695 states have call predecessors, (704), 696 states have call successors, (704) [2022-11-22 01:43:48,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 3538 transitions. [2022-11-22 01:43:48,969 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 3538 transitions. Word has length 640 [2022-11-22 01:43:48,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:43:48,969 INFO L495 AbstractCegarLoop]: Abstraction has 2629 states and 3538 transitions. [2022-11-22 01:43:48,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-11-22 01:43:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 3538 transitions. [2022-11-22 01:43:48,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2022-11-22 01:43:48,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:48,974 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 13, 13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 8, 8, 7, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:49,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:49,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:49,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2022-11-22 01:43:49,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:49,575 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:43:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:49,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1110052934, now seen corresponding path program 1 times [2022-11-22 01:43:49,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:43:49,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065659320] [2022-11-22 01:43:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:49,578 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 [2022-11-22 01:43:49,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:43:49,579 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:43:49,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:43:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:53,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:43:53,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 269 proven. 26 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2022-11-22 01:43:53,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 1439 trivial. 0 not checked. [2022-11-22 01:43:55,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:43:55,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065659320] [2022-11-22 01:43:55,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065659320] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:55,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2012590463] [2022-11-22 01:43:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:55,324 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:43:55,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:43:55,325 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:43:55,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2022-11-22 01:43:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:58,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:43:58,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:58,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 269 proven. 26 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2022-11-22 01:43:58,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 1439 trivial. 0 not checked. [2022-11-22 01:43:59,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2012590463] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:59,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816902351] [2022-11-22 01:43:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:59,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:59,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:59,776 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:59,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2022-11-22 01:44:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:02,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:44:02,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:44:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 1367 trivial. 0 not checked. [2022-11-22 01:44:03,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:44:03,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816902351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:03,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:44:03,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8, 8, 8] total 15 [2022-11-22 01:44:03,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958361984] [2022-11-22 01:44:03,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:03,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:44:03,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:44:03,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:44:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:44:03,052 INFO L87 Difference]: Start difference. First operand 2629 states and 3538 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-11-22 01:44:03,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:03,806 INFO L93 Difference]: Finished difference Result 5246 states and 7061 transitions. [2022-11-22 01:44:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:44:03,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 644 [2022-11-22 01:44:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:03,814 INFO L225 Difference]: With dead ends: 5246 [2022-11-22 01:44:03,814 INFO L226 Difference]: Without dead ends: 2636 [2022-11-22 01:44:03,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3215 GetRequests, 3202 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:44:03,819 INFO L413 NwaCegarLoop]: 1973 mSDtfsCounter, 3 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3938 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:03,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3938 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:44:03,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2022-11-22 01:44:04,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2631. [2022-11-22 01:44:04,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 1757 states have (on average 1.217985202048947) internal successors, (2140), 1821 states have internal predecessors, (2140), 696 states have call successors, (696), 169 states have call predecessors, (696), 171 states have return successors, (704), 695 states have call predecessors, (704), 696 states have call successors, (704) [2022-11-22 01:44:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3540 transitions. [2022-11-22 01:44:04,445 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3540 transitions. Word has length 644 [2022-11-22 01:44:04,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:04,446 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3540 transitions. [2022-11-22 01:44:04,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-11-22 01:44:04,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3540 transitions. [2022-11-22 01:44:04,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2022-11-22 01:44:04,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:04,451 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 13, 13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:04,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2022-11-22 01:44:04,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2022-11-22 01:44:04,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:44:05,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:44:05,052 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:44:05,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:05,053 INFO L85 PathProgramCache]: Analyzing trace with hash -229697522, now seen corresponding path program 1 times [2022-11-22 01:44:05,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:44:05,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296510904] [2022-11-22 01:44:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:05,055 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 [2022-11-22 01:44:05,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:44:05,056 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:44:05,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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 [2022-11-22 01:44:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:08,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:44:08,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:44:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 411 proven. 26 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-22 01:44:09,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:44:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 1 proven. 100 refuted. 0 times theorem prover too weak. 1743 trivial. 0 not checked. [2022-11-22 01:44:10,894 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:44:10,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296510904] [2022-11-22 01:44:10,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296510904] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:44:10,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1238465797] [2022-11-22 01:44:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:10,895 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:44:10,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:44:10,896 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:44:10,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2022-11-22 01:44:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:14,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:44:14,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:44:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 411 proven. 26 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-22 01:44:14,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:44:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 1 proven. 100 refuted. 0 times theorem prover too weak. 1743 trivial. 0 not checked. [2022-11-22 01:44:15,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1238465797] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:44:15,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83916618] [2022-11-22 01:44:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:15,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:44:15,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:44:15,660 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:44:15,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2022-11-22 01:44:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:18,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 3361 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:44:18,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:44:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 409 proven. 1 refuted. 0 times theorem prover too weak. 1434 trivial. 