./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN --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 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:56:54,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:56:54,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:56:54,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:56:54,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:56:54,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:56:54,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:56:54,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:56:54,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:56:54,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:56:54,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:56:54,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:56:54,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:56:54,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:56:54,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:56:54,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:56:54,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:56:54,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:56:54,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:56:54,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:56:54,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:56:54,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:56:54,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:56:54,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:56:54,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:56:54,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:56:54,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:56:54,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:56:54,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:56:54,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:56:54,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:56:54,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:56:54,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:56:54,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:56:54,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:56:54,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:56:54,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:56:54,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:56:54,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:56:54,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:56:54,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:56:54,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:56:55,036 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:56:55,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:56:55,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:56:55,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:56:55,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:56:55,039 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:56:55,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:56:55,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:56:55,041 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:56:55,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:56:55,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:56:55,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:56:55,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:56:55,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:56:55,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:56:55,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:56:55,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:56:55,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:56:55,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:56:55,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:56:55,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:56:55,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:55,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:56:55,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:56:55,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:56:55,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:56:55,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:56:55,047 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:56:55,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:56:55,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:56:55,048 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_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e [2022-11-20 11:56:55,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:56:55,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:56:55,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:56:55,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:56:55,386 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:56:55,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 11:56:59,250 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:57:00,502 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:57:00,503 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 11:57:00,602 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data/fb2199534/7b0b86ed82b04bc99045d93d4a7f8626/FLAG9b0dd05f1 [2022-11-20 11:57:00,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data/fb2199534/7b0b86ed82b04bc99045d93d4a7f8626 [2022-11-20 11:57:00,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:57:00,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:57:00,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:00,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:57:00,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:57:00,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:00" (1/1) ... [2022-11-20 11:57:00,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7d5967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:00, skipping insertion in model container [2022-11-20 11:57:00,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:00" (1/1) ... [2022-11-20 11:57:00,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:57:01,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:57:04,235 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 11:57:04,248 INFO L158 Benchmark]: Toolchain (without parser) took 3614.38ms. Allocated memory is still 207.6MB. Free memory was 132.5MB in the beginning and 142.2MB in the end (delta: -9.7MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-11-20 11:57:04,248 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 138.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:57:04,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3609.27ms. Allocated memory is still 207.6MB. Free memory was 132.5MB in the beginning and 142.2MB in the end (delta: -9.7MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-11-20 11:57:04,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 138.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3609.27ms. Allocated memory is still 207.6MB. Free memory was 132.5MB in the beginning and 142.2MB in the end (delta: -9.7MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN --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 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:57:07,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:57:07,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:57:07,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:57:07,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:57:07,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:57:07,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:57:07,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:57:07,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:57:07,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:57:07,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:57:07,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:57:07,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:57:07,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:57:07,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:57:07,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:57:07,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:57:07,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:57:07,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:57:07,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:57:07,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:57:07,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:57:07,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:57:07,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:57:07,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:57:07,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:57:07,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:57:07,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:57:07,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:57:07,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:57:07,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:57:07,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:57:07,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:57:07,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:57:07,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:57:07,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:57:07,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:57:07,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:57:07,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:57:07,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:57:07,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:57:07,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:57:07,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:57:07,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:57:07,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:57:07,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:57:07,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:57:07,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:57:07,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:57:07,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:57:07,328 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:57:07,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:57:07,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:57:07,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:57:07,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:57:07,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:57:07,330 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:57:07,330 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:57:07,330 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:57:07,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:57:07,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:57:07,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:57:07,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:57:07,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:57:07,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:57:07,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:57:07,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:57:07,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:57:07,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:57:07,333 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:57:07,333 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:57:07,334 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:57:07,334 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:57:07,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:57:07,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:57:07,335 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_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e [2022-11-20 11:57:07,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:57:07,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:57:07,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:57:07,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:57:07,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:57:07,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 11:57:11,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:57:13,086 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:57:13,087 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 11:57:13,267 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data/bf40ad49d/096093c5e4234127b70f276d463cc5ed/FLAG7ef4a1537 [2022-11-20 11:57:13,297 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/data/bf40ad49d/096093c5e4234127b70f276d463cc5ed [2022-11-20 11:57:13,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:57:13,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:57:13,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:13,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:57:13,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:57:13,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:13" (1/1) ... [2022-11-20 11:57:13,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0e1366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:13, skipping insertion in model container [2022-11-20 11:57:13,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:13" (1/1) ... [2022-11-20 11:57:13,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:57:13,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:57:25,998 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2022-11-20 11:57:26,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:26,972 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:57:27,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:57:28,223 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2022-11-20 11:57:28,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:28,389 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:57:29,362 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2022-11-20 11:57:29,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:30,247 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:57:30,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30 WrapperNode [2022-11-20 11:57:30,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:30,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:57:30,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:57:30,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:57:30,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:30,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:31,372 INFO L138 Inliner]: procedures = 992, calls = 8210, calls flagged for inlining = 435, calls inlined = 368, statements flattened = 16413 [2022-11-20 11:57:31,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:57:31,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:57:31,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:57:31,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:57:31,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:31,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:31,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:31,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:32,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:32,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:32,317 