./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.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_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- 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 [2022-11-21 09:11:05,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:11:05,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:11:05,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:11:05,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:11:05,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:11:05,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:11:05,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:11:05,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:11:05,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:11:05,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:11:05,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:11:05,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:11:05,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:11:05,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:11:05,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:11:05,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:11:05,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:11:05,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:11:05,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:11:05,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:11:05,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:11:05,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:11:05,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:11:05,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:11:05,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:11:05,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:11:05,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:11:05,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:11:05,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:11:05,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:11:05,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:11:05,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:11:05,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:11:05,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:11:05,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:11:05,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:11:05,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:11:05,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:11:05,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:11:05,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:11:05,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 09:11:05,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:11:05,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:11:05,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:11:05,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:11:05,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:11:05,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:11:05,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:11:05,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:11:05,611 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:11:05,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:11:05,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:11:05,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:11:05,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:11:05,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:11:05,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:11:05,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:11:05,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:11:05,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:11:05,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:11:05,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:11:05,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:11:05,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:11:05,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:11:05,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:11:05,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:11:05,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:11:05,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:11:05,616 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:11:05,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:11:05,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:11:05,618 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_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2022-11-21 09:11:05,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:11:05,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:11:05,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:11:05,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:11:05,962 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:11:05,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 09:11:09,149 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:11:09,947 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:11:09,948 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 09:11:10,017 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data/5954403b8/06b76bbcc42b4db8b9edd64cfa89c33e/FLAG4b2f4a44e [2022-11-21 09:11:10,038 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data/5954403b8/06b76bbcc42b4db8b9edd64cfa89c33e [2022-11-21 09:11:10,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:11:10,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:11:10,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:11:10,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:11:10,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:11:10,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:10" (1/1) ... [2022-11-21 09:11:10,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687cdb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:10, skipping insertion in model container [2022-11-21 09:11:10,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:10" (1/1) ... [2022-11-21 09:11:10,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:11:10,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:11:11,854 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) [2022-11-21 09:11:11,866 INFO L158 Benchmark]: Toolchain (without parser) took 1818.77ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 109.4MB in the beginning and 165.5MB in the end (delta: -56.2MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2022-11-21 09:11:11,866 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 155.2MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:11:11,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1811.68ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 108.8MB in the beginning and 165.5MB in the end (delta: -56.7MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2022-11-21 09:11:11,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 155.2MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1811.68ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 108.8MB in the beginning and 165.5MB in the end (delta: -56.7MB). Peak memory consumption was 67.6MB. 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_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- 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 [2022-11-21 09:11:14,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:11:14,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:11:14,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:11:14,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:11:14,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:11:14,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:11:14,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:11:14,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:11:14,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:11:14,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:11:14,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:11:14,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:11:14,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:11:14,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:11:14,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:11:14,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:11:14,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:11:14,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:11:14,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:11:14,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:11:14,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:11:14,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:11:14,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:11:14,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:11:14,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:11:14,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:11:14,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:11:14,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:11:14,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:11:14,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:11:14,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:11:14,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:11:14,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:11:14,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:11:14,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:11:14,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:11:14,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:11:14,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:11:14,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:11:14,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:11:14,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 09:11:14,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:11:14,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:11:14,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:11:14,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:11:14,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:11:14,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:11:14,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:11:14,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:11:14,340 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:11:14,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:11:14,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:11:14,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:11:14,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:11:14,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:11:14,343 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:11:14,343 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 09:11:14,343 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 09:11:14,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:11:14,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:11:14,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:11:14,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:11:14,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:11:14,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:11:14,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:11:14,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:11:14,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:11:14,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:11:14,346 