0 not checked. [2022-11-22 01:44:19,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:44:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1844 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2022-11-22 01:44:20,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83916618] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:44:20,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:44:20,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 4, 4] total 18 [2022-11-22 01:44:20,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879982726] [2022-11-22 01:44:20,244 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:44:20,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 01:44:20,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:44:20,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 01:44:20,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:44:20,245 INFO L87 Difference]: Start difference. First operand 2631 states and 3540 transitions. Second operand has 18 states, 18 states have (on average 18.77777777777778) internal successors, (338), 18 states have internal predecessors, (338), 12 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (144), 12 states have call predecessors, (144), 12 states have call successors, (144) [2022-11-22 01:44:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:30,154 INFO L93 Difference]: Finished difference Result 7218 states and 9881 transitions. [2022-11-22 01:44:30,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:44:30,166 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 18.77777777777778) internal successors, (338), 18 states have internal predecessors, (338), 12 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (144), 12 states have call predecessors, (144), 12 states have call successors, (144) Word has length 708 [2022-11-22 01:44:30,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:30,178 INFO L225 Difference]: With dead ends: 7218 [2022-11-22 01:44:30,178 INFO L226 Difference]: Without dead ends: 4606 [2022-11-22 01:44:30,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4253 GetRequests, 4227 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2022-11-22 01:44:30,188 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 1396 mSDsluCounter, 23719 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 26504 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:30,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 26504 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 01:44:30,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4606 states. [2022-11-22 01:44:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4606 to 2660. [2022-11-22 01:44:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2660 states, 1778 states have (on average 1.2165354330708662) internal successors, (2163), 1842 states have internal predecessors, (2163), 704 states have call successors, (704), 169 states have call predecessors, (704), 171 states have return successors, (712), 703 states have call predecessors, (712), 704 states have call successors, (712) [2022-11-22 01:44:30,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2660 states to 2660 states and 3579 transitions. [2022-11-22 01:44:30,861 INFO L78 Accepts]: Start accepts. Automaton has 2660 states and 3579 transitions. Word has length 708 [2022-11-22 01:44:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:30,862 INFO L495 AbstractCegarLoop]: Abstraction has 2660 states and 3579 transitions. [2022-11-22 01:44:30,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 18.77777777777778) internal successors, (338), 18 states have internal predecessors, (338), 12 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (144), 12 states have call predecessors, (144), 12 states have call successors, (144) [2022-11-22 01:44:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2660 states and 3579 transitions. [2022-11-22 01:44:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 979 [2022-11-22 01:44:30,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:30,870 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 23, 23, 22, 20, 20, 20, 20, 20, 20, 20, 20, 20, 13, 13, 13, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:30,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-22 01:44:31,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2022-11-22 01:44:31,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2022-11-22 01:44:31,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:44:31,471 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:44:31,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:31,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1377222927, now seen corresponding path program 1 times [2022-11-22 01:44:31,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:44:31,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664730652] [2022-11-22 01:44:31,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:31,474 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 [2022-11-22 01:44:31,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:44:31,475 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:44:31,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-22 01:44:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:36,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 4192 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:44:36,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:44:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 5915 backedges. 1476 proven. 1 refuted. 0 times theorem prover too weak. 4438 trivial. 0 not checked. [2022-11-22 01:44:36,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:44:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5915 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 5561 trivial. 0 not checked. [2022-11-22 01:44:38,145 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:44:38,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664730652] [2022-11-22 01:44:38,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664730652] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:44:38,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1930381062] [2022-11-22 01:44:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:44:38,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:44:38,148 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:44:38,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2022-11-22 01:44:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:42,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 4192 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:44:42,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:44:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5915 backedges. 1443 proven. 5 refuted. 0 times theorem prover too weak. 4467 trivial. 0 not checked. [2022-11-22 01:44:42,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:44:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 5915 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5910 trivial. 0 not checked. [2022-11-22 01:44:44,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1930381062] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:44:44,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926571891] [2022-11-22 01:44:44,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:44,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:44:44,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:44:44,561 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:44:44,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2022-11-22 01:44:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:48,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 4192 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:44:48,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:44:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5915 backedges. 1443 proven. 5 refuted. 0 times theorem prover too weak. 4467 trivial. 0 not checked. [2022-11-22 01:44:48,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:44:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5915 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5910 trivial. 0 not checked. [2022-11-22 01:44:49,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926571891] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:44:49,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:44:49,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 7, 7, 7, 7] total 16 [2022-11-22 01:44:49,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973559473] [2022-11-22 01:44:49,533 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:44:49,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:44:49,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:44:49,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:44:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:44:49,536 INFO L87 Difference]: Start difference. First operand 2660 states and 3579 transitions. Second operand has 16 states, 16 states have (on average 21.5) internal successors, (344), 16 states have internal predecessors, (344), 8 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (141), 8 states have call predecessors, (141), 8 states have call successors, (141) [2022-11-22 01:45:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:14,252 INFO L93 Difference]: Finished difference Result 8809 states and 12185 transitions. [2022-11-22 01:45:14,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-22 01:45:14,253 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 21.5) internal successors, (344), 16 states have internal predecessors, (344), 8 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (141), 8 states have call predecessors, (141), 8 states have call successors, (141) Word has length 978 [2022-11-22 01:45:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:14,272 INFO L225 Difference]: With dead ends: 8809 [2022-11-22 01:45:14,272 INFO L226 Difference]: Without dead ends: 6168 [2022-11-22 01:45:14,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5888 GetRequests, 5858 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:45:14,280 INFO L413 NwaCegarLoop]: 3388 mSDtfsCounter, 5593 mSDsluCounter, 24015 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 2198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5776 SdHoareTripleChecker+Valid, 27403 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2198 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:14,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5776 Valid, 27403 Invalid, 4125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2198 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2022-11-22 01:45:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2022-11-22 01:45:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 2775. [2022-11-22 01:45:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 1859 states have (on average 1.2108660570199032) internal successors, (2251), 1923 states have internal predecessors, (2251), 738 states have call successors, (738), 169 states have call predecessors, (738), 171 states have return successors, (746), 737 states have call predecessors, (746), 738 states have call successors, (746) [2022-11-22 01:45:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3735 transitions. [2022-11-22 01:45:15,204 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3735 transitions. Word has length 978 [2022-11-22 01:45:15,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:15,205 INFO L495 AbstractCegarLoop]: Abstraction has 2775 states and 3735 transitions. [2022-11-22 01:45:15,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 21.5) internal successors, (344), 16 states have internal predecessors, (344), 8 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (141), 8 states have call predecessors, (141), 8 states have call successors, (141) [2022-11-22 01:45:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3735 transitions. [2022-11-22 01:45:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1386 [2022-11-22 01:45:15,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:15,220 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 12, 12, 10, 10, 9, 9, 7, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:15,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2022-11-22 01:45:15,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2022-11-22 01:45:15,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-22 01:45:15,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:45:15,821 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:45:15,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:15,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1138800632, now seen corresponding path program 1 times [2022-11-22 01:45:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:45:15,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801395200] [2022-11-22 01:45:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:15,825 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 [2022-11-22 01:45:15,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:45:15,826 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:45:15,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-22 01:45:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:22,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 5659 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:45:22,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:45:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 15374 backedges. 2518 proven. 1 refuted. 0 times theorem prover too weak. 12855 trivial. 0 not checked. [2022-11-22 01:45:22,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:45:24,869 INFO L134 CoverageAnalysis]: Checked inductivity of 15374 backedges. 10 proven. 61 refuted. 0 times theorem prover too weak. 15303 trivial. 0 not checked. [2022-11-22 01:45:24,869 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:45:24,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801395200] [2022-11-22 01:45:24,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801395200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:45:24,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2047168079] [2022-11-22 01:45:24,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:24,870 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:45:24,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:45:24,871 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:45:24,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2022-11-22 01:45:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:35,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 5659 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:45:35,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:45:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 15374 backedges. 