./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-43_2a-drivers--bluetooth--hci_uart.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- 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 10:38:14,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:38:14,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:38:14,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:38:14,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:38:14,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:38:14,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:38:14,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:38:14,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:38:14,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:38:14,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:38:14,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:38:14,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:38:14,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:38:14,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:38:14,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:38:14,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:38:14,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:38:14,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:38:14,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:38:14,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:38:14,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:38:14,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:38:14,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:38:14,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:38:14,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:38:14,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:38:14,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:38:14,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:38:14,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:38:14,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:38:14,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:38:14,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:38:14,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:38:14,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:38:14,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:38:14,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:38:14,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:38:14,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:38:14,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:38:14,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:38:14,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:38:14,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:38:14,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:38:14,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:38:14,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:38:14,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:38:14,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:38:14,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:38:14,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:38:14,602 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:38:14,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:38:14,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:38:14,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:38:14,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:38:14,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:38:14,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:38:14,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:38:14,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:38:14,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:38:14,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:38:14,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:38:14,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:38:14,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:38:14,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:38:14,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:38:14,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:38:14,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:38:14,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:38:14,608 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:38:14,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:38:14,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:38:14,608 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_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-11-20 10:38:14,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:38:14,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:38:14,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:38:14,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:38:14,871 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:38:14,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 10:38:18,025 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:38:18,785 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:38:18,786 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 10:38:18,847 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data/e3c8ece47/5e6e36ae1dbf4c52bea8831e7da9dc87/FLAGf244b8073 [2022-11-20 10:38:18,866 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data/e3c8ece47/5e6e36ae1dbf4c52bea8831e7da9dc87 [2022-11-20 10:38:18,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:38:18,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:38:18,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:38:18,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:38:18,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:38:18,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:38:18" (1/1) ... [2022-11-20 10:38:18,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59999512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:18, skipping insertion in model container [2022-11-20 10:38:18,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:38:18" (1/1) ... [2022-11-20 10:38:18,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:38:19,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:38:19,755 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 10:38:19,761 INFO L158 Benchmark]: Toolchain (without parser) took 888.09ms. Allocated memory is still 192.9MB. Free memory was 141.8MB in the beginning and 128.2MB in the end (delta: 13.6MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2022-11-20 10:38:19,761 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:38:19,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 885.78ms. Allocated memory is still 192.9MB. Free memory was 141.1MB in the beginning and 128.2MB in the end (delta: 13.0MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2022-11-20 10:38:19,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 885.78ms. Allocated memory is still 192.9MB. Free memory was 141.1MB in the beginning and 128.2MB in the end (delta: 13.0MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- 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 10:38:22,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:38:22,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:38:22,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:38:22,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:38:22,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:38:22,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:38:22,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:38:22,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:38:22,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:38:22,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:38:22,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:38:22,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:38:22,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:38:22,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:38:22,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:38:22,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:38:22,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:38:22,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:38:22,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:38:22,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:38:22,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:38:22,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:38:22,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:38:22,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:38:22,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:38:22,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:38:22,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:38:22,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:38:22,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:38:22,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:38:22,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:38:22,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:38:22,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:38:22,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:38:22,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:38:22,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:38:22,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:38:22,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:38:22,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:38:22,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:38:22,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:38:22,241 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:38:22,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:38:22,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:38:22,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:38:22,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:38:22,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:38:22,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:38:22,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:38:22,246 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:38:22,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:38:22,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:38:22,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:38:22,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:38:22,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:38:22,248 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:38:22,248 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:38:22,248 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:38:22,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:38:22,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:38:22,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:38:22,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:38:22,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:38:22,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:38:22,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:38:22,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:38:22,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:38:22,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:38:22,250 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:38:22,251 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:38:22,251 