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:32,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:32,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:57:32,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:57:32,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:57:32,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:57:32,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (1/1) ... [2022-11-20 11:57:32,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:57:32,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:57:32,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:57:32,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:57:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-20 11:57:32,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-20 11:57:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 11:57:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 11:57:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2022-11-20 11:57:32,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2022-11-20 11:57:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_txskb [2022-11-20 11:57:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_txskb [2022-11-20 11:57:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure s6_to_int [2022-11-20 11:57:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_to_int [2022-11-20 11:57:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_urb_has_error [2022-11-20 11:57:32,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_urb_has_error [2022-11-20 11:57:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pad [2022-11-20 11:57:32,575 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pad [2022-11-20 11:57:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 11:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 11:57:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ampdu_factor [2022-11-20 11:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ampdu_factor [2022-11-20 11:57:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2022-11-20 11:57:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2022-11-20 11:57:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:57:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:57:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_clear [2022-11-20 11:57:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_clear [2022-11-20 11:57:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2022-11-20 11:57:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2022-11-20 11:57:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rmw [2022-11-20 11:57:32,580 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rmw [2022-11-20 11:57:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-11-20 11:57:32,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-11-20 11:57:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rmw [2022-11-20 11:57:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rmw [2022-11-20 11:57:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2022-11-20 11:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2022-11-20 11:57:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-20 11:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-20 11:57:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:57:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:57:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_bw_filter [2022-11-20 11:57:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_bw_filter [2022-11-20 11:57:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmc [2022-11-20 11:57:32,685 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmc [2022-11-20 11:57:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:57:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:57:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmw [2022-11-20 11:57:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmw [2022-11-20 11:57:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___1 [2022-11-20 11:57:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___1 [2022-11-20 11:57:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-11-20 11:57:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-11-20 11:57:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___2 [2022-11-20 11:57:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___2 [2022-11-20 11:57:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_add [2022-11-20 11:57:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_add [2022-11-20 11:57:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-20 11:57:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-20 11:57:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_single_wr [2022-11-20 11:57:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_single_wr [2022-11-20 11:57:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_raw_init [2022-11-20 11:57:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_raw_init [2022-11-20 11:57:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_rts_threshold [2022-11-20 11:57:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_rts_threshold [2022-11-20 11:57:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-20 11:57:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-20 11:57:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2022-11-20 11:57:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2022-11-20 11:57:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-20 11:57:32,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-20 11:57:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_config [2022-11-20 11:57:32,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_config [2022-11-20 11:57:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rr [2022-11-20 11:57:32,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rr [2022-11-20 11:57:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rr [2022-11-20 11:57:32,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rr [2022-11-20 11:57:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure s6_validate [2022-11-20 11:57:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_validate [2022-11-20 11:57:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 11:57:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 11:57:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_free_buf [2022-11-20 11:57:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_free_buf [2022-11-20 11:57:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:57:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:57:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure field_valid [2022-11-20 11:57:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure field_valid [2022-11-20 11:57:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:57:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:57:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:57:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:57:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure q2hwq [2022-11-20 11:57:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure q2hwq [2022-11-20 11:57:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-20 11:57:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-20 11:57:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2022-11-20 11:57:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2022-11-20 11:57:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-20 11:57:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-20 11:57:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-20 11:57:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-20 11:57:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:57:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:57:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_u32 [2022-11-20 11:57:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_u32 [2022-11-20 11:57:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_s6 [2022-11-20 11:57:32,693 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_s6 [2022-11-20 11:57:32,693 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_agc_default [2022-11-20 11:57:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_agc_default [2022-11-20 11:57:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_cleanup [2022-11-20 11:57:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_cleanup [2022-11-20 11:57:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-11-20 11:57:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-11-20 11:57:32,702 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_wr [2022-11-20 11:57:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_wr [2022-11-20 11:57:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2022-11-20 11:57:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2022-11-20 11:57:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:57:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:57:32,707 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_wr [2022-11-20 11:57:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_wr [2022-11-20 11:57:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 11:57:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 11:57:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:57:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:57:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 11:57:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 11:57:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:57:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_reg [2022-11-20 11:57:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_reg [2022-11-20 11:57:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-20 11:57:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-20 11:57:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-20 11:57:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-20 11:57:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 11:57:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 11:57:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 11:57:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_alloc_buf [2022-11-20 11:57:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_alloc_buf [2022-11-20 11:57:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-20 11:57:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-20 11:57:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 11:57:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 11:57:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-20 11:57:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-20 11:57:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:57:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:57:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 11:57:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 11:57:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:57:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:57:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_init_hardware [2022-11-20 11:57:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_init_hardware [2022-11-20 11:57:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 11:57:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 11:57:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_submit_rx_buf [2022-11-20 11:57:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_submit_rx_buf [2022-11-20 11:57:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-20 11:57:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-20 11:57:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-20 11:57:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-20 11:57:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:57:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 11:57:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 11:57:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 11:57:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 11:57:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:57:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure simple_attr_write [2022-11-20 11:57:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_attr_write [2022-11-20 11:57:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_remove_interface [2022-11-20 11:57:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_remove_interface [2022-11-20 11:57:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2022-11-20 11:57:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2022-11-20 11:57:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2022-11-20 11:57:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2022-11-20 11:57:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure trace_read_temp [2022-11-20 11:57:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_read_temp [2022-11-20 11:57:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_cmd_deinit [2022-11-20 11:57:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_cmd_deinit [2022-11-20 11:57:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 11:57:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 11:57:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-20 11:57:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-20 11:57:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-20 11:57:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-20 11:57:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 11:57:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 11:57:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_alloc [2022-11-20 11:57:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_alloc [2022-11-20 11:57:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-20 11:57:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-20 11:57:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 11:57:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 11:57:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vco_cal [2022-11-20 11:57:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vco_cal [2022-11-20 11:57:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2022-11-20 11:57:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2022-11-20 11:57:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-20 11:57:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-20 11:57:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___3 [2022-11-20 11:57:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___3 [2022-11-20 11:57:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___2 [2022-11-20 11:57:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___2 [2022-11-20 11:57:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___1 [2022-11-20 11:57:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___1 [2022-11-20 11:57:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___0 [2022-11-20 11:57:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___0 [2022-11-20 11:57:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 11:57:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 11:57:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___4 [2022-11-20 11:57:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___4 [2022-11-20 11:57:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 