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 09:11:14,347 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 09:11:14,347 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:11:14,347 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:11:14,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:11:14,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 09:11:14,348 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_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2022-11-21 09:11:14,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:11:14,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:11:14,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:11:14,822 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:11:14,823 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:11:14,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 09:11:17,899 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:11:18,577 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:11:18,577 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 09:11:18,641 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data/17ed39635/60dac059d3aa4cdfa892fca409300e46/FLAGd26d2eeb0 [2022-11-21 09:11:18,673 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/data/17ed39635/60dac059d3aa4cdfa892fca409300e46 [2022-11-21 09:11:18,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:11:18,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:11:18,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:11:18,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:11:18,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:11:18,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:18" (1/1) ... [2022-11-21 09:11:18,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f57bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:18, skipping insertion in model container [2022-11-21 09:11:18,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:11:18" (1/1) ... [2022-11-21 09:11:18,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:11:18,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:11:21,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-21 09:11:21,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-21 09:11:21,323 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-21 09:11:21,324 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-21 09:11:21,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:11:21,397 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 09:11:21,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:11:21,968 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-21 09:11:21,968 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-21 09:11:21,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-21 09:11:21,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-21 09:11:21,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:11:22,008 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:11:22,434 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-21 09:11:22,435 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-21 09:11:22,435 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-21 09:11:22,436 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-21 09:11:22,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:11:22,645 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:11:22,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22 WrapperNode [2022-11-21 09:11:22,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:11:22,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:11:22,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:11:22,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:11:22,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:22,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:22,938 INFO L138 Inliner]: procedures = 372, calls = 1567, calls flagged for inlining = 197, calls inlined = 186, statements flattened = 3950 [2022-11-21 09:11:22,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:11:22,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:11:22,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:11:22,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:11:22,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:22,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:11:23,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:11:23,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:11:23,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:11:23,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (1/1) ... [2022-11-21 09:11:23,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:11:23,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:23,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:11:23,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:11:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-21 09:11:23,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-21 09:11:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-21 09:11:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-21 09:11:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-21 09:11:23,387 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-21 09:11:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 09:11:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 09:11:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-21 09:11:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 09:11:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 09:11:23,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 09:11:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 09:11:23,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 09:11:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-21 09:11:23,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-21 09:11:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 09:11:23,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 09:11:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 09:11:23,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 09:11:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 09:11:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 09:11:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-21 09:11:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-21 09:11:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-21 09:11:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-21 09:11:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-21 09:11:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-21 09:11:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-21 09:11:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-21 09:11:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-21 09:11:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-21 09:11:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 09:11:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 09:11:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-21 09:11:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-21 09:11:23,394 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-21 09:11:23,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-21 09:11:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-21 09:11:23,395 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-21 09:11:23,395 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-21 09:11:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-21 09:11:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 09:11:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 09:11:23,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-21 09:11:23,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-21 09:11:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 09:11:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 09:11:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-21 09:11:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-21 09:11:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-21 09:11:23,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-21 09:11:23,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-21 09:11:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-21 09:11:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-21 09:11:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-21 09:11:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:11:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-21 09:11:23,398 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-21 09:11:23,398 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-21 09:11:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-21 09:11:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:11:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-21 09:11:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-21 09:11:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-21 09:11:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-21 09:11:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-21 09:11:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-21 09:11:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-21 09:11:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-21 09:11:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-21 09:11:23,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-21 09:11:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-21 09:11:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-21 09:11:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-21 09:11:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-21 09:11:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-21 09:11:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-21 09:11:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-21 09:11:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-21 09:11:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-21 09:11:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-21 09:11:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-21 09:11:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:11:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 09:11:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 09:11:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-21 09:11:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 09:11:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-21 09:11:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-21 09:11:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-21 09:11:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-21 09:11:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 09:11:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 09:11:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-21 09:11:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-21 09:11:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 09:11:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 09:11:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-21 09:11:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-21 09:11:23,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-21 09:11:23,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-21 09:11:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-21 09:11:23,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-21 