2518 proven. 1 refuted. 0 times theorem prover too weak. 12855 trivial. 0 not checked. [2022-11-22 01:45:35,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:45:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 15374 backedges. 10 proven. 61 refuted. 0 times theorem prover too weak. 15303 trivial. 0 not checked. [2022-11-22 01:45:37,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2047168079] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:45:37,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700686064] [2022-11-22 01:45:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:37,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:45:37,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:45:37,157 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:45:37,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-11-22 01:45:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:41,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 5659 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:45:41,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:45:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 15374 backedges. 2518 proven. 1 refuted. 0 times theorem prover too weak. 12855 trivial. 0 not checked. [2022-11-22 01:45:42,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:45:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 15374 backedges. 10 proven. 61 refuted. 0 times theorem prover too weak. 15303 trivial. 0 not checked. [2022-11-22 01:45:43,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700686064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:45:43,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:45:43,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2022-11-22 01:45:43,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714739458] [2022-11-22 01:45:43,918 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:45:43,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:45:43,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:45:43,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:45:43,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:45:43,920 INFO L87 Difference]: Start difference. First operand 2775 states and 3735 transitions. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-11-22 01:45:45,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:45,153 INFO L93 Difference]: Finished difference Result 5552 states and 7481 transitions. [2022-11-22 01:45:45,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:45:45,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 1385 [2022-11-22 01:45:45,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:45,168 INFO L225 Difference]: With dead ends: 5552 [2022-11-22 01:45:45,168 INFO L226 Difference]: Without dead ends: 2796 [2022-11-22 01:45:45,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8306 GetRequests, 8301 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:45:45,176 INFO L413 NwaCegarLoop]: 1979 mSDtfsCounter, 29 mSDsluCounter, 5908 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 7887 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:45,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 7887 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:45:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2022-11-22 01:45:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2796. [2022-11-22 01:45:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 1877 states have (on average 1.2104421949920086) internal successors, (2272), 1941 states have internal predecessors, (2272), 741 states have call successors, (741), 169 states have call predecessors, (741), 171 states have return successors, (749), 740 states have call predecessors, (749), 741 states have call successors, (749) [2022-11-22 01:45:45,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 3762 transitions. [2022-11-22 01:45:45,979 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 3762 transitions. Word has length 1385 [2022-11-22 01:45:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:45,980 INFO L495 AbstractCegarLoop]: Abstraction has 2796 states and 3762 transitions. [2022-11-22 01:45:45,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-11-22 01:45:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 3762 transitions. [2022-11-22 01:45:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1318 [2022-11-22 01:45:45,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:45,995 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 38, 38, 34, 34, 34, 34, 34, 34, 22, 20, 20, 20, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:46,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-11-22 01:45:46,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2022-11-22 01:45:46,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2022-11-22 01:45:46,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:45:46,596 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:45:46,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:46,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1117065138, now seen corresponding path program 1 times [2022-11-22 01:45:46,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:45:46,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254305711] [2022-11-22 01:45:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:46,600 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 [2022-11-22 01:45:46,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:45:46,602 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:45:46,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-22 01:45:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:54,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 5778 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:45:54,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:45:54,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12183 backedges. 2460 proven. 28 refuted. 0 times theorem prover too weak. 9695 trivial. 0 not checked. [2022-11-22 01:45:54,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:45:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12183 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 11983 trivial. 0 not checked. [2022-11-22 01:45:57,028 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:45:57,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254305711] [2022-11-22 01:45:57,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254305711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:45:57,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1808720509] [2022-11-22 01:45:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:57,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:45:57,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:45:57,030 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:45:57,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2022-11-22 01:46:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:02,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 5778 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:46:02,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:46:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12183 backedges. 5906 proven. 0 refuted. 0 times theorem prover too weak. 6277 trivial. 0 not checked. [2022-11-22 01:46:03,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:46:03,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1808720509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:03,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:46:03,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7] total 13 [2022-11-22 01:46:03,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031786579] [2022-11-22 01:46:03,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:46:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:46:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:46:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:46:03,126 INFO L87 Difference]: Start difference. First operand 2796 states and 3762 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2022-11-22 01:46:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:04,247 INFO L93 Difference]: Finished difference Result 5580 states and 7511 transitions. [2022-11-22 01:46:04,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:46:04,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 1317 [2022-11-22 01:46:04,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:04,257 INFO L225 Difference]: With dead ends: 5580 [2022-11-22 01:46:04,257 INFO L226 Difference]: Without dead ends: 2803 [2022-11-22 01:46:04,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3948 GetRequests, 3937 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:46:04,262 INFO L413 NwaCegarLoop]: 1973 mSDtfsCounter, 6 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:04,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3942 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:46:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-11-22 01:46:05,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2797. [2022-11-22 01:46:05,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1878 states have (on average 1.2103301384451544) internal successors, (2273), 1942 states have internal predecessors, (2273), 741 states have call successors, (741), 169 states have call predecessors, (741), 171 states have return successors, (749), 740 states have call predecessors, (749), 741 states have call successors, (749) [2022-11-22 01:46:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3763 transitions. [2022-11-22 01:46:05,032 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3763 transitions. Word has length 1317 [2022-11-22 01:46:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:05,033 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 3763 transitions. [2022-11-22 01:46:05,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 2 states have call successors, (112), 2 states have call predecessors, (112), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2022-11-22 01:46:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3763 transitions. [2022-11-22 01:46:05,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1434 [2022-11-22 01:46:05,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:05,048 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 12, 12, 10, 10, 9, 9, 7, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:05,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2022-11-22 01:46:05,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-22 01:46:05,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:46:05,449 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:46:05,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:05,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1731951736, now seen corresponding path program 2 times [2022-11-22 01:46:05,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:46:05,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126552378] [2022-11-22 01:46:05,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:46:05,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:46:05,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:46:05,454 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:46:05,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-22 01:46:08,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-22 01:46:08,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:46:08,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:46:08,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:46:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 15878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15878 trivial. 