11:57:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 11:57:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-11-20 11:57:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-11-20 11:57:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rr [2022-11-20 11:57:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rr [2022-11-20 11:57:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:57:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:57:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-20 11:57:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-20 11:57:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ctrlch [2022-11-20 11:57:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ctrlch [2022-11-20 11:57:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 11:57:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 11:57:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:57:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_request [2022-11-20 11:57:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_request [2022-11-20 11:57:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:57:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_set [2022-11-20 11:57:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_set [2022-11-20 11:57:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:57:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:57:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2022-11-20 11:57:32,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2022-11-20 11:57:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:57:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:57:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx [2022-11-20 11:57:32,740 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx [2022-11-20 11:57:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_configure_filter [2022-11-20 11:57:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_configure_filter [2022-11-20 11:57:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr [2022-11-20 11:57:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr [2022-11-20 11:57:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2022-11-20 11:57:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2022-11-20 11:57:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-20 11:57:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-20 11:57:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_config_tsf [2022-11-20 11:57:32,749 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_config_tsf [2022-11-20 11:57:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-11-20 11:57:32,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-11-20 11:57:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_temp_comp [2022-11-20 11:57:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_temp_comp [2022-11-20 11:57:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rxdc_cal [2022-11-20 11:57:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rxdc_cal [2022-11-20 11:57:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure field_validate [2022-11-20 11:57:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure field_validate [2022-11-20 11:57:32,751 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2022-11-20 11:57:32,751 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2022-11-20 11:57:32,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2022-11-20 11:57:32,751 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_resume [2022-11-20 11:57:32,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_resume [2022-11-20 11:57:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-20 11:57:32,752 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-20 11:57:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-20 11:57:32,752 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-20 11:57:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:57:32,752 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:57:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:57:32,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:57:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-20 11:57:32,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-20 11:57:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 11:57:32,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 11:57:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 11:57:32,754 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 11:57:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:57:32,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:57:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_ampdu_action [2022-11-20 11:57:32,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_ampdu_action [2022-11-20 11:57:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-20 11:57:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-20 11:57:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_addr_wr [2022-11-20 11:57:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_addr_wr [2022-11-20 11:57:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_temp [2022-11-20 11:57:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_temp [2022-11-20 11:57:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_function_select [2022-11-20 11:57:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_function_select [2022-11-20 11:57:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-20 11:57:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-20 11:57:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_sta_rate_tbl_update [2022-11-20 11:57:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_sta_rate_tbl_update [2022-11-20 11:57:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_disconnect [2022-11-20 11:57:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_disconnect [2022-11-20 11:57:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-20 11:57:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-20 11:57:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_chip_onoff [2022-11-20 11:57:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_chip_onoff [2022-11-20 11:57:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_key [2022-11-20 11:57:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_key [2022-11-20 11:57:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:57:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:57:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___0 [2022-11-20 11:57:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___0 [2022-11-20 11:57:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___2 [2022-11-20 11:57:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___2 [2022-11-20 11:57:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___1 [2022-11-20 11:57:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___1 [2022-11-20 11:57:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-20 11:57:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-20 11:57:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_bw [2022-11-20 11:57:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_bw [2022-11-20 11:57:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_wcid_set_key [2022-11-20 11:57:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_wcid_set_key [2022-11-20 11:57:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:57:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_ctrlch [2022-11-20 11:57:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_ctrlch [2022-11-20 11:57:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:57:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:57:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:57:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:57:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_wr [2022-11-20 11:57:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_wr [2022-11-20 11:57:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure trace_raw_output_prep [2022-11-20 11:57:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_raw_output_prep [2022-11-20 11:57:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:57:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:57:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_efuse_read [2022-11-20 11:57:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_efuse_read [2022-11-20 11:57:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_cleanup [2022-11-20 11:57:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_cleanup [2022-11-20 11:57:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rr [2022-11-20 11:57:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rr [2022-11-20 11:57:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_queue_mapping [2022-11-20 11:57:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_queue_mapping [2022-11-20 11:57:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:57:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:57:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_tx_rate_val [2022-11-20 11:57:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_tx_rate_val [2022-11-20 11:57:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_pages [2022-11-20 11:57:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_pages [2022-11-20 11:57:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-20 11:57:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-20 11:57:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-20 11:57:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-20 11:57:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan_complete [2022-11-20 11:57:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan_complete [2022-11-20 11:57:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2022-11-20 11:57:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2022-11-20 11:57:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put_le32 [2022-11-20 11:57:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put_le32 [2022-11-20 11:57:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-20 11:57:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-20 11:57:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr_copy [2022-11-20 11:57:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr_copy [2022-11-20 11:57:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_add_interface [2022-11-20 11:57:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_add_interface [2022-11-20 11:57:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-20 11:57:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-20 11:57:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_submit_buf [2022-11-20 11:57:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_submit_buf [2022-11-20 11:57:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-20 11:57:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-20 11:57:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_fw [2022-11-20 11:57:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_fw [2022-11-20 11:57:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:57:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:57:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:57:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 11:57:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 11:57:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:57:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:57:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:57:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-20 11:57:32,772 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-20 11:57:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-20 11:57:32,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-20 11:57:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:57:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-20 11:57:32,773 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-20 11:57:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure lin2dBd [2022-11-20 11:57:32,773 INFO L138 BoogieDeclarations]: Found implementation of procedure lin2dBd [2022-11-20 11:57:32,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:57:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:57:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:57:32,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:57:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:57:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:57:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-20 11:57:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-20 11:57:32,779 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-20 11:57:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-20 11:57:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_to_usb_dev [2022-11-20 11:57:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_to_usb_dev [2022-11-20 11:57:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_r47_get [2022-11-20 11:57:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_r47_get [2022-11-20 11:57:32,780 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx_stat [2022-11-20 11:57:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx_stat [2022-11-20 11:57:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_notify [2022-11-20 11:57:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_notify [2022-11-20 11:57:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-20 11:57:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-20 11:57:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-20 11:57:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-20 11:57:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_conf_tx [2022-11-20 11:57:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_conf_tx [2022-11-20 11:57:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:57:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:57:32,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:57:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:57:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure trace_handle_return [2022-11-20 11:57:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_handle_return [2022-11-20 11:57:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_hdrlen_from_skb [2022-11-20 11:57:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_hdrlen_from_skb [2022-11-20 11:57:32,783 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_wcid_setup [2022-11-20 11:57:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_wcid_setup [2022-11-20 11:57:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-20 11:57:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-20 11:57:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 11:57:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 11:57:32,784 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_burst_write_regs [2022-11-20 11:57:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_burst_write_regs [2022-11-20 11:57:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2022-11-20 11:57:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2022-11-20 11:57:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___0 [2022-11-20 11:57:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___0 [2022-11-20 11:57:32,785 