09:11:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 09:11:23,411 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 09:11:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-21 09:11:23,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-21 09:11:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-21 09:11:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-21 09:11:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-21 09:11:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-21 09:11:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-21 09:11:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-21 09:11:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 09:11:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 09:11:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-21 09:11:23,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-21 09:11:23,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-21 09:11:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-21 09:11:23,422 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 09:11:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 09:11:23,422 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 09:11:23,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 09:11:23,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 09:11:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 09:11:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-21 09:11:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-21 09:11:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-21 09:11:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-21 09:11:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-21 09:11:23,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-21 09:11:23,423 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 09:11:23,424 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 09:11:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-21 09:11:23,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-21 09:11:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-21 09:11:23,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-21 09:11:23,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-21 09:11:23,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-21 09:11:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-21 09:11:23,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-21 09:11:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 09:11:23,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 09:11:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-21 09:11:23,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-21 09:11:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 09:11:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-21 09:11:23,426 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-21 09:11:23,426 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-21 09:11:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 09:11:23,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 09:11:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-21 09:11:23,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-21 09:11:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-21 09:11:23,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-21 09:11:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-21 09:11:23,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-21 09:11:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-21 09:11:23,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-21 09:11:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:11:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-21 09:11:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-21 09:11:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-21 09:11:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-21 09:11:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-21 09:11:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-21 09:11:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-21 09:11:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-21 09:11:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:11:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 09:11:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 09:11:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 09:11:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 09:11:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:11:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-21 09:11:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-21 09:11:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-21 09:11:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-21 09:11:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-21 09:11:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-21 09:11:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 09:11:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 09:11:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-21 09:11:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-21 09:11:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-21 09:11:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-21 09:11:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-21 09:11:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-21 09:11:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-21 09:11:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-21 09:11:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-21 09:11:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-21 09:11:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-21 09:11:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 09:11:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 09:11:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-21 09:11:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-21 09:11:23,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-21 09:11:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-21 09:11:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-21 09:11:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-21 09:11:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-21 09:11:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-21 09:11:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-21 09:11:23,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-21 09:11:23,434 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-21 09:11:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-21 09:11:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 09:11:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 09:11:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-21 09:11:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-21 09:11:23,435 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-21 09:11:23,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-21 09:11:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-21 09:11:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-21 09:11:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-21 09:11:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-21 09:11:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-21 09:11:23,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-21 09:11:23,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:11:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:11:24,393 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:11:24,401 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:11:29,946 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 09:12:06,022 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-21 09:12:06,100 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:12:06,125 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:12:06,125 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 09:12:06,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:06 BoogieIcfgContainer [2022-11-21 09:12:06,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:12:06,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:12:06,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:12:06,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:12:06,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:11:18" (1/3) ... [2022-11-21 09:12:06,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52da7bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:12:06, skipping insertion in model container [2022-11-21 09:12:06,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:11:22" (2/3) ... [2022-11-21 09:12:06,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52da7bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:12:06, skipping insertion in model container [2022-11-21 09:12:06,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:12:06" (3/3) ... [2022-11-21 09:12:06,149 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 09:12:06,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:12:06,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 09:12:06,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:12:06,294 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e5f26ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:12:06,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 09:12:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 1648 states, 1110 states have (on average 1.2513513513513514) internal successors, (1389), 1145 states have internal predecessors, (1389), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) [2022-11-21 09:12:06,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 09:12:06,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:06,340 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:06,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:06,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:06,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1311610959, now seen corresponding path program 1 times [2022-11-21 09:12:06,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:06,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205603936] [2022-11-21 09:12:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:06,365 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 [2022-11-21 09:12:06,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:06,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:06,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:07,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:12:07,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-21 09:12:07,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:07,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:07,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205603936] [2022-11-21 09:12:07,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205603936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:07,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:07,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:07,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064857979] [2022-11-21 09:12:07,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:07,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:07,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:08,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:08,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:08,026 INFO L87 Difference]: Start difference. First operand has 1648 states, 1110 states have (on average 1.2513513513513514) internal successors, (1389), 1145 states have internal predecessors, (1389), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 09:12:08,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:08,797 INFO L93 Difference]: Finished difference Result 4804 states and 6757 transitions. [2022-11-21 09:12:08,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:08,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-11-21 09:12:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:08,844 INFO L225 Difference]: With dead ends: 4804 [2022-11-21 09:12:08,844 INFO L226 Difference]: Without dead ends: 3167 [2022-11-21 09:12:08,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:08,875 INFO L413 NwaCegarLoop]: 2662 mSDtfsCounter, 2134 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:08,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2134 Valid, 4855 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 09:12:08,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-11-21 09:12:09,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3163. [2022-11-21 09:12:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3163 states, 2138 states have (on average 1.244621141253508) internal successors, (2661), 2205 states have internal predecessors, (2661), 838 states have call successors, (838), 185 states have call predecessors, (838), 184 states have return successors, (834), 828 states have call predecessors, (834), 834 states have call successors, (834) [2022-11-21 09:12:09,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4333 transitions. [2022-11-21 09:12:09,203 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4333 transitions. Word has length 116 [2022-11-21 09:12:09,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:09,204 INFO L495 AbstractCegarLoop]: Abstraction has 3163 states and 4333 transitions. [2022-11-21 09:12:09,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 09:12:09,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4333 transitions. [2022-11-21 09:12:09,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-21 09:12:09,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:09,212 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:09,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:09,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:09,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:09,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:09,428 INFO L85 PathProgramCache]: Analyzing trace with hash -923209008, now seen corresponding path program 1 times [2022-11-21 09:12:09,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:09,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579657007] [2022-11-21 09:12:09,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:09,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:09,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:09,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:09,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:10,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:12:10,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-21 09:12:10,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:10,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:10,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579657007] [2022-11-21 09:12:10,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579657007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:10,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:10,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:10,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126454483] [2022-11-21 09:12:10,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:10,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:10,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:10,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:10,962 INFO L87 Difference]: Start difference. First operand 3163 states and 4333 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 09:12:11,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:11,954 INFO L93 Difference]: Finished difference Result 9145 states and 12523 transitions. [2022-11-21 09:12:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:11,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2022-11-21 09:12:11,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:12,010 INFO L225 Difference]: With dead ends: 9145 [2022-11-21 09:12:12,011 INFO L226 Difference]: Without dead ends: 6003 [2022-11-21 09:12:12,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:12,030 INFO L413 NwaCegarLoop]: 2634 mSDtfsCounter, 1994 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:12,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 4795 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 09:12:12,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2022-11-21 09:12:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 5982. [2022-11-21 09:12:12,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5982 states, 4019 states have (on average 1.2430952973376461) internal successors, (4996), 4149 states have internal predecessors, (4996), 1597 states have call successors, (1597), 366 states have call predecessors, (1597), 363 states have return successors, (1595), 1572 states have call predecessors, (1595), 1593 states have call successors, (1595) [2022-11-21 09:12:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 8188 transitions. [2022-11-21 09:12:12,546 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 8188 transitions. Word has length 117 [2022-11-21 09:12:12,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:12,547 INFO L495 AbstractCegarLoop]: Abstraction has 5982 states and 8188 transitions. [2022-11-21 09:12:12,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 09:12:12,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 8188 transitions. [2022-11-21 09:12:12,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-21 09:12:12,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:12,551 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:12,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:12,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:12,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1781401119, now seen corresponding path program 1 times [2022-11-21 09:12:12,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954876886] [2022-11-21 09:12:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:12,770 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 [2022-11-21 09:12:12,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:12,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:12,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:14,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:12:14,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-21 09:12:14,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:14,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:14,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954876886] [2022-11-21 09:12:14,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954876886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:14,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:14,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510925251] [2022-11-21 09:12:14,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:14,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:14,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:14,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:14,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:14,354 INFO L87 Difference]: Start difference. First operand 5982 states and 8188 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 09:12:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:15,345 INFO L93 Difference]: Finished difference Result 11704 states and 16048 transitions. [2022-11-21 09:12:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:15,346 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), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-11-21 09:12:15,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:15,383 INFO L225 Difference]: With dead ends: 11704 [2022-11-21 09:12:15,383 INFO L226 Difference]: Without dead ends: 5743 [2022-11-21 09:12:15,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:15,414 INFO L413 NwaCegarLoop]: 3050 mSDtfsCounter, 1586 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 5214 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:15,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 5214 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 09:12:15,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5743 states. [2022-11-21 09:12:15,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5743 to 5724. [2022-11-21 09:12:15,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 3877 states have (on average 1.2470982718596852) internal successors, (4835), 4003 states have internal predecessors, (4835), 1495 states have call successors, (1495), 353 states have call predecessors, (1495), 349 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2022-11-21 09:12:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 7822 transitions. [2022-11-21 09:12:15,834 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 7822 transitions. Word has length 128 [2022-11-21 09:12:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:15,834 INFO L495 AbstractCegarLoop]: Abstraction has 5724 states and 7822 transitions. [2022-11-21 09:12:15,835 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), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 09:12:15,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 7822 transitions. [2022-11-21 09:12:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-21 09:12:15,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:15,842 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:15,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:16,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:16,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:16,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:16,056 INFO L85 PathProgramCache]: Analyzing trace with hash -707156274, now seen corresponding path program 1 times [2022-11-21 09:12:16,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:16,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085073756] [2022-11-21 09:12:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:16,058 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 [2022-11-21 09:12:16,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:16,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:16,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:17,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:12:17,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-21 09:12:17,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:17,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:17,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085073756] [2022-11-21 09:12:17,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085073756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:17,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:17,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:17,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794238613] [2022-11-21 