0 not checked. [2022-11-22 01:46:08,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:46:08,680 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:46:08,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126552378] [2022-11-22 01:46:08,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126552378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:08,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:08,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:08,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730275979] [2022-11-22 01:46:08,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:08,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:46:08,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:46:08,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:46:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:46:08,682 INFO L87 Difference]: Start difference. First operand 2797 states and 3763 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 2 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-22 01:46:12,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:12,964 INFO L93 Difference]: Finished difference Result 4255 states and 5832 transitions. [2022-11-22 01:46:12,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:46:12,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 2 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 1433 [2022-11-22 01:46:12,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:12,977 INFO L225 Difference]: With dead ends: 4255 [2022-11-22 01:46:12,977 INFO L226 Difference]: Without dead ends: 4253 [2022-11-22 01:46:12,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1447 GetRequests, 1430 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:46:12,980 INFO L413 NwaCegarLoop]: 2880 mSDtfsCounter, 808 mSDsluCounter, 13432 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 16312 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:12,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 16312 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:46:12,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2022-11-22 01:46:13,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 2797. [2022-11-22 01:46:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1878 states have (on average 1.2097976570820022) internal successors, (2272), 1942 states have internal predecessors, (2272), 741 states have call successors, (741), 169 states have call predecessors, (741), 171 states have return successors, (749), 740 states have call predecessors, (749), 741 states have call successors, (749) [2022-11-22 01:46:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3762 transitions. [2022-11-22 01:46:13,790 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3762 transitions. Word has length 1433 [2022-11-22 01:46:13,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:13,791 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 3762 transitions. [2022-11-22 01:46:13,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 2 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2022-11-22 01:46:13,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3762 transitions. [2022-11-22 01:46:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1464 [2022-11-22 01:46:13,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:13,807 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:13,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-22 01:46:14,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:46:14,011 INFO L420 AbstractCegarLoop]: === Iteration 44 === 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 27 more)] === [2022-11-22 01:46:14,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:14,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1568447065, now seen corresponding path program 1 times [2022-11-22 01:46:14,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:46:14,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007531417] [2022-11-22 01:46:14,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:14,015 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 [2022-11-22 01:46:14,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:46:14,016 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:46:14,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-22 01:46:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:21,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 5966 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:46:21,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:46:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 16195 backedges. 2970 proven. 28 refuted. 0 times theorem prover too weak. 13197 trivial. 0 not checked. [2022-11-22 01:46:22,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:46:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 16195 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15899 trivial. 0 not checked. [2022-11-22 01:46:24,765 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:46:24,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007531417] [2022-11-22 01:46:24,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007531417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:46:24,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1826610216] [2022-11-22 01:46:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:24,766 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:46:24,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:46:24,767 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:46:24,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2022-11-22 01:46:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:36,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 5966 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:46:36,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:46:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 16195 backedges. 2970 proven. 28 refuted. 0 times theorem prover too weak. 13197 trivial. 0 not checked. [2022-11-22 01:46:37,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:46:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 16195 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15899 trivial. 0 not checked. [2022-11-22 01:46:39,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1826610216] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:46:39,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749765998] [2022-11-22 01:46:39,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:39,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:46:39,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:46:39,039 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:46:39,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2022-11-22 01:46:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:44,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 5966 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:46:44,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:47:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 16195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16195 trivial. 0 not checked. [2022-11-22 01:47:01,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:47:01,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749765998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:01,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:47:01,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7, 7, 7] total 15 [2022-11-22 01:47:01,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916286498] [2022-11-22 01:47:01,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:01,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:47:01,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:47:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:47:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:47:01,602 INFO L87 Difference]: Start difference. First operand 2797 states and 3762 transitions. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2022-11-22 01:47:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:02,806 INFO L93 Difference]: Finished difference Result 3526 states and 4689 transitions. [2022-11-22 01:47:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:47:02,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) Word has length 1463 [2022-11-22 01:47:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:02,821 INFO L225 Difference]: With dead ends: 3526 [2022-11-22 01:47:02,821 INFO L226 Difference]: Without dead ends: 3524 [2022-11-22 01:47:02,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7312 GetRequests, 7297 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:47:02,824 INFO L413 NwaCegarLoop]: 2169 mSDtfsCounter, 1155 mSDsluCounter, 5253 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 7422 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:02,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 7422 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:47:02,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3524 states. [2022-11-22 01:47:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3524 to 3516. [2022-11-22 01:47:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3516 states, 2331 states have (on average 1.2024882024882024) internal successors, (2803), 2400 states have internal predecessors, (2803), 935 states have call successors, (935), 242 states have call predecessors, (935), 244 states have return successors, (942), 934 states have call predecessors, (942), 935 states have call successors, (942) [2022-11-22 01:47:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3516 states to 3516 states and 4680 transitions. [2022-11-22 01:47:03,914 INFO L78 Accepts]: Start accepts. Automaton has 3516 states and 4680 transitions. Word has length 1463 [2022-11-22 01:47:03,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:03,914 INFO L495 AbstractCegarLoop]: Abstraction has 3516 states and 4680 transitions. [2022-11-22 01:47:03,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 3 states have internal predecessors, (209), 1 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 1 states have call predecessors, (80), 1 states have call successors, (80) [2022-11-22 01:47:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3516 states and 4680 transitions. [2022-11-22 01:47:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1454 [2022-11-22 01:47:03,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:03,981 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 13, 13, 10, 10, 9, 9, 9, 9, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:04,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:04,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (69)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:04,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:04,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:47:04,582 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:47:04,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash -532483620, now seen corresponding path program 1 times [2022-11-22 01:47:04,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:47:04,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328991213] [2022-11-22 01:47:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:04,586 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 [2022-11-22 01:47:04,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:47:04,587 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:47:04,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-22 01:47:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:12,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 5849 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:47:12,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:47:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 16073 backedges. 2866 proven. 28 refuted. 0 times theorem prover too weak. 13179 trivial. 0 not checked. [2022-11-22 01:47:12,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:47:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16073 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15777 trivial. 0 not checked. [2022-11-22 01:47:14,914 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:47:14,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328991213] [2022-11-22 01:47:14,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328991213] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:47:14,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [490222640] [2022-11-22 01:47:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:14,915 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:47:14,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:47:14,916 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:47:14,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2022-11-22 01:47:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:26,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 5849 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:47:26,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:47:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 16073 backedges. 