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-20 11:57:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-20 11:57:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-20 11:57:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-20 11:57:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:57:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:57:32,786 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-20 11:57:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-20 11:57:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:57:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:57:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:57:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2022-11-20 11:57:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2022-11-20 11:57:32,787 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_write_reg_pairs [2022-11-20 11:57:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_write_reg_pairs [2022-11-20 11:57:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-20 11:57:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-20 11:57:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_get_key_info [2022-11-20 11:57:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_get_key_info [2022-11-20 11:57:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-20 11:57:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-20 11:57:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-20 11:57:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-20 11:57:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_remove [2022-11-20 11:57:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_remove [2022-11-20 11:57:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 11:57:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 11:57:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bss_info_changed [2022-11-20 11:57:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bss_info_changed [2022-11-20 11:57:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2022-11-20 11:57:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2022-11-20 11:57:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:57:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:57:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-20 11:57:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-20 11:57:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wait_asic_ready [2022-11-20 11:57:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wait_asic_ready [2022-11-20 11:57:32,791 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-20 11:57:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-20 11:57:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan [2022-11-20 11:57:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan [2022-11-20 11:57:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 11:57:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 11:57:32,792 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 11:57:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 11:57:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_calibrate [2022-11-20 11:57:32,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_calibrate [2022-11-20 11:57:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_send [2022-11-20 11:57:32,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_send [2022-11-20 11:57:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure firmware_running [2022-11-20 11:57:32,793 INFO L138 BoogieDeclarations]: Found implementation of procedure firmware_running [2022-11-20 11:57:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rmw [2022-11-20 11:57:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rmw [2022-11-20 11:57:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll [2022-11-20 11:57:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll [2022-11-20 11:57:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 11:57:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 11:57:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_power_rate [2022-11-20 11:57:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_power_rate [2022-11-20 11:57:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 11:57:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 11:57:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_has_tssi [2022-11-20 11:57:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_has_tssi [2022-11-20 11:57:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll_msec [2022-11-20 11:57:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll_msec [2022-11-20 11:57:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-20 11:57:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-20 11:57:35,253 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:57:35,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:57:35,582 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:00:22,286 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:00:22,335 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:00:22,335 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:00:22,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:22 BoogieIcfgContainer [2022-11-20 12:00:22,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:00:22,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:00:22,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:00:22,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:00:22,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:57:13" (1/3) ... [2022-11-20 12:00:22,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322eb608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:00:22, skipping insertion in model container [2022-11-20 12:00:22,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:30" (2/3) ... [2022-11-20 12:00:22,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322eb608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:00:22, skipping insertion in model container [2022-11-20 12:00:22,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:22" (3/3) ... [2022-11-20 12:00:22,360 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 12:00:22,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:00:22,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:00:22,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:00:22,602 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;@5fabf180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:00:22,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:00:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 5361 states, 3588 states have (on average 1.3664994425863992) internal successors, (4903), 3752 states have internal predecessors, (4903), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) [2022-11-20 12:00:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 12:00:22,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:22,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:22,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:22,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2125104692, now seen corresponding path program 1 times [2022-11-20 12:00:22,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:00:22,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37272966] [2022-11-20 12:00:22,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:22,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:22,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:00:22,746 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:00:22,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:00:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:48,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 8230 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:00:48,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:00:48,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:00:48,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:00:48,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37272966] [2022-11-20 12:00:48,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37272966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:48,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:48,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:00:48,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144404059] [2022-11-20 12:00:48,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:48,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:00:48,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:00:48,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:00:48,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:00:48,584 INFO L87 Difference]: Start difference. First operand has 5361 states, 3588 states have (on average 1.3664994425863992) internal successors, (4903), 3752 states have internal predecessors, (4903), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:00:49,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:49,188 INFO L93 Difference]: Finished difference Result 10717 states and 16427 transitions. [2022-11-20 12:00:49,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:00:49,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2022-11-20 12:00:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:00:49,272 INFO L225 Difference]: With dead ends: 10717 [2022-11-20 12:00:49,273 INFO L226 Difference]: Without dead ends: 5307 [2022-11-20 12:00:49,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:00:49,360 INFO L413 NwaCegarLoop]: 7923 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7923 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:00:49,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7923 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:00:49,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2022-11-20 12:00:49,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 5307. [2022-11-20 12:00:49,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 3575 states have (on average 1.353846153846154) internal successors, (4840), 3698 states have internal predecessors, (4840), 1501 states have call successors, (1501), 231 states have call predecessors, (1501), 230 states have return successors, (1483), 1479 states have call predecessors, (1483), 1483 states have call successors, (1483) [2022-11-20 12:00:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 7824 transitions. [2022-11-20 12:00:49,837 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 7824 transitions. Word has length 69 [2022-11-20 12:00:49,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:49,838 INFO L495 AbstractCegarLoop]: Abstraction has 5307 states and 7824 transitions. [2022-11-20 12:00:49,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:00:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 7824 transitions. [2022-11-20 12:00:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 12:00:49,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:49,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:50,066 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Forcibly destroying the process [2022-11-20 12:00:50,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:50,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:50,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:00:50,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:50,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1736133518, now seen corresponding path program 1 times [2022-11-20 12:00:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:00:50,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387865418] [2022-11-20 12:00:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:50,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:00:50,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:00:50,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:00:50,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:01:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:15,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 8230 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:01:15,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:01:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:01:15,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:01:15,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:01:15,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387865418] [2022-11-20 12:01:15,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387865418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:01:15,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:01:15,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:01:15,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317863705] [2022-11-20 12:01:15,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:01:15,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:01:15,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:01:15,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:01:15,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:01:15,928 INFO L87 Difference]: Start difference. First operand 5307 states and 7824 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:01:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:01:24,542 INFO L93 Difference]: Finished difference Result 10614 states and 15786 transitions. [2022-11-20 12:01:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:01:24,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2022-11-20 12:01:24,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:01:24,592 INFO L225 Difference]: With dead ends: 10614 [2022-11-20 12:01:24,593 INFO L226 Difference]: Without dead ends: 5308 [2022-11-20 12:01:24,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:01:24,642 INFO L413 NwaCegarLoop]: 7767 mSDtfsCounter, 6 mSDsluCounter, 30944 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 38711 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:01:24,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 38711 Invalid, 464 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [60 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-20 12:01:24,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2022-11-20 12:01:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5308. [2022-11-20 12:01:24,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 3576 states have (on average 1.3537472035794182) internal successors, (4841), 3699 states have internal predecessors, (4841), 1501 states have call successors, (1501), 231 states have call predecessors, (1501), 230 states have return successors, (1483), 1479 states have call predecessors, (1483), 1483 states have call successors, (1483) [2022-11-20 12:01:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 7825 transitions. [2022-11-20 12:01:24,929 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 7825 transitions. Word has length 69 [2022-11-20 12:01:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:01:24,931 INFO L495 AbstractCegarLoop]: Abstraction has 5308 states and 7825 transitions. [2022-11-20 12:01:24,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 12:01:24,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 7825 transitions. [2022-11-20 12:01:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 