09:12:17,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:17,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:17,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:17,480 INFO L87 Difference]: Start difference. First operand 5724 states and 7822 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 09:12:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:18,409 INFO L93 Difference]: Finished difference Result 15457 states and 21131 transitions. [2022-11-21 09:12:18,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:18,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2022-11-21 09:12:18,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:18,476 INFO L225 Difference]: With dead ends: 15457 [2022-11-21 09:12:18,476 INFO L226 Difference]: Without dead ends: 10463 [2022-11-21 09:12:18,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:18,500 INFO L413 NwaCegarLoop]: 3431 mSDtfsCounter, 2098 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:18,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 5633 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 09:12:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-11-21 09:12:19,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10459. [2022-11-21 09:12:19,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10459 states, 7093 states have (on average 1.2467221204003947) internal successors, (8843), 7315 states have internal predecessors, (8843), 2723 states have call successors, (2723), 645 states have call predecessors, (2723), 640 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-21 09:12:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10459 states to 10459 states and 14287 transitions. [2022-11-21 09:12:19,271 INFO L78 Accepts]: Start accepts. Automaton has 10459 states and 14287 transitions. Word has length 172 [2022-11-21 09:12:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:19,273 INFO L495 AbstractCegarLoop]: Abstraction has 10459 states and 14287 transitions. [2022-11-21 09:12:19,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 09:12:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand 10459 states and 14287 transitions. [2022-11-21 09:12:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-21 09:12:19,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:19,280 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:19,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:19,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:19,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:19,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:19,504 INFO L85 PathProgramCache]: Analyzing trace with hash -566607664, now seen corresponding path program 1 times [2022-11-21 09:12:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:19,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210589771] [2022-11-21 09:12:19,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:19,506 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 [2022-11-21 09:12:19,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:19,508 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:19,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:20,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 09:12:20,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-21 09:12:23,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:23,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:23,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210589771] [2022-11-21 09:12:23,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210589771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:23,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:23,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:12:23,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069026734] [2022-11-21 09:12:23,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:23,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:12:23,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:23,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:12:23,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:12:23,157 INFO L87 Difference]: Start difference. First operand 10459 states and 14287 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-21 09:12:24,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:24,384 INFO L93 Difference]: Finished difference Result 10465 states and 14292 transitions. [2022-11-21 09:12:24,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:12:24,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 172 [2022-11-21 09:12:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:24,471 INFO L225 Difference]: With dead ends: 10465 [2022-11-21 09:12:24,471 INFO L226 Difference]: Without dead ends: 10463 [2022-11-21 09:12:24,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:24,478 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 2151 mSDsluCounter, 4448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 6674 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:24,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 6674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 09:12:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-11-21 09:12:25,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10463. [2022-11-21 09:12:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 7096 states have (on average 1.246617812852311) internal successors, (8846), 7318 states have internal predecessors, (8846), 2723 states have call successors, (2723), 646 states have call predecessors, (2723), 641 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-21 09:12:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 14290 transitions. [2022-11-21 09:12:25,374 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 14290 transitions. Word has length 172 [2022-11-21 09:12:25,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:25,375 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 14290 transitions. [2022-11-21 09:12:25,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-21 09:12:25,375 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 14290 transitions. [2022-11-21 09:12:25,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-21 09:12:25,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:25,382 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:25,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:25,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:25,605 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:25,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:25,606 INFO L85 PathProgramCache]: Analyzing trace with hash 910693266, now seen corresponding path program 1 times [2022-11-21 09:12:25,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:25,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366099893] [2022-11-21 09:12:25,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:25,607 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 [2022-11-21 09:12:25,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:25,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:25,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:26,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 09:12:26,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-21 09:12:28,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-21 09:12:29,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:29,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366099893] [2022-11-21 09:12:29,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366099893] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:29,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:29,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 09:12:29,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633058951] [2022-11-21 09:12:29,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:29,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:12:29,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:29,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:12:29,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:29,934 INFO L87 Difference]: Start difference. First operand 10463 states and 14290 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:31,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:31,440 INFO L93 Difference]: Finished difference Result 10469 states and 14295 transitions. [2022-11-21 09:12:31,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:12:31,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-11-21 09:12:31,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:31,493 INFO L225 Difference]: With dead ends: 10469 [2022-11-21 09:12:31,493 INFO L226 Difference]: Without dead ends: 10467 [2022-11-21 09:12:31,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:12:31,499 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2176 mSDsluCounter, 4447 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 6676 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:31,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 6676 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-11-21 09:12:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 10467. [2022-11-21 09:12:32,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10467 states, 7099 states have (on average 1.2465135934638683) internal successors, (8849), 7321 states have internal predecessors, (8849), 2723 states have call successors, (2723), 647 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-21 09:12:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10467 states to 10467 states and 14293 transitions. [2022-11-21 09:12:32,361 INFO L78 Accepts]: Start accepts. Automaton has 10467 states and 14293 transitions. Word has length 177 [2022-11-21 09:12:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:32,362 INFO L495 AbstractCegarLoop]: Abstraction has 10467 states and 14293 transitions. [2022-11-21 09:12:32,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 09:12:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 10467 states and 14293 transitions. [2022-11-21 09:12:32,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-21 09:12:32,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:32,369 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:32,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:32,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:32,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:32,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:32,584 INFO L85 PathProgramCache]: Analyzing trace with hash -2093563440, now seen corresponding path program 1 times [2022-11-21 09:12:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:32,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028218699] [2022-11-21 09:12:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:32,586 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 [2022-11-21 09:12:32,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:32,588 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:32,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:33,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 09:12:33,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-21 09:12:35,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-21 09:12:36,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:36,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028218699] [2022-11-21 