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:38:22,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:38:22,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:38:22,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:38:22,252 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_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-11-20 10:38:22,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:38:22,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:38:22,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:38:22,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:38:22,629 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:38:22,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 10:38:25,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:38:26,529 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:38:26,530 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 10:38:26,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data/272c86b15/7802bcffaa7d49d1a8573d9fe6870c3a/FLAG028f7d28a [2022-11-20 10:38:26,621 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/data/272c86b15/7802bcffaa7d49d1a8573d9fe6870c3a [2022-11-20 10:38:26,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:38:26,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:38:26,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:38:26,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:38:26,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:38:26,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:38:26" (1/1) ... [2022-11-20 10:38:26,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0782ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:26, skipping insertion in model container [2022-11-20 10:38:26,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:38:26" (1/1) ... [2022-11-20 10:38:26,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:38:26,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:38:30,660 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-20 10:38:30,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:38:30,740 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:38:30,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:38:31,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-20 10:38:31,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:38:31,563 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:38:32,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-20 10:38:32,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:38:32,509 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:38:32,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32 WrapperNode [2022-11-20 10:38:32,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:38:32,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:38:32,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:38:32,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:38:32,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:32,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:32,904 INFO L138 Inliner]: procedures = 504, calls = 4850, calls flagged for inlining = 135, calls inlined = 106, statements flattened = 6360 [2022-11-20 10:38:32,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:38:32,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:38:32,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:38:32,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:38:32,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:32,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:32,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:32,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:33,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:33,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:33,250 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:33,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:33,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:38:33,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:38:33,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:38:33,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:38:33,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (1/1) ... [2022-11-20 10:38:33,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:38:33,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:38:33,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:38:33,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:38:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 10:38:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 10:38:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2022-11-20 10:38:33,420 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2022-11-20 10:38:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:38:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:38:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-20 10:38:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-20 10:38:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2022-11-20 10:38:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2022-11-20 10:38:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 10:38:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 10:38:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:38:33,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:38:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2022-11-20 10:38:33,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2022-11-20 10:38:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2022-11-20 10:38:33,423 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2022-11-20 10:38:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-20 10:38:33,423 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-20 10:38:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:38:33,423 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:38:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:38:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:38:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2022-11-20 10:38:33,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2022-11-20 10:38:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2022-11-20 10:38:33,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2022-11-20 10:38:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-20 10:38:33,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-20 10:38:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 10:38:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2022-11-20 10:38:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2022-11-20 10:38:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:38:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:38:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:38:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:38:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2022-11-20 10:38:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2022-11-20 10:38:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-20 10:38:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-20 10:38:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:38:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:38:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:38:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:38:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2022-11-20 10:38:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2022-11-20 10:38:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 10:38:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 10:38:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2022-11-20 10:38:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2022-11-20 10:38:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2022-11-20 10:38:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2022-11-20 10:38:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2022-11-20 10:38:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 10:38:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 10:38:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2022-11-20 10:38:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2022-11-20 10:38:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-20 10:38:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-20 10:38:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2022-11-20 10:38:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2022-11-20 10:38:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2022-11-20 10:38:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2022-11-20 10:38:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:38:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:38:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2022-11-20 10:38:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2022-11-20 10:38:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 10:38:33,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 10:38:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2022-11-20 10:38:33,434 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2022-11-20 10:38:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2022-11-20 10:38:33,435 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2022-11-20 10:38:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2022-11-20 10:38:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-20 10:38:33,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-20 10:38:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2022-11-20 10:38:33,436 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2022-11-20 10:38:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:38:33,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:38:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2022-11-20 10:38:33,437 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2022-11-20 10:38:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2022-11-20 10:38:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2022-11-20 10:38:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:38:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:38:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2022-11-20 10:38:33,438 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2022-11-20 10:38:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:38:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-20 10:38:33,439 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-20 10:38:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-20 10:38:33,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-20 10:38:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:38:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2022-11-20 10:38:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2022-11-20 10:38:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:38:33,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:38:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:38:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:38:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:38:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:38:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:38:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:38:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-20 10:38:33,442 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-20 10:38:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2022-11-20 10:38:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2022-11-20 10:38:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2022-11-20 