12:01:24,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:01:24,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:01:25,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-20 12:01:25,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:25,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:01:25,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:01:25,151 INFO L85 PathProgramCache]: Analyzing trace with hash -25417486, now seen corresponding path program 1 times [2022-11-20 12:01:25,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:01:25,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19764967] [2022-11-20 12:01:25,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:01:25,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:01:25,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:01:25,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:01:25,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:01:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:01:50,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 8241 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:01:50,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:01:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:01:51,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:01:54,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:01:54,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:01:54,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19764967] [2022-11-20 12:01:54,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19764967] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:01:54,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:01:54,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 12:01:54,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204211517] [2022-11-20 12:01:54,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:01:54,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:01:54,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:01:54,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:01:54,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:01:54,223 INFO L87 Difference]: Start difference. First operand 5308 states and 7825 transitions. Second operand has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 12:02:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:02,746 INFO L93 Difference]: Finished difference Result 10626 states and 15802 transitions. [2022-11-20 12:02:02,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:02:02,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2022-11-20 12:02:02,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:02,792 INFO L225 Difference]: With dead ends: 10626 [2022-11-20 12:02:02,792 INFO L226 Difference]: Without dead ends: 5324 [2022-11-20 12:02:02,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:02:02,837 INFO L413 NwaCegarLoop]: 7770 mSDtfsCounter, 15 mSDsluCounter, 30997 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 38767 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:02,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 38767 Invalid, 502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [97 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-20 12:02:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2022-11-20 12:02:03,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 5324. [2022-11-20 12:02:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5324 states, 3587 states have (on average 1.3529411764705883) internal successors, (4853), 3710 states have internal predecessors, (4853), 1503 states have call successors, (1503), 234 states have call predecessors, (1503), 233 states have return successors, (1485), 1481 states have call predecessors, (1485), 1485 states have call successors, (1485) [2022-11-20 12:02:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5324 states to 5324 states and 7841 transitions. [2022-11-20 12:02:03,321 INFO L78 Accepts]: Start accepts. Automaton has 5324 states and 7841 transitions. Word has length 70 [2022-11-20 12:02:03,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:03,324 INFO L495 AbstractCegarLoop]: Abstraction has 5324 states and 7841 transitions. [2022-11-20 12:02:03,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 11 states have internal predecessors, (65), 4 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-20 12:02:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5324 states and 7841 transitions. [2022-11-20 12:02:03,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 12:02:03,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:03,331 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 12:02:03,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 12:02:03,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:03,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:03,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:03,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1467171954, now seen corresponding path program 2 times [2022-11-20 12:02:03,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:03,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154674794] [2022-11-20 12:02:03,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:02:03,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:03,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:03,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:03,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:02:27,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:02:27,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:02:28,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 8230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:02:28,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:02:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:02:29,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:02:29,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:02:29,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154674794] [2022-11-20 12:02:29,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154674794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:02:29,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:02:29,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:02:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688253665] [2022-11-20 12:02:29,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:02:29,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:02:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:02:29,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:02:29,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:02:29,296 INFO L87 Difference]: Start difference. First operand 5324 states and 7841 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 12:02:31,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:02:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:02:32,540 INFO L93 Difference]: Finished difference Result 15859 states and 23374 transitions. [2022-11-20 12:02:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:02:32,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2022-11-20 12:02:32,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:02:32,667 INFO L225 Difference]: With dead ends: 15859 [2022-11-20 12:02:32,667 INFO L226 Difference]: Without dead ends: 10546 [2022-11-20 12:02:32,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:02:32,706 INFO L413 NwaCegarLoop]: 9298 mSDtfsCounter, 7667 mSDsluCounter, 7802 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7667 SdHoareTripleChecker+Valid, 17100 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:02:32,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7667 Valid, 17100 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 12:02:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10546 states. [2022-11-20 12:02:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10546 to 10534. [2022-11-20 12:02:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10534 states, 7104 states have (on average 1.3547297297297298) internal successors, (9624), 7333 states have internal predecessors, (9624), 2963 states have call successors, (2963), 467 states have call predecessors, (2963), 466 states have return successors, (2945), 2937 states have call predecessors, (2945), 2945 states have call successors, (2945) [2022-11-20 12:02:33,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10534 states to 10534 states and 15532 transitions. [2022-11-20 12:02:33,573 INFO L78 Accepts]: Start accepts. Automaton has 10534 states and 15532 transitions. Word has length 71 [2022-11-20 12:02:33,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:02:33,574 INFO L495 AbstractCegarLoop]: Abstraction has 10534 states and 15532 transitions. [2022-11-20 12:02:33,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 12:02:33,574 INFO L276 IsEmpty]: Start isEmpty. Operand 10534 states and 15532 transitions. [2022-11-20 12:02:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-20 12:02:33,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:02:33,579 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 12:02:33,796 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Forcibly destroying the process [2022-11-20 12:02:33,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:02:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:33,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:02:33,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:02:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1983088249, now seen corresponding path program 1 times [2022-11-20 12:02:33,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:02:33,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551269873] [2022-11-20 12:02:33,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:02:33,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:02:33,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:02:33,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:02:33,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:02:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:02:59,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 8323 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:02:59,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:03:00,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:03:03,743 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:03:03,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:03:03,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551269873] [2022-11-20 12:03:03,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551269873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:03:03,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:03:03,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 12:03:03,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653940302] [2022-11-20 12:03:03,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:03:03,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:03:03,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:03:03,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:03:03,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:03:03,747 INFO L87 Difference]: Start difference. First operand 10534 states and 15532 transitions. Second operand has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 12:03:14,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:14,240 INFO L93 Difference]: Finished difference Result 21092 states and 31371 transitions. [2022-11-20 12:03:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:03:14,243 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 90 [2022-11-20 12:03:14,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:14,322 INFO L225 Difference]: With dead ends: 21092 [2022-11-20 12:03:14,322 INFO L226 Difference]: Without dead ends: 10558 [2022-11-20 12:03:14,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:03:14,394 INFO L413 NwaCegarLoop]: 7771 mSDtfsCounter, 22 mSDsluCounter, 38760 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 46531 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:14,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 46531 Invalid, 605 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [102 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-20 12:03:14,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10558 states. [2022-11-20 12:03:15,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10558 to 10558. [2022-11-20 12:03:15,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10558 states, 7122 states have (on average 1.3543948329121034) internal successors, (9646), 7351 states have internal predecessors, (9646), 2965 states have call successors, (2965), 471 states have call predecessors, (2965), 470 states have return successors, (2947), 2939 states have call predecessors, (2947), 2947 states have call successors, (2947) [2022-11-20 12:03:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10558 states to 10558 states and 15558 transitions. [2022-11-20 12:03:15,260 INFO L78 Accepts]: Start accepts. Automaton has 10558 states and 15558 transitions. Word has length 90 [2022-11-20 12:03:15,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:15,261 INFO L495 AbstractCegarLoop]: Abstraction has 10558 states and 15558 transitions. [2022-11-20 12:03:15,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 12:03:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 10558 states and 15558 transitions. [2022-11-20 12:03:15,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 12:03:15,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:03:15,273 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:03:15,499 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Forcibly destroying the process [2022-11-20 12:03:15,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:03:15,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:03:15,525 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:03:15,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash 470409721, now seen corresponding path program 2 times [2022-11-20 12:03:15,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:03:15,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003423439] [2022-11-20 12:03:15,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:03:15,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:03:15,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:03:15,544 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:03:15,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:03:39,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:03:39,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:03:40,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 8073 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:03:40,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:03:43,116 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 12:03:43,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:03:43,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:03:43,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003423439] [2022-11-20 12:03:43,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003423439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:03:43,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:03:43,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:03:43,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247431312] [2022-11-20 