09:12:36,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028218699] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:36,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:36,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 09:12:36,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406111209] [2022-11-21 09:12:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:36,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:12:36,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:36,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:12:36,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:36,916 INFO L87 Difference]: Start difference. First operand 10467 states and 14293 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-21 09:12:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:38,450 INFO L93 Difference]: Finished difference Result 10473 states and 14298 transitions. [2022-11-21 09:12:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:12:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2022-11-21 09:12:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:38,516 INFO L225 Difference]: With dead ends: 10473 [2022-11-21 09:12:38,517 INFO L226 Difference]: Without dead ends: 10469 [2022-11-21 09:12:38,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:12:38,524 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2148 mSDsluCounter, 4473 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:38,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 6702 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:38,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10469 states. [2022-11-21 09:12:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10469 to 10469. [2022-11-21 09:12:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 7101 states have (on average 1.2463033375580903) internal successors, (8850), 7322 states have internal predecessors, (8850), 2723 states have call successors, (2723), 648 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-21 09:12:39,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 14294 transitions. [2022-11-21 09:12:39,643 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 14294 transitions. Word has length 182 [2022-11-21 09:12:39,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:39,647 INFO L495 AbstractCegarLoop]: Abstraction has 10469 states and 14294 transitions. [2022-11-21 09:12:39,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-21 09:12:39,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 14294 transitions. [2022-11-21 09:12:39,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 09:12:39,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:39,654 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-11-21 09:12:39,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:39,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:39,867 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1882087954, now seen corresponding path program 1 times [2022-11-21 09:12:39,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:39,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597592597] [2022-11-21 09:12:39,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:39,869 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 [2022-11-21 09:12:39,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:39,870 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:39,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 09:12:40,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-21 09:12:43,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:12:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-21 09:12:44,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:44,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597592597] [2022-11-21 09:12:44,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597592597] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:44,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:44,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-21 09:12:44,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979392782] [2022-11-21 09:12:44,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:44,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:12:44,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:44,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:12:44,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:12:44,050 INFO L87 Difference]: Start difference. First operand 10469 states and 14294 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 09:12:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:45,711 INFO L93 Difference]: Finished difference Result 10469 states and 14294 transitions. [2022-11-21 09:12:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:12:45,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2022-11-21 09:12:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:45,768 INFO L225 Difference]: With dead ends: 10469 [2022-11-21 09:12:45,769 INFO L226 Difference]: Without dead ends: 10398 [2022-11-21 09:12:45,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:12:45,776 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 2172 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 6673 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:45,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 6673 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 09:12:45,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-11-21 09:12:46,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 10398. [2022-11-21 09:12:46,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10398 states, 7067 states have (on average 1.2457902929107119) internal successors, (8804), 7276 states have internal predecessors, (8804), 2692 states have call successors, (2692), 639 states have call predecessors, (2692), 637 states have return successors, (2694), 2672 states have call predecessors, (2694), 2692 states have call successors, (2694) [2022-11-21 09:12:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10398 states to 10398 states and 14190 transitions. [2022-11-21 09:12:46,933 INFO L78 Accepts]: Start accepts. Automaton has 10398 states and 14190 transitions. Word has length 187 [2022-11-21 09:12:46,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:46,934 INFO L495 AbstractCegarLoop]: Abstraction has 10398 states and 14190 transitions. [2022-11-21 09:12:46,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 09:12:46,934 INFO L276 IsEmpty]: Start isEmpty. Operand 10398 states and 14190 transitions. [2022-11-21 09:12:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-21 09:12:46,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:46,943 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:46,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-21 09:12:47,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:47,167 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:47,168 INFO L85 PathProgramCache]: Analyzing trace with hash -540522438, now seen corresponding path program 1 times [2022-11-21 09:12:47,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:47,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29079950] [2022-11-21 09:12:47,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:47,170 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 [2022-11-21 09:12:47,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:47,172 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:47,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:48,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:12:48,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-11-21 09:12:49,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:49,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:49,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29079950] [2022-11-21 09:12:49,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29079950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:49,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:49,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:49,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843917901] [2022-11-21 09:12:49,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:49,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:49,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:49,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:49,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:49,205 INFO L87 Difference]: Start difference. First operand 10398 states and 14190 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 09:12:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:51,040 INFO L93 Difference]: Finished difference Result 23826 states and 32552 transitions. [2022-11-21 09:12:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:51,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2022-11-21 09:12:51,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:51,123 INFO L225 Difference]: With dead ends: 23826 [2022-11-21 09:12:51,123 INFO L226 Difference]: Without dead ends: 14158 [2022-11-21 09:12:51,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:51,248 INFO L413 NwaCegarLoop]: 3715 mSDtfsCounter, 1542 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:51,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 5840 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 09:12:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14158 states. [2022-11-21 09:12:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14158 to 14152. [2022-11-21 09:12:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14152 states, 9645 states have (on average 1.2466562986003111) internal successors, (12024), 9926 states have internal predecessors, (12024), 3636 states have call successors, (3636), 871 states have call predecessors, (3636), 869 states have return successors, (3638), 3614 states have call predecessors, (3638), 3636 states have call successors, (3638) [2022-11-21 09:12:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14152 states to 14152 states and 19298 transitions. [2022-11-21 09:12:52,637 INFO L78 Accepts]: Start accepts. Automaton has 14152 states and 19298 transitions. Word has length 192 [2022-11-21 09:12:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:52,638 INFO L495 AbstractCegarLoop]: Abstraction has 14152 states and 19298 transitions. [2022-11-21 09:12:52,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 09:12:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 14152 states and 19298 transitions. [2022-11-21 09:12:52,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-21 09:12:52,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:52,659 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2022-11-21 09:12:52,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:52,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:52,885 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:52,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:52,885 INFO L85 PathProgramCache]: Analyzing trace with hash -980852503, now seen corresponding path program 1 times [2022-11-21 09:12:52,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:52,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800582486] [2022-11-21 09:12:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:52,887 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 [2022-11-21 09:12:52,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:52,889 