2866 proven. 28 refuted. 0 times theorem prover too weak. 13179 trivial. 0 not checked. [2022-11-22 01:47:27,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:47:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 16073 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15777 trivial. 0 not checked. [2022-11-22 01:47:29,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [490222640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:47:29,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853711326] [2022-11-22 01:47:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:29,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:47:29,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:47:29,324 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:47:29,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2022-11-22 01:47:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:34,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 5849 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 01:47:34,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:47:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 16073 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16073 trivial. 0 not checked. [2022-11-22 01:47:35,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:47:35,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853711326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:35,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:47:35,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 7, 7, 7] total 20 [2022-11-22 01:47:35,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843790873] [2022-11-22 01:47:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:35,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:47:35,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:47:35,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:47:35,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:47:35,799 INFO L87 Difference]: Start difference. First operand 3516 states and 4680 transitions. Second operand has 10 states, 10 states have (on average 21.7) internal successors, (217), 9 states have internal predecessors, (217), 2 states have call successors, (80), 1 states have call predecessors, (80), 2 states have return successors, (80), 3 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-22 01:47:40,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:40,125 INFO L93 Difference]: Finished difference Result 7797 states and 10447 transitions. [2022-11-22 01:47:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:47:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.7) internal successors, (217), 9 states have internal predecessors, (217), 2 states have call successors, (80), 1 states have call predecessors, (80), 2 states have return successors, (80), 3 states have call predecessors, (80), 2 states have call successors, (80) Word has length 1453 [2022-11-22 01:47:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:40,137 INFO L225 Difference]: With dead ends: 7797 [2022-11-22 01:47:40,137 INFO L226 Difference]: Without dead ends: 4300 [2022-11-22 01:47:40,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7270 GetRequests, 7246 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-11-22 01:47:40,145 INFO L413 NwaCegarLoop]: 2350 mSDtfsCounter, 954 mSDsluCounter, 18201 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 20551 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:40,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 20551 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 01:47:40,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4300 states. [2022-11-22 01:47:41,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4300 to 3770. [2022-11-22 01:47:41,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 2523 states have (on average 1.2037257233452239) internal successors, (3037), 2601 states have internal predecessors, (3037), 995 states have call successors, (995), 242 states have call predecessors, (995), 246 states have return successors, (1009), 995 states have call predecessors, (1009), 995 states have call successors, (1009) [2022-11-22 01:47:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 5041 transitions. [2022-11-22 01:47:41,582 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 5041 transitions. Word has length 1453 [2022-11-22 01:47:41,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:41,582 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 5041 transitions. [2022-11-22 01:47:41,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.7) internal successors, (217), 9 states have internal predecessors, (217), 2 states have call successors, (80), 1 states have call predecessors, (80), 2 states have return successors, (80), 3 states have call predecessors, (80), 2 states have call successors, (80) [2022-11-22 01:47:41,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 5041 transitions. [2022-11-22 01:47:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1486 [2022-11-22 01:47:41,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:41,599 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:41,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:41,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:42,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2022-11-22 01:47:42,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:47:42,200 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:47:42,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:42,201 INFO L85 PathProgramCache]: Analyzing trace with hash -810886561, now seen corresponding path program 1 times [2022-11-22 01:47:42,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:47:42,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157776647] [2022-11-22 01:47:42,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:42,204 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 [2022-11-22 01:47:42,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:47:42,206 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:47:42,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-22 01:47:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:50,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 6064 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:47:50,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:47:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 3018 proven. 28 refuted. 0 times theorem prover too weak. 13236 trivial. 0 not checked. [2022-11-22 01:47:50,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:47:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15986 trivial. 0 not checked. [2022-11-22 01:47:53,365 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:47:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157776647] [2022-11-22 01:47:53,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157776647] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:47:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1022706451] [2022-11-22 01:47:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:53,365 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:47:53,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:47:53,366 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:47:53,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2022-11-22 01:48:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:05,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 6064 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:48:05,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:48:06,134 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 3018 proven. 28 refuted. 0 times theorem prover too weak. 13236 trivial. 0 not checked. [2022-11-22 01:48:06,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:48:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15986 trivial. 0 not checked. [2022-11-22 01:48:08,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1022706451] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:48:08,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580119406] [2022-11-22 01:48:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:08,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:48:08,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:48:08,292 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:48:08,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2022-11-22 01:48:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:14,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 6064 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 01:48:14,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:48:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16282 trivial. 0 not checked. [2022-11-22 01:48:14,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:48:14,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580119406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:14,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:48:14,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7, 7, 7] total 16 [2022-11-22 01:48:14,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301388954] [2022-11-22 01:48:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:14,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:48:14,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:48:14,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:48:14,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:48:14,886 INFO L87 Difference]: Start difference. First operand 3770 states and 5041 transitions. Second operand has 6 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-22 01:48:16,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:16,403 INFO L93 Difference]: Finished difference Result 3770 states and 5041 transitions. [2022-11-22 01:48:16,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:48:16,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 1485 [2022-11-22 01:48:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:16,413 INFO L225 Difference]: With dead ends: 3770 [2022-11-22 01:48:16,413 INFO L226 Difference]: Without dead ends: 3768 [2022-11-22 01:48:16,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7422 GetRequests, 7406 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:48:16,414 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 48 mSDsluCounter, 7819 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 9787 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:16,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 9787 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:48:16,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2022-11-22 01:48:17,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3768. [2022-11-22 01:48:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 2522 states have (on average 1.2022204599524187) internal successors, (3032), 2599 states have internal predecessors, (3032), 995 states have call successors, (995), 242 states have call predecessors, (995), 246 states have return successors, (1009), 995 states have call predecessors, (1009), 995 states have call successors, (1009) [2022-11-22 01:48:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5036 transitions. [2022-11-22 01:48:17,514 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5036 transitions. Word has length 1485 [2022-11-22 01:48:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:17,515 INFO L495 AbstractCegarLoop]: Abstraction has 3768 states and 5036 transitions. [2022-11-22 01:48:17,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2022-11-22 01:48:17,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5036 transitions. [2022-11-22 01:48:17,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1485 [2022-11-22 01:48:17,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:17,534 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 10, 10, 10, 10, 9, 9, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:17,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2022-11-22 01:48:17,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (75)] Forceful destruction successful, exit code 0 [2022-11-22 01:48:18,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2022-11-22 01:48:18,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:48:18,159 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__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 27 more)] === [2022-11-22 01:48:18,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash -630541162, now seen corresponding path program 1 times [2022-11-22 01:48:18,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:48:18,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907496168] [2022-11-22 01:48:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:18,163 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 [2022-11-22 01:48:18,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:48:18,164 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:48:18,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-22 01:48:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:26,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:48:26,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:48:26,730 INFO L134 CoverageAnalysis]: Checked inductivity of 16310 backedges. 