10:38:33,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2022-11-20 10:38:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2022-11-20 10:38:33,447 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2022-11-20 10:38:33,447 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2022-11-20 10:38:33,447 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2022-11-20 10:38:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 10:38:33,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 10:38:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 10:38:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 10:38:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2022-11-20 10:38:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2022-11-20 10:38:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2022-11-20 10:38:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2022-11-20 10:38:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2022-11-20 10:38:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2022-11-20 10:38:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2022-11-20 10:38:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2022-11-20 10:38:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2022-11-20 10:38:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2022-11-20 10:38:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-20 10:38:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-20 10:38:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:38:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:38:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2022-11-20 10:38:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2022-11-20 10:38:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 10:38:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 10:38:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2022-11-20 10:38:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2022-11-20 10:38:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:38:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:38:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:38:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:38:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:38:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 10:38:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 10:38:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2022-11-20 10:38:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2022-11-20 10:38:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:38:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2022-11-20 10:38:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2022-11-20 10:38:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:38:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-20 10:38:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-20 10:38:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:38:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:38:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:38:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:38:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:38:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:38:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2022-11-20 10:38:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2022-11-20 10:38:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-20 10:38:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-20 10:38:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-20 10:38:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-20 10:38:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2022-11-20 10:38:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2022-11-20 10:38:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-20 10:38:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-20 10:38:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-20 10:38:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-20 10:38:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2022-11-20 10:38:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2022-11-20 10:38:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2022-11-20 10:38:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2022-11-20 10:38:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:38:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:38:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-11-20 10:38:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-11-20 10:38:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2022-11-20 10:38:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2022-11-20 10:38:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:38:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:38:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2022-11-20 10:38:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2022-11-20 10:38:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-11-20 10:38:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-11-20 10:38:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:38:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:38:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2022-11-20 10:38:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2022-11-20 10:38:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 10:38:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 10:38:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 10:38:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 10:38:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2022-11-20 10:38:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2022-11-20 10:38:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:38:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2022-11-20 10:38:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2022-11-20 10:38:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2022-11-20 10:38:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2022-11-20 10:38:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2022-11-20 10:38:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2022-11-20 10:38:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:38:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:38:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:38:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-20 10:38:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-20 10:38:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 10:38:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 10:38:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2022-11-20 10:38:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2022-11-20 10:38:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:38:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:38:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:38:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:38:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:38:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2022-11-20 10:38:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2022-11-20 10:38:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-20 10:38:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-20 10:38:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2022-11-20 10:38:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2022-11-20 10:38:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-20 10:38:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-20 10:38:33,471 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2022-11-20 10:38:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2022-11-20 10:38:33,471 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2022-11-20 10:38:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2022-11-20 10:38:33,471 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 10:38:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 10:38:33,471 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 10:38:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 10:38:33,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-20 10:38:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-20 10:38:33,472 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2022-11-20 10:38:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2022-11-20 10:38:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2022-11-20 10:38:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2022-11-20 10:38:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2022-11-20 10:38:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2022-11-20 10:38:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2022-11-20 10:38:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2022-11-20 10:38:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:38:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:38:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2022-11-20 10:38:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2022-11-20 10:38:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2022-11-20 10:38:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2022-11-20 10:38:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2022-11-20 10:38:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2022-11-20 10:38:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2022-11-20 10:38:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2022-11-20 10:38:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2022-11-20 10:38:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2022-11-20 10:38:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 10:38:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 10:38:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2022-11-20 10:38:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2022-11-20 10:38:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2022-11-20 10:38:33,481 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2022-11-20 10:38:33,481 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 10:38:33,481 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 10:38:33,481 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2022-11-20 10:38:33,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2022-11-20 10:38:33,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:38:33,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:38:33,481 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:38:33,481 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:38:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2022-11-20 10:38:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2022-11-20 10:38:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:38:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:38:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-20 10:38:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-20 10:38:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-20 10:38:33,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-20 10:38:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:38:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:38:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:38:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:38:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:38:33,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:38:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2022-11-20 10:38:33,483 