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:52,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:54,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:12:54,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-21 09:12:54,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:54,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:54,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800582486] [2022-11-21 09:12:54,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800582486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:54,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:54,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:54,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730307826] [2022-11-21 09:12:54,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:54,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:54,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:54,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:54,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:54,620 INFO L87 Difference]: Start difference. First operand 14152 states and 19298 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-21 09:12:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:56,195 INFO L93 Difference]: Finished difference Result 31684 states and 43202 transitions. [2022-11-21 09:12:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:12:56,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2022-11-21 09:12:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:56,279 INFO L225 Difference]: With dead ends: 31684 [2022-11-21 09:12:56,279 INFO L226 Difference]: Without dead ends: 18262 [2022-11-21 09:12:56,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:56,424 INFO L413 NwaCegarLoop]: 3745 mSDtfsCounter, 1922 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:56,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 5526 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 09:12:56,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18262 states. [2022-11-21 09:12:57,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18262 to 18256. [2022-11-21 09:12:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18256 states, 12469 states have (on average 1.246130403400433) internal successors, (15538), 12826 states have internal predecessors, (15538), 4652 states have call successors, (4652), 1135 states have call predecessors, (4652), 1133 states have return successors, (4654), 4628 states have call predecessors, (4654), 4652 states have call successors, (4654) [2022-11-21 09:12:58,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18256 states to 18256 states and 24844 transitions. [2022-11-21 09:12:58,019 INFO L78 Accepts]: Start accepts. Automaton has 18256 states and 24844 transitions. Word has length 266 [2022-11-21 09:12:58,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:58,020 INFO L495 AbstractCegarLoop]: Abstraction has 18256 states and 24844 transitions. [2022-11-21 09:12:58,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-21 09:12:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 18256 states and 24844 transitions. [2022-11-21 09:12:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-21 09:12:58,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:58,038 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2022-11-21 09:12:58,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:58,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:12:58,251 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:12:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1640384025, now seen corresponding path program 1 times [2022-11-21 09:12:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:12:58,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248672609] [2022-11-21 09:12:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:58,254 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 [2022-11-21 09:12:58,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:12:58,255 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:12:58,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:12:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:59,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:12:59,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-21 09:12:59,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:59,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:12:59,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248672609] [2022-11-21 09:12:59,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248672609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:59,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:12:59,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:12:59,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152861290] [2022-11-21 09:12:59,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:59,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:12:59,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:12:59,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:12:59,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:12:59,742 INFO L87 Difference]: Start difference. First operand 18256 states and 24844 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-21 09:13:02,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:13:02,103 INFO L93 Difference]: Finished difference Result 39504 states and 53796 transitions. [2022-11-21 09:13:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:13:02,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2022-11-21 09:13:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:13:02,198 INFO L225 Difference]: With dead ends: 39504 [2022-11-21 09:13:02,199 INFO L226 Difference]: Without dead ends: 21978 [2022-11-21 09:13:02,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:13:02,256 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 1546 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:13:02,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 5866 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 09:13:02,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21978 states. [2022-11-21 09:13:03,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21978 to 21972. [2022-11-21 09:13:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21972 states, 15023 states have (on average 1.2470212341077016) internal successors, (18734), 15452 states have internal predecessors, (18734), 5584 states have call successors, (5584), 1365 states have call predecessors, (5584), 1363 states have return successors, (5586), 5558 states have call predecessors, (5586), 5584 states have call successors, (5586) [2022-11-21 09:13:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21972 states to 21972 states and 29904 transitions. [2022-11-21 09:13:03,882 INFO L78 Accepts]: Start accepts. Automaton has 21972 states and 29904 transitions. Word has length 266 [2022-11-21 09:13:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:13:03,883 INFO L495 AbstractCegarLoop]: Abstraction has 21972 states and 29904 transitions. [2022-11-21 09:13:03,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-21 09:13:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 21972 states and 29904 transitions. [2022-11-21 09:13:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-21 09:13:03,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:03,922 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:03,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-21 09:13:04,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:13:04,135 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:13:04,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash -377906483, now seen corresponding path program 1 times [2022-11-21 09:13:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:13:04,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444315718] [2022-11-21 09:13:04,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:04,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:13:04,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:13:04,139 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:13:04,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:13:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:05,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:13:05,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:13:05,633 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-21 09:13:05,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:13:05,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:13:05,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444315718] [2022-11-21 09:13:05,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444315718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:05,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:05,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:13:05,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985560283] [2022-11-21 09:13:05,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:05,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:13:05,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:13:05,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:13:05,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:13:05,636 INFO L87 Difference]: Start difference. First operand 21972 states and 29904 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-21 09:13:07,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:13:07,918 INFO L93 Difference]: Finished difference Result 46934 states and 63920 transitions. [2022-11-21 09:13:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:13:07,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 321 [2022-11-21 09:13:07,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:13:08,056 INFO L225 Difference]: With dead ends: 46934 [2022-11-21 09:13:08,057 INFO L226 Difference]: Without dead ends: 25692 [2022-11-21 09:13:08,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:13:08,147 INFO L413 NwaCegarLoop]: 3616 mSDtfsCounter, 1546 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:13:08,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 5747 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 09:13:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2022-11-21 09:13:10,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 25686. [2022-11-21 09:13:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25686 states, 17577 states have (on average 1.247653183137054) internal successors, (21930), 18078 states have internal predecessors, (21930), 6516 states have call successors, (6516), 1593 states have call predecessors, (6516), 1591 states have return successors, (6518), 6488 states have call predecessors, (6518), 6516 states have call successors, (6518) [2022-11-21 09:13:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25686 states to 25686 states and 34964 transitions. [2022-11-21 09:13:10,250 INFO L78 Accepts]: Start accepts. Automaton has 25686 states and 34964 transitions. Word has length 321 [2022-11-21 09:13:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:13:10,251 INFO L495 AbstractCegarLoop]: Abstraction has 25686 states and 34964 transitions. [2022-11-21 09:13:10,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-21 09:13:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 25686 states and 34964 transitions. [2022-11-21 