3048 proven. 28 refuted. 0 times theorem prover too weak. 13234 trivial. 0 not checked. [2022-11-22 01:48:26,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:48:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16310 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 16014 trivial. 0 not checked. [2022-11-22 01:48:29,256 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:48:29,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907496168] [2022-11-22 01:48:29,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907496168] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:48:29,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1331292780] [2022-11-22 01:48:29,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:29,256 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:48:29,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:48:29,257 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:48:29,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2022-11-22 01:48:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:41,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:48:41,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:48:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 16310 backedges. 3048 proven. 28 refuted. 0 times theorem prover too weak. 13234 trivial. 0 not checked. [2022-11-22 01:48:42,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:48:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16310 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 16014 trivial. 0 not checked. [2022-11-22 01:48:44,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1331292780] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:48:44,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849280635] [2022-11-22 01:48:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:44,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:48:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:48:44,229 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:48:44,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2022-11-22 01:48:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:50,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-22 01:48:50,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:48:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 16310 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 15999 trivial. 0 not checked. [2022-11-22 01:48:52,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:48:52,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849280635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:52,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:48:52,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7, 7, 7] total 22 [2022-11-22 01:48:52,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96597804] [2022-11-22 01:48:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:52,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:48:52,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:48:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:48:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:48:52,277 INFO L87 Difference]: Start difference. First operand 3768 states and 5036 transitions. Second operand has 12 states, 12 states have (on average 19.5) internal successors, (234), 10 states have internal predecessors, (234), 3 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (86), 5 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-22 01:48:58,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:58,295 INFO L93 Difference]: Finished difference Result 7888 states and 10581 transitions. [2022-11-22 01:48:58,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:48:58,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.5) internal successors, (234), 10 states have internal predecessors, (234), 3 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (86), 5 states have call predecessors, (86), 3 states have call successors, (86) Word has length 1484 [2022-11-22 01:48:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:58,309 INFO L225 Difference]: With dead ends: 7888 [2022-11-22 01:48:58,309 INFO L226 Difference]: Without dead ends: 4137 [2022-11-22 01:48:58,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7423 GetRequests, 7396 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:48:58,318 INFO L413 NwaCegarLoop]: 2441 mSDtfsCounter, 457 mSDsluCounter, 23633 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 26074 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:58,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 26074 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 01:48:58,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2022-11-22 01:48:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 3536. [2022-11-22 01:48:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2346 states have (on average 1.1994884910485935) internal successors, (2814), 2415 states have internal predecessors, (2814), 939 states have call successors, (939), 242 states have call predecessors, (939), 246 states have return successors, (951), 939 states have call predecessors, (951), 939 states have call successors, (951) [2022-11-22 01:48:59,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 4704 transitions. [2022-11-22 01:48:59,397 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 4704 transitions. Word has length 1484 [2022-11-22 01:48:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:59,398 INFO L495 AbstractCegarLoop]: Abstraction has 3536 states and 4704 transitions. [2022-11-22 01:48:59,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.5) internal successors, (234), 10 states have internal predecessors, (234), 3 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (86), 5 states have call predecessors, (86), 3 states have call successors, (86) [2022-11-22 01:48:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 4704 transitions. [2022-11-22 01:48:59,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1490 [2022-11-22 01:48:59,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:59,415 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:59,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-22 01:48:59,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (78)] Forceful destruction successful, exit code 0 [2022-11-22 01:48:59,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2022-11-22 01:49:00,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:49:00,016 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:49:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:00,017 INFO L85 PathProgramCache]: Analyzing trace with hash -115832027, now seen corresponding path program 1 times [2022-11-22 01:49:00,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:49:00,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217651850] [2022-11-22 01:49:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:00,020 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 [2022-11-22 01:49:00,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:49:00,022 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:49:00,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-22 01:49:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:08,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 6071 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:49:08,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:49:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 3018 proven. 28 refuted. 0 times theorem prover too weak. 13236 trivial. 0 not checked. [2022-11-22 01:49:09,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:49:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15986 trivial. 0 not checked. [2022-11-22 01:49:11,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:49:11,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217651850] [2022-11-22 01:49:11,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217651850] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:49:11,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2078556835] [2022-11-22 01:49:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:11,532 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:49:11,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:49:11,533 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:49:11,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (81)] Waiting until timeout for monitored process [2022-11-22 01:49:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:19,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 6071 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:49:19,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:49:37,059 INFO L134 CoverageAnalysis]: Checked inductivity of 16282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16282 trivial. 0 not checked. [2022-11-22 01:49:37,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:49:37,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2078556835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:37,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:49:37,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7, 7] total 13 [2022-11-22 01:49:37,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814452651] [2022-11-22 01:49:37,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:37,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:49:37,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:49:37,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:49:37,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:49:37,063 INFO L87 Difference]: Start difference. First operand 3536 states and 4704 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2022-11-22 01:49:38,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:38,076 INFO L93 Difference]: Finished difference Result 7043 states and 9403 transitions. [2022-11-22 01:49:38,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:49:38,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 1489 [2022-11-22 01:49:38,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:38,092 INFO L225 Difference]: With dead ends: 7043 [2022-11-22 01:49:38,093 INFO L226 Difference]: Without dead ends: 3526 [2022-11-22 01:49:38,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4464 GetRequests, 4453 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:49:38,106 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 1576 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 1966 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 [2022-11-22 01:49:38,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 1966 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:49:38,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-11-22 01:49:39,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3526. [2022-11-22 01:49:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 2337 states have (on average 1.1968335472828413) internal successors, (2797), 2405 states have internal predecessors, (2797), 939 states have call successors, (939), 242 states have call predecessors, (939), 246 states have return successors, (951), 939 states have call predecessors, (951), 939 states have call successors, (951) [2022-11-22 01:49:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 4687 transitions. [2022-11-22 01:49:39,272 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 4687 transitions. Word has length 1489 [2022-11-22 01:49:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:39,272 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 4687 transitions. [2022-11-22 01:49:39,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2022-11-22 01:49:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 4687 transitions. [2022-11-22 01:49:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1493 [2022-11-22 01:49:39,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:39,289 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 11, 11, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:39,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (81)] Forceful destruction successful, exit code 0 [2022-11-22 01:49:39,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2022-11-22 01:49:39,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:49:39,690 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:49:39,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:39,690 INFO L85 PathProgramCache]: Analyzing trace with hash 625653920, now seen corresponding path program 1 times [2022-11-22 01:49:39,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:49:39,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988194904] [2022-11-22 01:49:39,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:39,694 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 [2022-11-22 01:49:39,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:49:39,695 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:49:39,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-22 01:49:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:48,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 6023 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:49:48,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:49:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16301 backedges. 