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2022-11-20 10:38:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2022-11-20 10:38:33,484 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2022-11-20 10:38:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2022-11-20 10:38:33,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2022-11-20 10:38:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2022-11-20 10:38:33,484 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2022-11-20 10:38:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 10:38:33,484 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 10:38:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:38:33,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:38:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2022-11-20 10:38:33,485 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2022-11-20 10:38:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2022-11-20 10:38:33,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2022-11-20 10:38:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2022-11-20 10:38:33,485 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2022-11-20 10:38:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2022-11-20 10:38:33,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2022-11-20 10:38:33,485 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2022-11-20 10:38:33,486 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2022-11-20 10:38:33,486 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 10:38:33,486 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 10:38:33,486 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-20 10:38:33,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-20 10:38:33,486 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 10:38:33,486 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 10:38:33,486 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2022-11-20 10:38:33,486 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2022-11-20 10:38:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2022-11-20 10:38:33,487 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2022-11-20 10:38:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 10:38:33,487 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 10:38:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-20 10:38:33,487 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-20 10:38:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2022-11-20 10:38:33,487 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2022-11-20 10:38:34,481 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:38:34,486 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:38:41,728 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:40:09,250 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:40:09,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:40:09,274 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:40:09,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:40:09 BoogieIcfgContainer [2022-11-20 10:40:09,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:40:09,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:40:09,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:40:09,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:40:09,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:38:26" (1/3) ... [2022-11-20 10:40:09,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aeaa3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:40:09, skipping insertion in model container [2022-11-20 10:40:09,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:38:32" (2/3) ... [2022-11-20 10:40:09,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aeaa3e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:40:09, skipping insertion in model container [2022-11-20 10:40:09,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:40:09" (3/3) ... [2022-11-20 10:40:09,289 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 10:40:09,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:40:09,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:40:09,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:40:09,484 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;@67c077d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:40:09,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:40:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 2526 states, 1715 states have (on average 1.356268221574344) internal successors, (2326), 1763 states have internal predecessors, (2326), 665 states have call successors, (665), 145 states have call predecessors, (665), 144 states have return successors, (655), 644 states have call predecessors, (655), 655 states have call successors, (655) [2022-11-20 10:40:09,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 10:40:09,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:09,527 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] [2022-11-20 10:40:09,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:09,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:09,534 INFO L85 PathProgramCache]: Analyzing trace with hash 217941148, now seen corresponding path program 1 times [2022-11-20 10:40:09,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:09,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218265249] [2022-11-20 10:40:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:09,566 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 10:40:09,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:09,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:09,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:11,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2316 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:11,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:11,970 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 10:40:11,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:11,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:11,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218265249] [2022-11-20 10:40:11,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218265249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:11,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:11,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:11,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144977197] [2022-11-20 10:40:11,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:11,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:11,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:12,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:12,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:12,025 INFO L87 Difference]: Start difference. First operand has 2526 states, 1715 states have (on average 1.356268221574344) internal successors, (2326), 1763 states have internal predecessors, (2326), 665 states have call successors, (665), 145 states have call predecessors, (665), 144 states have return successors, (655), 644 states have call predecessors, (655), 655 states have call successors, (655) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:12,622 INFO L93 Difference]: Finished difference Result 5038 states and 7477 transitions. [2022-11-20 10:40:12,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:12,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2022-11-20 10:40:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:12,663 INFO L225 Difference]: With dead ends: 5038 [2022-11-20 10:40:12,663 INFO L226 Difference]: Without dead ends: 2476 [2022-11-20 10:40:12,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 10:40:12,692 INFO L413 NwaCegarLoop]: 3629 mSDtfsCounter, 3615 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3615 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:12,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3615 Valid, 3629 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:40:12,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-11-20 10:40:12,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2022-11-20 10:40:12,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 1686 states have (on average 1.34994068801898) internal successors, (2276), 1722 states have internal predecessors, (2276), 647 states have call successors, (647), 143 states have call predecessors, (647), 142 states have return successors, (646), 635 states have call predecessors, (646), 646 states have call successors, (646) [2022-11-20 10:40:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3569 transitions. [2022-11-20 10:40:12,967 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3569 transitions. Word has length 56 [2022-11-20 10:40:12,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:12,967 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3569 transitions. [2022-11-20 10:40:12,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:12,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3569 transitions. [2022-11-20 10:40:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 10:40:12,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:12,979 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] [2022-11-20 10:40:13,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:13,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:13,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:13,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:13,195 INFO L85 PathProgramCache]: Analyzing trace with hash 357916371, now seen corresponding path program 1 times [2022-11-20 10:40:13,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:13,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212882878] [2022-11-20 10:40:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:13,200 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 10:40:13,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:13,201 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:13,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:14,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 2312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:14,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:15,182 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 10:40:15,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:15,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:15,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212882878] [2022-11-20 10:40:15,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212882878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:15,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:15,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147057389] [2022-11-20 10:40:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:15,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:15,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:15,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:15,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:15,187 INFO L87 Difference]: Start difference. First operand 2476 states and 3569 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:15,596 INFO L93 Difference]: Finished difference Result 4944 states and 7129 transitions. [2022-11-20 10:40:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:15,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2022-11-20 10:40:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:15,615 INFO L225 Difference]: With dead ends: 4944 [2022-11-20 10:40:15,615 