12:03:43,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:03:43,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:03:43,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:03:43,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:03:43,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:03:43,119 INFO L87 Difference]: Start difference. First operand 10558 states and 15558 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:03:43,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:03:43,661 INFO L93 Difference]: Finished difference Result 13742 states and 20112 transitions. [2022-11-20 12:03:43,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:03:43,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 91 [2022-11-20 12:03:43,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:03:43,748 INFO L225 Difference]: With dead ends: 13742 [2022-11-20 12:03:43,748 INFO L226 Difference]: Without dead ends: 13730 [2022-11-20 12:03:43,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:03:43,760 INFO L413 NwaCegarLoop]: 8908 mSDtfsCounter, 7568 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7568 SdHoareTripleChecker+Valid, 11356 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:03:43,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7568 Valid, 11356 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:03:43,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13730 states. [2022-11-20 12:03:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13730 to 13722. [2022-11-20 12:03:44,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13722 states, 9274 states have (on average 1.3557256847099417) internal successors, (12573), 9607 states have internal predecessors, (12573), 3767 states have call successors, (3767), 681 states have call predecessors, (3767), 680 states have return successors, (3751), 3739 states have call predecessors, (3751), 3751 states have call successors, (3751) [2022-11-20 12:03:44,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13722 states to 13722 states and 20091 transitions. [2022-11-20 12:03:44,849 INFO L78 Accepts]: Start accepts. Automaton has 13722 states and 20091 transitions. Word has length 91 [2022-11-20 12:03:44,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:03:44,850 INFO L495 AbstractCegarLoop]: Abstraction has 13722 states and 20091 transitions. [2022-11-20 12:03:44,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:03:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 13722 states and 20091 transitions. [2022-11-20 12:03:44,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-20 12:03:44,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:03:44,856 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:03:45,057 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Forcibly destroying the process [2022-11-20 12:03:45,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:03:45,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:03:45,082 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:03:45,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:45,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1695292106, now seen corresponding path program 1 times [2022-11-20 12:03:45,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:03:45,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316496596] [2022-11-20 12:03:45,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:03:45,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:03:45,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:03:45,096 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:03:45,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:04:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:10,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 8335 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:04:10,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:04:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:11,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:04:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 12:04:16,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:04:16,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316496596] [2022-11-20 12:04:16,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316496596] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:04:16,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:04:16,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 12:04:16,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591934383] [2022-11-20 12:04:16,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:04:16,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:04:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:04:16,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:04:16,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:04:16,410 INFO L87 Difference]: Start difference. First operand 13722 states and 20091 transitions. Second operand has 15 states, 13 states have (on average 6.384615384615385) internal successors, (83), 15 states have internal predecessors, (83), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 12:04:30,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:04:30,599 INFO L93 Difference]: Finished difference Result 27462 states and 40493 transitions. [2022-11-20 12:04:30,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:04:30,600 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.384615384615385) internal successors, (83), 15 states have internal predecessors, (83), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 92 [2022-11-20 12:04:30,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:04:30,688 INFO L225 Difference]: With dead ends: 27462 [2022-11-20 12:04:30,688 INFO L226 Difference]: Without dead ends: 13726 [2022-11-20 12:04:30,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:04:30,771 INFO L413 NwaCegarLoop]: 7768 mSDtfsCounter, 31 mSDsluCounter, 54154 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 61922 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:04:30,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 61922 Invalid, 844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2022-11-20 12:04:30,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13726 states. [2022-11-20 12:04:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13726 to 13726. [2022-11-20 12:04:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13726 states, 9278 states have (on average 1.355572321621039) internal successors, (12577), 9611 states have internal predecessors, (12577), 3767 states have call successors, (3767), 681 states have call predecessors, (3767), 680 states have return successors, (3751), 3739 states have call predecessors, (3751), 3751 states have call successors, (3751) [2022-11-20 12:04:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13726 states to 13726 states and 20095 transitions. [2022-11-20 12:04:31,856 INFO L78 Accepts]: Start accepts. Automaton has 13726 states and 20095 transitions. Word has length 92 [2022-11-20 12:04:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:04:31,856 INFO L495 AbstractCegarLoop]: Abstraction has 13726 states and 20095 transitions. [2022-11-20 12:04:31,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.384615384615385) internal successors, (83), 15 states have internal predecessors, (83), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 12:04:31,857 INFO L276 IsEmpty]: Start isEmpty. Operand 13726 states and 20095 transitions. [2022-11-20 12:04:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 12:04:31,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:04:31,861 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 12:04:32,085 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Forcibly destroying the process [2022-11-20 12:04:32,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:04:32,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:32,109 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:04:32,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:32,110 INFO L85 PathProgramCache]: Analyzing trace with hash -289827254, now seen corresponding path program 2 times [2022-11-20 12:04:32,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:04:32,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154084321] [2022-11-20 12:04:32,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:04:32,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:04:32,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:04:32,128 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:04:32,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:04:56,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:04:56,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:04:57,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 8074 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:04:57,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:04:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 12:04:59,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:04:59,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:04:59,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154084321] [2022-11-20 12:04:59,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154084321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:59,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:59,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:04:59,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123911180] [2022-11-20 12:04:59,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:59,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:59,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:04:59,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:59,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:59,579 INFO L87 Difference]: Start difference. First operand 13726 states and 20095 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:05:00,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:00,211 INFO L93 Difference]: Finished difference Result 13728 states and 20096 transitions. [2022-11-20 12:05:00,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:00,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 93 [2022-11-20 12:05:00,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:00,293 INFO L225 Difference]: With dead ends: 13728 [2022-11-20 12:05:00,294 INFO L226 Difference]: Without dead ends: 13725 [2022-11-20 12:05:00,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:00,304 INFO L413 NwaCegarLoop]: 7817 mSDtfsCounter, 7744 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7744 SdHoareTripleChecker+Valid, 7817 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:00,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7744 Valid, 7817 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:05:00,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13725 states. [2022-11-20 12:05:01,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13725 to 13725. [2022-11-20 12:05:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13725 states, 9278 states have (on average 1.3554645397715024) internal successors, (12576), 9610 states have internal predecessors, (12576), 3766 states have call successors, (3766), 681 states have call predecessors, (3766), 680 states have return successors, (3751), 3739 states have call predecessors, (3751), 3751 states have call successors, (3751) [2022-11-20 12:05:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13725 states to 13725 states and 20093 transitions. [2022-11-20 12:05:01,468 INFO L78 Accepts]: Start accepts. Automaton has 13725 states and 20093 transitions. Word has length 93 [2022-11-20 12:05:01,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:01,470 INFO L495 AbstractCegarLoop]: Abstraction has 13725 states and 20093 transitions. [2022-11-20 12:05:01,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:05:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 13725 states and 20093 transitions. [2022-11-20 12:05:01,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 12:05:01,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:01,476 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 12:05:01,702 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Forcibly destroying the process [2022-11-20 12:05:01,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:01,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:05:01,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:01,719 INFO L85 PathProgramCache]: Analyzing trace with hash -397212772, now seen corresponding path program 1 times [2022-11-20 12:05:01,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:05:01,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751431466] [2022-11-20 12:05:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:01,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:05:01,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:05:01,737 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:05:01,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:05:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:28,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 8347 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:05:28,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 12:05:30,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:30,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:05:30,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751431466] [2022-11-20 12:05:30,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751431466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:30,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:30,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:05:30,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759242184] [2022-11-20 12:05:30,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:30,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:05:30,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:05:30,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:05:30,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:30,642 INFO L87 Difference]: Start difference. First operand 13725 states and 20093 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:05:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:31,221 INFO L93 Difference]: Finished difference Result 13727 states and 20094 transitions. [2022-11-20 12:05:31,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:31,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 94 [2022-11-20 12:05:31,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:31,293 INFO L225 Difference]: With dead ends: 13727 [2022-11-20 12:05:31,293 INFO L226 Difference]: Without dead ends: 13724 [2022-11-20 12:05:31,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:31,303 INFO L413 NwaCegarLoop]: 7815 mSDtfsCounter, 7741 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7741 SdHoareTripleChecker+Valid, 7815 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:31,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7741 Valid, 7815 