3027 proven. 28 refuted. 0 times theorem prover too weak. 13246 trivial. 0 not checked. [2022-11-22 01:49:49,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:49:51,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16301 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 16005 trivial. 0 not checked. [2022-11-22 01:49:51,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:49:51,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988194904] [2022-11-22 01:49:51,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988194904] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:49:51,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1535918012] [2022-11-22 01:49:51,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:51,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:49:51,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:49:51,558 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:49:51,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (83)] Waiting until timeout for monitored process [2022-11-22 01:50:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:05,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 6023 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:50:05,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:05,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16301 backedges. 3027 proven. 28 refuted. 0 times theorem prover too weak. 13246 trivial. 0 not checked. [2022-11-22 01:50:05,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:07,743 INFO L134 CoverageAnalysis]: Checked inductivity of 16301 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 16005 trivial. 0 not checked. [2022-11-22 01:50:07,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1535918012] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:50:07,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166954736] [2022-11-22 01:50:07,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:07,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:07,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:07,746 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:07,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2022-11-22 01:50:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:14,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 6023 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:50:14,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 16301 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 16259 trivial. 0 not checked. [2022-11-22 01:50:14,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:50:14,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166954736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:14,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:50:14,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 7, 7, 7] total 15 [2022-11-22 01:50:14,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105560836] [2022-11-22 01:50:14,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:14,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:50:14,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:50:14,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:50:14,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:50:14,783 INFO L87 Difference]: Start difference. First operand 3526 states and 4687 transitions. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 4 states have internal predecessors, (225), 2 states have call successors, (88), 3 states have call predecessors, (88), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-11-22 01:50:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:16,241 INFO L93 Difference]: Finished difference Result 3526 states and 4687 transitions. [2022-11-22 01:50:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:50:16,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 4 states have internal predecessors, (225), 2 states have call successors, (88), 3 states have call predecessors, (88), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 1492 [2022-11-22 01:50:16,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:16,249 INFO L225 Difference]: With dead ends: 3526 [2022-11-22 01:50:16,250 INFO L226 Difference]: Without dead ends: 3524 [2022-11-22 01:50:16,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7457 GetRequests, 7442 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:50:16,251 INFO L413 NwaCegarLoop]: 2279 mSDtfsCounter, 895 mSDsluCounter, 6066 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 8345 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:16,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 8345 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:50:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3524 states. [2022-11-22 01:50:17,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3524 to 3524. [2022-11-22 01:50:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 2336 states have (on average 1.1960616438356164) internal successors, (2794), 2403 states have internal predecessors, (2794), 939 states have call successors, (939), 242 states have call predecessors, (939), 246 states have return successors, (951), 939 states have call predecessors, (951), 939 states have call successors, (951) [2022-11-22 01:50:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4684 transitions. [2022-11-22 01:50:17,224 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4684 transitions. Word has length 1492 [2022-11-22 01:50:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:17,225 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 4684 transitions. [2022-11-22 01:50:17,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 4 states have internal predecessors, (225), 2 states have call successors, (88), 3 states have call predecessors, (88), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-11-22 01:50:17,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4684 transitions. [2022-11-22 01:50:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1502 [2022-11-22 01:50:17,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:17,242 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 45, 45, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 10, 10, 9, 9, 9, 9, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:17,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:17,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:17,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (83)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:17,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:50:17,843 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_assert_linux_kernel_locking_mutex__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 27 more)] === [2022-11-22 01:50:17,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1461314016, now seen corresponding path program 1 times [2022-11-22 01:50:17,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:50:17,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354579875] [2022-11-22 01:50:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:17,846 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 [2022-11-22 01:50:17,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:50:17,847 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:50:17,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-22 01:50:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:26,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 5838 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:50:26,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 16214 backedges. 2965 proven. 28 refuted. 0 times theorem prover too weak. 13221 trivial. 0 not checked. [2022-11-22 01:50:26,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 16214 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15918 trivial. 0 not checked. [2022-11-22 01:50:29,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:50:29,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354579875] [2022-11-22 01:50:29,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354579875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:50:29,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1609398008] [2022-11-22 01:50:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:29,258 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:50:29,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:50:29,260 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:50:29,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2022-11-22 01:50:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:42,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 5838 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:50:42,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 16214 backedges. 2965 proven. 28 refuted. 0 times theorem prover too weak. 13221 trivial. 0 not checked. [2022-11-22 01:50:42,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 16214 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 15918 trivial. 0 not checked. [2022-11-22 01:50:44,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1609398008] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:50:44,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068905982] [2022-11-22 01:50:44,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:44,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:44,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:44,910 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:44,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2022-11-22 01:50:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:51,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 5838 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:50:51,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 16214 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 15886 trivial. 0 not checked. [2022-11-22 01:50:51,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:50:51,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068905982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:51,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:50:51,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7, 7, 7] total 16 [2022-11-22 01:50:51,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491761166] [2022-11-22 01:50:51,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:51,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:50:51,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:50:51,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:50:51,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:50:51,972 INFO L87 Difference]: Start difference. First operand 3524 states and 4684 transitions. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 3 states have call successors, (88), 2 states have call predecessors, (88), 3 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2022-11-22 01:50:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:55,664 INFO L93 Difference]: Finished difference Result 7706 states and 10307 transitions. [2022-11-22 01:50:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:50:55,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 3 states have call successors, (88), 2 states have call predecessors, (88), 3 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 1501 [2022-11-22 01:50:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:55,675 INFO L225 Difference]: With dead ends: 7706 [2022-11-22 01:50:55,675 INFO L226 Difference]: Without dead ends: 4200 [2022-11-22 01:50:55,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7503 GetRequests, 7487 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:50:55,682 INFO L413 NwaCegarLoop]: 2872 mSDtfsCounter, 531 mSDsluCounter, 10187 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 13059 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:55,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 13059 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 01:50:55,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2022-11-22 01:50:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 3523. [2022-11-22 01:50:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 2336 states have (on average 1.1956335616438356) internal successors, (2793), 2402 states have internal predecessors, (2793), 938 states have call successors, (938), 242 states have call predecessors, (938), 246 states have return successors, (950), 939 states have call predecessors, (950), 938 states have call successors, (950) [2022-11-22 01:50:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4681 transitions. [2022-11-22 01:50:56,647 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4681 transitions. Word has length 1501 [2022-11-22 01:50:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:56,648 INFO L495 AbstractCegarLoop]: Abstraction has 3523 states and 4681 transitions. [2022-11-22 01:50:56,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 3 states have call successors, (88), 2 states have call predecessors, (88), 3 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2022-11-22 01:50:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4681 transitions. [2022-11-22 01:50:56,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1743 [2022-11-22 01:50:56,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:56,674 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 52, 52, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 19, 19, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:56,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:56,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:57,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:57,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:50:57,287 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:50:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1580229087, now seen corresponding path program 1 times [2022-11-22 01:50:57,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:50:57,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894372882] [2022-11-22 01:50:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:57,291 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 [2022-11-22 01:50:57,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:50:57,292 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:50:57,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2022-11-22 01:51:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:07,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 6916 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:51:07,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:51:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18053 backedges. 3214 proven. 28 refuted. 0 times theorem prover too weak. 14811 trivial. 0 not checked. [2022-11-22 01:51:07,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:51:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 18053 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 17757 trivial. 0 not checked. [2022-11-22 01:51:10,451 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:51:10,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894372882] [2022-11-22 01:51:10,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894372882] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:51:10,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1509232503] [2022-11-22 01:51:10,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:10,452 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:51:10,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:51:10,455 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:51:10,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (89)] Waiting until timeout for monitored process [2022-11-22 01:51:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:20,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 6916 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:51:20,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:51:20,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18053 backedges. 1614 proven. 0 refuted. 0 times theorem prover too weak. 16439 trivial. 0 not checked. [2022-11-22 01:51:20,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:51:20,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1509232503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:20,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:51:20,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7] total 13 [2022-11-22 01:51:20,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518061432] [2022-11-22 01:51:20,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:20,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:51:20,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:51:20,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:51:20,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:51:20,174 INFO L87 Difference]: Start difference. First operand 3523 states and 4681 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 2 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2022-11-22 01:51:22,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:51:23,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:23,533 INFO L93 Difference]: Finished difference Result 7057 states and 9397 transitions. [2022-11-22 01:51:23,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:51:23,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 2 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) Word has length 1742 [2022-11-22 01:51:23,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:23,545 INFO L225 Difference]: With dead ends: 7057 [2022-11-22 01:51:23,545 INFO L226 Difference]: Without dead ends: 3553 [2022-11-22 01:51:23,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5223 GetRequests, 5212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:51:23,552 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 12 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:23,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3920 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 01:51:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3553 states. [2022-11-22 01:51:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3553 to 3547. [2022-11-22 01:51:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3547 states, 2354 states have (on average 1.1958368734069669) internal successors, (2815), 2420 states have internal predecessors, (2815), 944 states have call successors, (944), 242 states have call predecessors, (944), 246 states have return successors, (956), 945 states have call predecessors, (956), 944 states have call successors, (956) [2022-11-22 01:51:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4715 transitions. [2022-11-22 01:51:24,535 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4715 transitions. Word has length 1742 [2022-11-22 01:51:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:24,536 INFO L495 AbstractCegarLoop]: Abstraction has 3547 states and 4715 transitions. [2022-11-22 01:51:24,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 2 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2022-11-22 01:51:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4715 transitions. [2022-11-22 01:51:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1779 [2022-11-22 01:51:24,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:24,562 INFO L195 NwaCegarLoop]: trace histogram [61, 61, 52, 52, 40, 40, 40, 40, 40, 40, 22, 20, 20, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:24,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (89)] Forceful destruction successful, exit code 0 [2022-11-22 01:51:24,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Forceful destruction successful, exit code 0 [2022-11-22 01:51:24,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:51:24,963 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-11-22 01:51:24,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:24,963 INFO L85 PathProgramCache]: Analyzing trace with hash 214881830, now seen corresponding path program 1 times [2022-11-22 01:51:24,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:51:24,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421054275] [2022-11-22 01:51:24,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:24,967 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 [2022-11-22 01:51:24,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:51:24,968 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -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) [2022-11-22 01:51:24,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-22 01:51:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:35,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 6990 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:51:35,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:51:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 18074 backedges. 3253 proven. 28 refuted. 0 times theorem prover too weak. 14793 trivial. 0 not checked. [2022-11-22 01:51:35,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:51:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 18074 backedges. 10 proven. 286 refuted. 0 times theorem prover too weak. 17778 trivial. 0 not checked. [2022-11-22 01:51:38,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:51:38,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421054275] [2022-11-22 01:51:38,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421054275] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:51:38,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [900537695] [2022-11-22 01:51:38,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:38,422 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:51:38,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:51:38,423 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:51:38,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd4dadd-0906-40d0-8b36-98b9a7eef09e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (91)] Waiting until timeout for monitored process [2022-11-22 01:51:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:48,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 6990 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:51:48,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:52:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 18074 backedges. 152 proven. 1694 refuted. 0 times theorem prover too weak. 16228 trivial. 0 not checked. [2022-11-22 01:52:09,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:52:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 18074 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18074 trivial. 0 not checked. [2022-11-22 01:52:17,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [900537695] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:52:17,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:52:17,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 7, 9] total 24 [2022-11-22 01:52:17,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338278710] [2022-11-22 01:52:17,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:17,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:52:17,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:52:17,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:52:17,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:52:17,114 INFO L87 Difference]: Start difference. First operand 3547 states and 4715 transitions. Second operand has 9 states, 9 states have (on average 35.55555555555556) internal successors, (320), 8 states have internal predecessors, (320), 6 states have call successors, (133), 2 states have call predecessors, (133), 4 states have return successors, (133), 7 states have call predecessors, (133), 6 states have call successors, (133)