INFO L226 Difference]: Without dead ends: 2474 [2022-11-20 10:40:15,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 10:40:15,631 INFO L413 NwaCegarLoop]: 3564 mSDtfsCounter, 3552 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3552 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:15,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3552 Valid, 3564 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:15,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-20 10:40:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-20 10:40:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 1685 states have (on average 1.3495548961424333) internal successors, (2274), 1721 states have internal predecessors, (2274), 646 states have call successors, (646), 143 states have call predecessors, (646), 142 states have return successors, (645), 634 states have call predecessors, (645), 645 states have call successors, (645) [2022-11-20 10:40:15,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3565 transitions. [2022-11-20 10:40:15,930 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3565 transitions. Word has length 54 [2022-11-20 10:40:15,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:15,931 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 3565 transitions. [2022-11-20 10:40:15,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3565 transitions. [2022-11-20 10:40:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 10:40:15,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:15,938 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] [2022-11-20 10:40:15,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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)] Forceful destruction successful, exit code 0 [2022-11-20 10:40:16,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:16,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:16,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash 446785186, now seen corresponding path program 1 times [2022-11-20 10:40:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:16,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488506465] [2022-11-20 10:40:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:16,166 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 10:40:16,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:16,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:16,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:17,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 2318 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:17,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:18,096 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 10:40:18,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:18,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:18,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488506465] [2022-11-20 10:40:18,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488506465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:18,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:18,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:18,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781192775] [2022-11-20 10:40:18,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:18,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:18,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:18,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:18,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:18,100 INFO L87 Difference]: Start difference. First operand 2474 states and 3565 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:18,543 INFO L93 Difference]: Finished difference Result 4940 states and 7121 transitions. [2022-11-20 10:40:18,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:18,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-11-20 10:40:18,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:18,562 INFO L225 Difference]: With dead ends: 4940 [2022-11-20 10:40:18,563 INFO L226 Difference]: Without dead ends: 2472 [2022-11-20 10:40:18,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 10:40:18,582 INFO L413 NwaCegarLoop]: 3560 mSDtfsCounter, 3545 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3545 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:18,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3545 Valid, 3560 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:18,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-11-20 10:40:18,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2022-11-20 10:40:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1684 states have (on average 1.3491686460807601) internal successors, (2272), 1720 states have internal predecessors, (2272), 645 states have call successors, (645), 143 states have call predecessors, (645), 142 states have return successors, (644), 633 states have call predecessors, (644), 644 states have call successors, (644) [2022-11-20 10:40:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3561 transitions. [2022-11-20 10:40:18,778 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3561 transitions. Word has length 57 [2022-11-20 10:40:18,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:18,779 INFO L495 AbstractCegarLoop]: Abstraction has 2472 states and 3561 transitions. [2022-11-20 10:40:18,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3561 transitions. [2022-11-20 10:40:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 10:40:18,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:18,783 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] [2022-11-20 10:40:18,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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)] Forceful destruction successful, exit code 0 [2022-11-20 10:40:18,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:18,997 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:18,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1373970745, now seen corresponding path program 1 times [2022-11-20 10:40:19,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:19,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502968420] [2022-11-20 10:40:19,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:19,001 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 10:40:19,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:19,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:19,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:20,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:20,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:21,049 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 10:40:21,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:21,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:21,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502968420] [2022-11-20 10:40:21,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502968420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:21,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:21,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:21,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608844732] [2022-11-20 10:40:21,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:21,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:21,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:21,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:21,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:21,052 INFO L87 Difference]: Start difference. First operand 2472 states and 3561 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:21,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:21,483 INFO L93 Difference]: Finished difference Result 4936 states and 7113 transitions. [2022-11-20 10:40:21,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:21,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-11-20 10:40:21,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:21,506 INFO L225 Difference]: With dead ends: 4936 [2022-11-20 10:40:21,507 INFO L226 Difference]: Without dead ends: 2470 [2022-11-20 10:40:21,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 10:40:21,524 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 3543 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:21,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 3556 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-11-20 10:40:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2470. [2022-11-20 10:40:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 1683 states have (on average 1.3487819370172311) internal successors, (2270), 1719 states have internal predecessors, (2270), 644 states have call successors, (644), 143 states have call predecessors, (644), 142 states have return successors, (643), 632 states have call predecessors, (643), 643 states have call successors, (643) [2022-11-20 10:40:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3557 transitions. [2022-11-20 10:40:21,714 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3557 transitions. Word has length 55 [2022-11-20 10:40:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:21,716 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3557 transitions. [2022-11-20 10:40:21,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:40:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3557 transitions. [2022-11-20 10:40:21,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 10:40:21,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:21,721 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] [2022-11-20 10:40:21,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:21,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:21,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:21,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:21,947 INFO L85 PathProgramCache]: Analyzing trace with hash -194145626, now seen corresponding path program 1 times [2022-11-20 10:40:21,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:21,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769075040] [2022-11-20 10:40:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:21,950 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 10:40:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:21,952 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:21,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:23,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:23,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:23,954 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 10:40:23,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:23,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:23,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769075040] [2022-11-20 10:40:23,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769075040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:23,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:23,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:23,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835821345] [2022-11-20 10:40:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:23,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:23,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:23,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:23,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:23,957 INFO L87 Difference]: Start difference. First operand 2470 states and 3557 