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:05:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13724 states. [2022-11-20 12:05:32,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13724 to 13724. [2022-11-20 12:05:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13724 states, 9278 states have (on average 1.3553567579219659) internal successors, (12575), 9609 states have internal predecessors, (12575), 3765 states have call successors, (3765), 681 states have call predecessors, (3765), 680 states have return successors, (3751), 3739 states have call predecessors, (3751), 3751 states have call successors, (3751) [2022-11-20 12:05:32,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13724 states to 13724 states and 20091 transitions. [2022-11-20 12:05:32,331 INFO L78 Accepts]: Start accepts. Automaton has 13724 states and 20091 transitions. Word has length 94 [2022-11-20 12:05:32,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:32,332 INFO L495 AbstractCegarLoop]: Abstraction has 13724 states and 20091 transitions. [2022-11-20 12:05:32,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:05:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 13724 states and 20091 transitions. [2022-11-20 12:05:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 12:05:32,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:32,337 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 12:05:32,552 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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)] Forcibly destroying the process [2022-11-20 12:05:32,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:05:32,552 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash 568808333, now seen corresponding path program 1 times [2022-11-20 12:05:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:05:32,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:32,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434250790] [2022-11-20 12:05:32,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:32,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:05:32,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:05:32,577 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:05:32,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:05:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:56,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 8348 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:05:56,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 12:05:58,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:58,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:05:58,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434250790] [2022-11-20 12:05:58,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434250790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:58,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:58,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:05:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969403118] [2022-11-20 12:05:58,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:58,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:05:58,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:05:58,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:05:58,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:58,356 INFO L87 Difference]: Start difference. First operand 13724 states and 20091 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:05:59,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:59,016 INFO L93 Difference]: Finished difference Result 13726 states and 20092 transitions. [2022-11-20 12:05:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:59,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 95 [2022-11-20 12:05:59,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:59,080 INFO L225 Difference]: With dead ends: 13726 [2022-11-20 12:05:59,080 INFO L226 Difference]: Without dead ends: 13723 [2022-11-20 12:05:59,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:59,090 INFO L413 NwaCegarLoop]: 7813 mSDtfsCounter, 7738 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7738 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:59,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7738 Valid, 7813 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:05:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13723 states. [2022-11-20 12:06:00,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13723 to 13723. [2022-11-20 12:06:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13723 states, 9278 states have (on average 1.3552489760724293) internal successors, (12574), 9608 states have internal predecessors, (12574), 3764 states have call successors, (3764), 681 states have call predecessors, (3764), 680 states have return successors, (3751), 3739 states have call predecessors, (3751), 3751 states have call successors, (3751) [2022-11-20 12:06:00,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13723 states to 13723 states and 20089 transitions. [2022-11-20 12:06:00,396 INFO L78 Accepts]: Start accepts. Automaton has 13723 states and 20089 transitions. Word has length 95 [2022-11-20 12:06:00,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:00,396 INFO L495 AbstractCegarLoop]: Abstraction has 13723 states and 20089 transitions. [2022-11-20 12:06:00,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:06:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 13723 states and 20089 transitions. [2022-11-20 12:06:00,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-20 12:06:00,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:00,405 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 12:06:00,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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 [2022-11-20 12:06:00,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:00,610 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:00,610 INFO L85 PathProgramCache]: Analyzing trace with hash 450696383, now seen corresponding path program 1 times [2022-11-20 12:06:00,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:00,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419497294] [2022-11-20 12:06:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:00,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:00,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:00,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:00,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 12:06:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:24,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 8349 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:06:24,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 12:06:26,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:26,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:26,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419497294] [2022-11-20 12:06:26,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419497294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:26,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:26,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:06:26,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787145453] [2022-11-20 12:06:26,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:26,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:06:26,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:06:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:26,411 INFO L87 Difference]: Start difference. First operand 13723 states and 20089 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:06:27,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:27,438 INFO L93 Difference]: Finished difference Result 17576 states and 25520 transitions. [2022-11-20 12:06:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:06:27,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 96 [2022-11-20 12:06:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:27,516 INFO L225 Difference]: With dead ends: 17576 [2022-11-20 12:06:27,516 INFO L226 Difference]: Without dead ends: 17564 [2022-11-20 12:06:27,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:27,527 INFO L413 NwaCegarLoop]: 8963 mSDtfsCounter, 7147 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7147 SdHoareTripleChecker+Valid, 12159 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:27,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7147 Valid, 12159 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:06:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17564 states. [2022-11-20 12:06:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17564 to 17555. [2022-11-20 12:06:28,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17555 states, 11920 states have (on average 1.3564597315436242) internal successors, (16169), 12364 states have internal predecessors, (16169), 4670 states have call successors, (4670), 965 states have call predecessors, (4670), 964 states have return successors, (4659), 4643 states have call predecessors, (4659), 4659 states have call successors, (4659) [2022-11-20 12:06:29,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17555 states to 17555 states and 25498 transitions. [2022-11-20 12:06:29,069 INFO L78 Accepts]: Start accepts. Automaton has 17555 states and 25498 transitions. Word has length 96 [2022-11-20 12:06:29,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:29,069 INFO L495 AbstractCegarLoop]: Abstraction has 17555 states and 25498 transitions. [2022-11-20 12:06:29,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:06:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand 17555 states and 25498 transitions. [2022-11-20 12:06:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-20 12:06:29,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:29,073 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 12:06:29,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:29,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:29,274 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:29,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:29,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1084198096, now seen corresponding path program 1 times [2022-11-20 12:06:29,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:29,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444376823] [2022-11-20 12:06:29,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:29,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:29,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:29,284 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:29,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 12:06:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:52,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 8350 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:06:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 12:06:54,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:54,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:54,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444376823] [2022-11-20 12:06:54,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444376823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:54,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:54,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:06:54,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660105233] [2022-11-20 12:06:54,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:54,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:06:54,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:54,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:06:54,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:54,620 INFO L87 Difference]: Start difference. First operand 17555 states and 25498 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:06:55,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:55,924 INFO L93 Difference]: Finished difference Result 21875 states and 31574 transitions. [2022-11-20 12:06:55,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:06:55,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 97 [2022-11-20 12:06:55,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:56,009 INFO L225 Difference]: With dead ends: 21875 [2022-11-20 12:06:56,009 INFO L226 Difference]: Without dead ends: 21863 [2022-11-20 12:06:56,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:56,018 INFO L413 NwaCegarLoop]: 8105 mSDtfsCounter, 7473 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7473 SdHoareTripleChecker+Valid, 9797 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:56,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7473 Valid, 9797 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:06:56,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21863 states. [2022-11-20 12:06:58,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21863 to 21857. [2022-11-20 12:06:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21857 states, 14988 states have (on average 1.364825193488124) internal successors, (20456), 15542 states have internal predecessors, (20456), 5552 states have call successors, (5552), 1317 states have call predecessors, (5552), 1316 states have return successors, (5543), 5523 states have call predecessors, (5543), 5543 states have call successors, (5543) [2022-11-20 12:06:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21857 states to 21857 states and 31551 transitions. [2022-11-20 12:06:58,253 INFO L78 Accepts]: Start accepts. Automaton has 21857 states and 31551 transitions. Word has length 97 [2022-11-20 12:06:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:58,253 INFO L495 AbstractCegarLoop]: Abstraction has 21857 states and 31551 transitions. [2022-11-20 12:06:58,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:06:58,269 INFO L276 IsEmpty]: Start isEmpty. Operand 21857 states and 31551 transitions. [2022-11-20 12:06:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 12:06:58,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:58,277 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 12:06:58,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:58,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:58,478 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:58,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:58,478 INFO L85 PathProgramCache]: Analyzing trace with hash -752080414, now seen corresponding path program 1 times [2022-11-20 12:06:58,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:58,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208076447] [2022-11-20 12:06:58,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:58,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:58,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:58,488 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:58,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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 [2022-11-20 12:07:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:22,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 8351 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:07:22,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 