09:13:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-21 09:13:10,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:10,279 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:10,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:13:10,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:13:10,495 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:13:10,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 281625039, now seen corresponding path program 1 times [2022-11-21 09:13:10,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:13:10,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934246613] [2022-11-21 09:13:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:10,498 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 [2022-11-21 09:13:10,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:13:10,499 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:13:10,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:13:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:11,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:13:11,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:13:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-21 09:13:12,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:13:12,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:13:12,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934246613] [2022-11-21 09:13:12,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934246613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:12,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:12,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:13:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020365326] [2022-11-21 09:13:12,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:12,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:13:12,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:13:12,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:13:12,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:13:12,061 INFO L87 Difference]: Start difference. First operand 25686 states and 34964 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-21 09:13:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:13:14,386 INFO L93 Difference]: Finished difference Result 54410 states and 74100 transitions. [2022-11-21 09:13:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:13:14,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 321 [2022-11-21 09:13:14,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:13:14,505 INFO L225 Difference]: With dead ends: 54410 [2022-11-21 09:13:14,505 INFO L226 Difference]: Without dead ends: 29454 [2022-11-21 09:13:14,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:13:14,579 INFO L413 NwaCegarLoop]: 3735 mSDtfsCounter, 1559 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 5867 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:13:14,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 5867 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 09:13:14,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29454 states. [2022-11-21 09:13:17,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29454 to 29448. [2022-11-21 09:13:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29448 states, 20171 states have (on average 1.2480293490654901) internal successors, (25174), 20744 states have internal predecessors, (25174), 7452 states have call successors, (7452), 1825 states have call predecessors, (7452), 1823 states have return successors, (7454), 7422 states have call predecessors, (7454), 7452 states have call successors, (7454) [2022-11-21 09:13:17,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29448 states to 29448 states and 40080 transitions. [2022-11-21 09:13:17,494 INFO L78 Accepts]: Start accepts. Automaton has 29448 states and 40080 transitions. Word has length 321 [2022-11-21 09:13:17,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:13:17,495 INFO L495 AbstractCegarLoop]: Abstraction has 29448 states and 40080 transitions. [2022-11-21 09:13:17,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-21 09:13:17,496 INFO L276 IsEmpty]: Start isEmpty. Operand 29448 states and 40080 transitions. [2022-11-21 09:13:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-11-21 09:13:17,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:17,678 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 11, 11, 8, 8, 8, 8, 8, 8, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:17,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:13:17,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:13:17,879 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:13:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash -171216220, now seen corresponding path program 1 times [2022-11-21 09:13:17,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:13:17,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627333589] [2022-11-21 09:13:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:17,881 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 [2022-11-21 09:13:17,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:13:17,882 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:13:17,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:13:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:19,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 09:13:19,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:13:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2022-11-21 09:13:20,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:13:20,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:13:20,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627333589] [2022-11-21 09:13:20,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627333589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:20,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:20,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:13:20,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872343561] [2022-11-21 09:13:20,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:20,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 09:13:20,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:13:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 09:13:20,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:13:20,625 INFO L87 Difference]: Start difference. First operand 29448 states and 40080 transitions. Second operand has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2022-11-21 09:13:46,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:13:46,576 INFO L93 Difference]: Finished difference Result 84812 states and 116340 transitions. [2022-11-21 09:13:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-21 09:13:46,577 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 362 [2022-11-21 09:13:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:13:46,914 INFO L225 Difference]: With dead ends: 84812 [2022-11-21 09:13:46,914 INFO L226 Difference]: Without dead ends: 56034 [2022-11-21 09:13:46,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2022-11-21 09:13:46,993 INFO L413 NwaCegarLoop]: 4139 mSDtfsCounter, 6637 mSDsluCounter, 35374 mSDsCounter, 0 mSdLazyCounter, 2654 mSolverCounterSat, 1598 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6654 SdHoareTripleChecker+Valid, 39513 SdHoareTripleChecker+Invalid, 4252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1598 IncrementalHoareTripleChecker+Valid, 2654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:13:46,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6654 Valid, 39513 Invalid, 4252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1598 Valid, 2654 Invalid, 0 Unknown, 0 Unchecked, 19.4s Time] [2022-11-21 09:13:47,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56034 states. [2022-11-21 09:13:51,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56034 to 49368. [2022-11-21 09:13:51,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49368 states, 33777 states have (on average 1.2483642715457264) internal successors, (42166), 34740 states have internal predecessors, (42166), 12550 states have call successors, (12550), 3041 states have call predecessors, (12550), 3039 states have return successors, (12552), 12492 states have call predecessors, (12552), 12550 states have call successors, (12552) [2022-11-21 09:13:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49368 states to 49368 states and 67268 transitions. [2022-11-21 09:13:51,365 INFO L78 Accepts]: Start accepts. Automaton has 49368 states and 67268 transitions. Word has length 362 [2022-11-21 09:13:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:13:51,366 INFO L495 AbstractCegarLoop]: Abstraction has 49368 states and 67268 transitions. [2022-11-21 09:13:51,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2022-11-21 09:13:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 49368 states and 67268 transitions. [2022-11-21 09:13:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-21 09:13:51,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:13:51,407 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 11, 11, 11, 9, 9, 9, 9, 9, 9, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:51,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-21 09:13:51,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:13:51,608 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 09:13:51,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:51,609 INFO L85 PathProgramCache]: Analyzing trace with hash -541102468, now seen corresponding path program 1 times [2022-11-21 09:13:51,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:13:51,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162663668] [2022-11-21 09:13:51,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:51,611 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 [2022-11-21 09:13:51,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:13:51,613 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 09:13:51,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a018e13d-0952-453c-afbf-d1bbedd38aeb/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:13:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:53,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 09:13:53,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:13:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-11-21 09:13:53,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:13:53,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:13:53,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162663668] [2022-11-21 09:13:53,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162663668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:53,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:53,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:13:53,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739065623] [2022-11-21 09:13:53,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:53,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 09:13:53,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:13:53,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:13:53,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:13:53,635 INFO L87 Difference]: Start difference. First operand 49368 states and 67268 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-21 09:13:57,533 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 []