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:24,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:24,427 INFO L93 Difference]: Finished difference Result 4932 states and 7105 transitions. [2022-11-20 10:40:24,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:24,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2022-11-20 10:40:24,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:24,442 INFO L225 Difference]: With dead ends: 4932 [2022-11-20 10:40:24,443 INFO L226 Difference]: Without dead ends: 2468 [2022-11-20 10:40:24,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 10:40:24,456 INFO L413 NwaCegarLoop]: 3552 mSDtfsCounter, 3539 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3539 SdHoareTripleChecker+Valid, 3552 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:24,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3539 Valid, 3552 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2022-11-20 10:40:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2468. [2022-11-20 10:40:24,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 1682 states have (on average 1.3483947681331747) internal successors, (2268), 1718 states have internal predecessors, (2268), 643 states have call successors, (643), 143 states have call predecessors, (643), 142 states have return successors, (642), 631 states have call predecessors, (642), 642 states have call successors, (642) [2022-11-20 10:40:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3553 transitions. [2022-11-20 10:40:24,659 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3553 transitions. Word has length 58 [2022-11-20 10:40:24,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:24,660 INFO L495 AbstractCegarLoop]: Abstraction has 2468 states and 3553 transitions. [2022-11-20 10:40:24,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:24,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3553 transitions. [2022-11-20 10:40:24,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-20 10:40:24,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:24,664 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] [2022-11-20 10:40:24,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:24,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:24,887 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:24,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:24,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1843750481, now seen corresponding path program 1 times [2022-11-20 10:40:24,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:24,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671944645] [2022-11-20 10:40:24,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:24,890 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 10:40:24,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:24,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:24,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:26,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:26,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:26,746 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 10:40:26,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:26,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:26,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671944645] [2022-11-20 10:40:26,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671944645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:26,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:26,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964385713] [2022-11-20 10:40:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:26,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:26,750 INFO L87 Difference]: Start difference. First operand 2468 states and 3553 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:27,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:27,180 INFO L93 Difference]: Finished difference Result 4928 states and 7097 transitions. [2022-11-20 10:40:27,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:27,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2022-11-20 10:40:27,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:27,202 INFO L225 Difference]: With dead ends: 4928 [2022-11-20 10:40:27,202 INFO L226 Difference]: Without dead ends: 2466 [2022-11-20 10:40:27,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 10:40:27,266 INFO L413 NwaCegarLoop]: 3548 mSDtfsCounter, 3533 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3533 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:27,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3533 Valid, 3548 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:27,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2022-11-20 10:40:27,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2466. [2022-11-20 10:40:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 1681 states have (on average 1.3480071386079715) internal successors, (2266), 1717 states have internal predecessors, (2266), 642 states have call successors, (642), 143 states have call predecessors, (642), 142 states have return successors, (641), 630 states have call predecessors, (641), 641 states have call successors, (641) [2022-11-20 10:40:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3549 transitions. [2022-11-20 10:40:27,495 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3549 transitions. Word has length 60 [2022-11-20 10:40:27,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:27,496 INFO L495 AbstractCegarLoop]: Abstraction has 2466 states and 3549 transitions. [2022-11-20 10:40:27,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:27,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3549 transitions. [2022-11-20 10:40:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 10:40:27,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:27,499 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] [2022-11-20 10:40:27,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:27,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:27,727 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:27,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:27,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1841388721, now seen corresponding path program 1 times [2022-11-20 10:40:27,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:27,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741923134] [2022-11-20 10:40:27,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:27,730 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 10:40:27,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:27,731 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:27,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:29,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:29,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:29,542 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 10:40:29,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:29,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:29,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741923134] [2022-11-20 10:40:29,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741923134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:29,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:29,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:29,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535312931] [2022-11-20 10:40:29,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:29,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:29,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:29,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:29,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:29,546 INFO L87 Difference]: Start difference. First operand 2466 states and 3549 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:30,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:30,025 INFO L93 Difference]: Finished difference Result 4924 states and 7089 transitions. [2022-11-20 10:40:30,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:30,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2022-11-20 10:40:30,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:30,042 INFO L225 Difference]: With dead ends: 4924 [2022-11-20 10:40:30,042 INFO L226 Difference]: Without dead ends: 2464 [2022-11-20 10:40:30,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 10:40:30,055 INFO L413 NwaCegarLoop]: 3544 mSDtfsCounter, 3528 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3528 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:30,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3528 Valid, 3544 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:30,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-11-20 10:40:30,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2464. [2022-11-20 10:40:30,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 1680 states have (on average 1.3476190476190477) internal successors, (2264), 1716 states have internal predecessors, (2264), 641 states have call successors, (641), 143 states have call predecessors, (641), 142 states have return successors, (640), 629 states have call predecessors, (640), 640 states have call successors, (640) [2022-11-20 10:40:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 3545 transitions. [2022-11-20 10:40:30,397 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 3545 transitions. Word has length 61 [2022-11-20 10:40:30,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:30,397 INFO L495 AbstractCegarLoop]: Abstraction has 2464 states and 3545 transitions. [2022-11-20 10:40:30,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 3545 transitions. [2022-11-20 10:40:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:40:30,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:30,402 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] [2022-11-20 10:40:30,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:30,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:30,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:30,627 INFO L85 PathProgramCache]: Analyzing trace with hash -476967672, now seen corresponding path program 1 times [2022-11-20 10:40:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:30,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274317677] [2022-11-20 10:40:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:30,629 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 10:40:30,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:30,630 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:30,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:32,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:32,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:32,377 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 10:40:32,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:32,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:32,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274317677] [2022-11-20 10:40:32,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274317677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:32,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:32,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:32,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736379378] [2022-11-20 10:40:32,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:32,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:32,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:32,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:32,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:32,380 