12:07:24,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:07:24,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:07:24,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208076447] [2022-11-20 12:07:24,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208076447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:24,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:07:24,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:07:24,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282401674] [2022-11-20 12:07:24,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:24,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:07:24,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:07:24,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:07:24,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:07:24,912 INFO L87 Difference]: Start difference. First operand 21857 states and 31551 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:07:26,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:07:26,672 INFO L93 Difference]: Finished difference Result 24963 states and 35741 transitions. [2022-11-20 12:07:26,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:07:26,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 98 [2022-11-20 12:07:26,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:07:26,747 INFO L225 Difference]: With dead ends: 24963 [2022-11-20 12:07:26,747 INFO L226 Difference]: Without dead ends: 24959 [2022-11-20 12:07:26,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:07:26,757 INFO L413 NwaCegarLoop]: 8004 mSDtfsCounter, 7412 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7412 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:07:26,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7412 Valid, 8905 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:07:26,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24959 states. [2022-11-20 12:07:28,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24959 to 24955. [2022-11-20 12:07:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24955 states, 17222 states have (on average 1.3680757171060272) internal successors, (23561), 17834 states have internal predecessors, (23561), 6084 states have call successors, (6084), 1649 states have call predecessors, (6084), 1648 states have return successors, (6077), 6057 states have call predecessors, (6077), 6077 states have call successors, (6077) [2022-11-20 12:07:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24955 states to 24955 states and 35722 transitions. [2022-11-20 12:07:28,608 INFO L78 Accepts]: Start accepts. Automaton has 24955 states and 35722 transitions. Word has length 98 [2022-11-20 12:07:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:07:28,608 INFO L495 AbstractCegarLoop]: Abstraction has 24955 states and 35722 transitions. [2022-11-20 12:07:28,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:07:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 24955 states and 35722 transitions. [2022-11-20 12:07:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 12:07:28,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:07:28,613 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 12:07:28,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -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 [2022-11-20 12:07:28,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:07:28,830 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:07:28,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:28,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1842134509, now seen corresponding path program 1 times [2022-11-20 12:07:28,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:07:28,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402470443] [2022-11-20 12:07:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:28,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:07:28,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:07:28,842 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:07:28,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 12:07:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:07:52,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 8352 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:07:52,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:07:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 12:07:54,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:07:54,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:07:54,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402470443] [2022-11-20 12:07:54,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402470443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:07:54,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:07:54,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:07:54,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514211565] [2022-11-20 12:07:54,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:07:54,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:07:54,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:07:54,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:07:54,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:07:54,465 INFO L87 Difference]: Start difference. First operand 24955 states and 35722 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:07:56,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:07:56,288 INFO L93 Difference]: Finished difference Result 27589 states and 39174 transitions. [2022-11-20 12:07:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:07:56,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 99 [2022-11-20 12:07:56,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:07:56,379 INFO L225 Difference]: With dead ends: 27589 [2022-11-20 12:07:56,379 INFO L226 Difference]: Without dead ends: 27573 [2022-11-20 12:07:56,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:07:56,393 INFO L413 NwaCegarLoop]: 7974 mSDtfsCounter, 7627 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7627 SdHoareTripleChecker+Valid, 8244 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:07:56,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7627 Valid, 8244 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:07:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27573 states. [2022-11-20 12:07:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27573 to 27571. [2022-11-20 12:07:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27571 states, 19288 states have (on average 1.3772812111157196) internal successors, (26565), 19898 states have internal predecessors, (26565), 6288 states have call successors, (6288), 1995 states have call predecessors, (6288), 1994 states have return successors, (6283), 6263 states have call predecessors, (6283), 6283 states have call successors, (6283) [2022-11-20 12:07:58,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27571 states to 27571 states and 39136 transitions. [2022-11-20 12:07:58,968 INFO L78 Accepts]: Start accepts. Automaton has 27571 states and 39136 transitions. Word has length 99 [2022-11-20 12:07:58,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:07:58,968 INFO L495 AbstractCegarLoop]: Abstraction has 27571 states and 39136 transitions. [2022-11-20 12:07:58,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 12:07:58,969 INFO L276 IsEmpty]: Start isEmpty. Operand 27571 states and 39136 transitions. [2022-11-20 12:07:58,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-20 12:07:58,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:07:58,977 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:07:59,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:07:59,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:07:59,202 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:07:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:07:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1421529649, now seen corresponding path program 1 times [2022-11-20 12:07:59,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:07:59,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42425537] [2022-11-20 12:07:59,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:59,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:07:59,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:07:59,213 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:07:59,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 12:08:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:21,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 8791 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:08:21,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 12:08:22,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:08:22,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:08:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42425537] [2022-11-20 12:08:22,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42425537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:22,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:22,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:08:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987854404] [2022-11-20 12:08:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:22,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:08:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:08:22,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:08:22,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:08:22,807 INFO L87 Difference]: Start difference. First operand 27571 states and 39136 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 12:08:24,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:08:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:08:28,449 INFO L93 Difference]: Finished difference Result 77471 states and 109800 transitions. [2022-11-20 12:08:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:08:28,450 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), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 154 [2022-11-20 12:08:28,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:08:28,681 INFO L225 Difference]: With dead ends: 77471 [2022-11-20 12:08:28,681 INFO L226 Difference]: Without dead ends: 49911 [2022-11-20 12:08:28,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:08:28,949 INFO L413 NwaCegarLoop]: 9671 mSDtfsCounter, 5516 mSDsluCounter, 7751 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5516 SdHoareTripleChecker+Valid, 17422 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:08:28,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5516 Valid, 17422 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 12:08:29,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49911 states. [2022-11-20 12:08:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49911 to 49902. [2022-11-20 12:08:32,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49902 states, 35135 states have (on average 1.3808453109435037) internal successors, (48516), 36225 states have internal predecessors, (48516), 11078 states have call successors, (11078), 3689 states have call predecessors, (11078), 3688 states have return successors, (11073), 11041 states have call predecessors, (11073), 11073 states have call successors, (11073) [2022-11-20 12:08:33,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49902 states to 49902 states and 70667 transitions. [2022-11-20 12:08:33,281 INFO L78 Accepts]: Start accepts. Automaton has 49902 states and 70667 transitions. Word has length 154 [2022-11-20 12:08:33,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:08:33,281 INFO L495 AbstractCegarLoop]: Abstraction has 49902 states and 70667 transitions. [2022-11-20 12:08:33,282 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), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 12:08:33,282 INFO L276 IsEmpty]: Start isEmpty. Operand 49902 states and 70667 transitions. [2022-11-20 12:08:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-20 12:08:33,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:08:33,298 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:08:33,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:08:33,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:08:33,514 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:08:33,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:08:33,515 INFO L85 PathProgramCache]: Analyzing trace with hash 68990930, now seen corresponding path program 1 times [2022-11-20 12:08:33,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:08:33,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750678996] [2022-11-20 12:08:33,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:08:33,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:08:33,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:08:33,527 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:08:33,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35eccdb0-34b9-4c87-a4a3-de9a7ef63df0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 12:08:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:08:57,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 8928 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:08:57,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:08:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 12:08:57,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:08:57,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:08:57,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750678996] [2022-11-20 12:08:57,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750678996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:08:57,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:08:57,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:08:57,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476605776] [2022-11-20 12:08:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:08:57,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:08:57,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:08:57,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:08:57,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:08:57,748 INFO L87 Difference]: Start difference. First operand 49902 states and 70667 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 12:08:59,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:09:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:09:02,781 INFO L93 Difference]: Finished difference Result 86067 states and 121825 transitions. [2022-11-20 12:09:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:09:02,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 205 [2022-11-20 12:09:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:09:02,902 INFO L225 Difference]: With dead ends: 86067 [2022-11-20 12:09:02,902 INFO L226 Difference]: Without dead ends: 36176 [2022-11-20 12:09:03,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:09:03,029 INFO L413 NwaCegarLoop]: 7783 mSDtfsCounter, 7781 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7781 SdHoareTripleChecker+Valid, 7783 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:09:03,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7781 Valid, 7783 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 12:09:03,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36176 states.