INFO L87 Difference]: Start difference. First operand 2464 states and 3545 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:32,776 INFO L93 Difference]: Finished difference Result 4550 states and 6533 transitions. [2022-11-20 10:40:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:32,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2022-11-20 10:40:32,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:32,791 INFO L225 Difference]: With dead ends: 4550 [2022-11-20 10:40:32,792 INFO L226 Difference]: Without dead ends: 2092 [2022-11-20 10:40:32,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 10:40:32,805 INFO L413 NwaCegarLoop]: 2992 mSDtfsCounter, 2978 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:32,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 2992 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:40:32,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2022-11-20 10:40:33,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2092. [2022-11-20 10:40:33,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 1436 states have (on average 1.3467966573816157) internal successors, (1934), 1461 states have internal predecessors, (1934), 530 states have call successors, (530), 126 states have call predecessors, (530), 125 states have return successors, (529), 522 states have call predecessors, (529), 529 states have call successors, (529) [2022-11-20 10:40:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2993 transitions. [2022-11-20 10:40:33,069 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2993 transitions. Word has length 59 [2022-11-20 10:40:33,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:33,069 INFO L495 AbstractCegarLoop]: Abstraction has 2092 states and 2993 transitions. [2022-11-20 10:40:33,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 10:40:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2993 transitions. [2022-11-20 10:40:33,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 10:40:33,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:33,073 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:40:33,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:33,287 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1988370414, now seen corresponding path program 1 times [2022-11-20 10:40:33,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:33,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942626240] [2022-11-20 10:40:33,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:33,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:33,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:33,294 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:33,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:34,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:34,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 10:40:35,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:35,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:35,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942626240] [2022-11-20 10:40:35,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942626240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:35,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:35,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:35,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203605208] [2022-11-20 10:40:35,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:35,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:35,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:35,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:35,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:35,063 INFO L87 Difference]: Start difference. First operand 2092 states and 2993 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 10:40:36,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:36,559 INFO L93 Difference]: Finished difference Result 6068 states and 8681 transitions. [2022-11-20 10:40:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:36,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2022-11-20 10:40:36,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:36,580 INFO L225 Difference]: With dead ends: 6068 [2022-11-20 10:40:36,580 INFO L226 Difference]: Without dead ends: 3982 [2022-11-20 10:40:36,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 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 10:40:36,588 INFO L413 NwaCegarLoop]: 3472 mSDtfsCounter, 2694 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 6369 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:36,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 6369 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 10:40:36,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2022-11-20 10:40:37,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3977. [2022-11-20 10:40:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 2728 states have (on average 1.345307917888563) internal successors, (3670), 2779 states have internal predecessors, (3670), 1010 states have call successors, (1010), 239 states have call predecessors, (1010), 238 states have return successors, (1009), 994 states have call predecessors, (1009), 1009 states have call successors, (1009) [2022-11-20 10:40:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5689 transitions. [2022-11-20 10:40:37,114 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5689 transitions. Word has length 77 [2022-11-20 10:40:37,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:37,114 INFO L495 AbstractCegarLoop]: Abstraction has 3977 states and 5689 transitions. [2022-11-20 10:40:37,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 10:40:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5689 transitions. [2022-11-20 10:40:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 10:40:37,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:37,122 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:40:37,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:37,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:37,347 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:37,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:37,347 INFO L85 PathProgramCache]: Analyzing trace with hash 873302896, now seen corresponding path program 1 times [2022-11-20 10:40:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:37,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552669264] [2022-11-20 10:40:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:37,349 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 10:40:37,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:37,350 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:37,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:38,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:38,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 10:40:39,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:39,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:39,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552669264] [2022-11-20 10:40:39,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552669264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:39,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:39,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:39,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525771569] [2022-11-20 10:40:39,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:39,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:39,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:39,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:39,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:39,071 INFO L87 Difference]: Start difference. First operand 3977 states and 5689 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:40:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:40,470 INFO L93 Difference]: Finished difference Result 11404 states and 16277 transitions. [2022-11-20 10:40:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:40,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 78 [2022-11-20 10:40:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:40,521 INFO L225 Difference]: With dead ends: 11404 [2022-11-20 10:40:40,521 INFO L226 Difference]: Without dead ends: 7433 [2022-11-20 10:40:40,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 10:40:40,538 INFO L413 NwaCegarLoop]: 3681 mSDtfsCounter, 2589 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2589 SdHoareTripleChecker+Valid, 6635 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:40,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2589 Valid, 6635 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:40:40,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7433 states. [2022-11-20 10:40:41,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7433 to 7430. [2022-11-20 10:40:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5097 states have (on average 1.3441239945065724) internal successors, (6851), 5194 states have internal predecessors, (6851), 1870 states have call successors, (1870), 463 states have call predecessors, (1870), 462 states have return successors, (1869), 1840 states have call predecessors, (1869), 1869 states have call successors, (1869) [2022-11-20 10:40:41,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10590 transitions. [2022-11-20 10:40:41,522 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10590 transitions. Word has length 78 [2022-11-20 10:40:41,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:41,523 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10590 transitions. [2022-11-20 10:40:41,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:40:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10590 transitions. [2022-11-20 10:40:41,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 10:40:41,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:41,527 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:40:41,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:41,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:41,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:41,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:41,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1195801299, now seen corresponding path program 1 times [2022-11-20 10:40:41,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:41,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689769805] [2022-11-20 10:40:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:41,745 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 10:40:41,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:41,746 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:41,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:43,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 2319 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:43,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 10:40:43,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:43,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689769805] [2022-11-20 10:40:43,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689769805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:43,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:43,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:43,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293589435] [2022-11-20 10:40:43,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:43,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:43,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:43,531 INFO L87 Difference]: Start difference. First operand 7430 states and 10590 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:40:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:45,175 INFO L93 Difference]: Finished difference Result 21877 states and 31168 transitions. [2022-11-20 10:40:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 75 [2022-11-20 10:40:45,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:45,253 INFO L225 Difference]: With dead ends: 21877 [2022-11-20 10:40:45,253 INFO L226 Difference]: Without dead ends: 14453 [2022-11-20 10:40:45,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 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 10:40:45,282 INFO L413 NwaCegarLoop]: 3943 mSDtfsCounter, 2828 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 6897 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:45,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 6897 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:40:45,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14453 states. [2022-11-20 10:40:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14453 to 14446. [2022-11-20 10:40:46,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14446 states, 9915 states have (on average 1.3437216338880484) internal successors, (13323), 10110 states have internal predecessors, (13323), 3626 states have call successors, (3626), 905 states have call predecessors, (3626), 904 states have return successors, (3625), 3566 states have call predecessors, (3625), 3625 states have call successors, (3625) [2022-11-20 10:40:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14446 states to 14446 states and 20574 transitions. [2022-11-20 10:40:47,015 INFO L78 Accepts]: Start accepts. Automaton has 14446 states and 20574 transitions. Word has length 75 [2022-11-20 10:40:47,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:47,015 INFO L495 AbstractCegarLoop]: Abstraction has 14446 states and 20574 transitions. [2022-11-20 10:40:47,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:40:47,016 INFO L276 IsEmpty]: Start isEmpty. Operand 14446 states and 20574 transitions. [2022-11-20 10:40:47,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 10:40:47,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:47,019 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:40:47,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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)] Ended with exit code 0 [2022-11-20 10:40:47,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:47,235 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:47,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:47,235 INFO L85 PathProgramCache]: Analyzing trace with hash 208215671, now seen corresponding path program 1 times [2022-11-20 10:40:47,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:47,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131633958] [2022-11-20 10:40:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:47,239 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 10:40:47,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:47,241 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:47,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:49,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:49,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 10:40:49,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:49,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:49,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131633958] [2022-11-20 10:40:49,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131633958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:49,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:49,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:49,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333711082] [2022-11-20 10:40:49,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:49,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:49,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:49,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:49,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:49,446 INFO L87 Difference]: Start difference. First operand 14446 states and 20574 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:40:52,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:52,119 INFO L93 Difference]: Finished difference Result 41129 states and 58464 transitions. [2022-11-20 10:40:52,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:52,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2022-11-20 10:40:52,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:52,263 INFO L225 Difference]: With dead ends: 41129 [2022-11-20 10:40:52,263 INFO L226 Difference]: Without dead ends: 26689 [2022-11-20 10:40:52,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 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 10:40:52,319 INFO L413 NwaCegarLoop]: 3968 mSDtfsCounter, 2564 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2564 SdHoareTripleChecker+Valid, 6922 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:52,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2564 Valid, 6922 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:40:52,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26689 states. [2022-11-20 10:40:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26689 to 26678. [2022-11-20 10:40:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26678 states, 18379 states have (on average 1.344306001414658) internal successors, (24707), 18738 states have internal predecessors, (24707), 6586 states have call successors, (6586), 1713 states have call predecessors, (6586), 1712 states have return successors, (6585), 6466 states have call predecessors, (6585), 6585 states have call successors, (6585) [2022-11-20 10:40:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26678 states to 26678 states and 37878 transitions. [2022-11-20 10:40:55,914 INFO L78 Accepts]: Start accepts. Automaton has 26678 states and 37878 transitions. Word has length 77 [2022-11-20 10:40:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:55,914 INFO L495 AbstractCegarLoop]: Abstraction has 26678 states and 37878 transitions. [2022-11-20 10:40:55,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:40:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 26678 states and 37878 transitions. [2022-11-20 10:40:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 10:40:55,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:55,917 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:40:55,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:56,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:56,131 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:56,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:56,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1771736614, now seen corresponding path program 1 times [2022-11-20 10:40:56,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:56,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401650809] [2022-11-20 10:40:56,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:56,134 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 10:40:56,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:56,137 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:56,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:40:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:58,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 2343 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:40:58,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:58,294 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 10:40:58,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:40:58,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:58,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401650809] [2022-11-20 10:40:58,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401650809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:40:58,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:40:58,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:40:58,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274245050] [2022-11-20 10:40:58,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:40:58,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:40:58,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:58,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:40:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:58,296 INFO L87 Difference]: Start difference. First operand 26678 states and 37878 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:41:03,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:03,225 INFO L93 Difference]: Finished difference Result 72817 states and 103096 transitions. [2022-11-20 10:41:03,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:03,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 84 [2022-11-20 10:41:03,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:03,504 INFO L225 Difference]: With dead ends: 72817 [2022-11-20 10:41:03,504 INFO L226 Difference]: Without dead ends: 46145 [2022-11-20 10:41:03,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 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 10:41:03,638 INFO L413 NwaCegarLoop]: 4460 mSDtfsCounter, 2315 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 7414 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:03,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2315 Valid, 7414 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:41:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46145 states. [2022-11-20 10:41:08,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46145 to 46126. [2022-11-20 10:41:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46126 states, 31739 states have (on average 1.3415356501465074) internal successors, (42579), 32362 states have internal predecessors, (42579), 11306 states have call successors, (11306), 3081 states have call predecessors, (11306), 3080 states have return successors, (11305), 11082 states have call predecessors, (11305), 11305 states have call successors, (11305) [2022-11-20 10:41:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46126 states to 46126 states and 65190 transitions. [2022-11-20 10:41:08,663 INFO L78 Accepts]: Start accepts. Automaton has 46126 states and 65190 transitions. Word has length 84 [2022-11-20 10:41:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:08,664 INFO L495 AbstractCegarLoop]: Abstraction has 46126 states and 65190 transitions. [2022-11-20 10:41:08,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 10:41:08,664 INFO L276 IsEmpty]: Start isEmpty. Operand 46126 states and 65190 transitions. [2022-11-20 10:41:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 10:41:08,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:08,667 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:41:08,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:41:08,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:41:08,891 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:08,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:08,891 INFO L85 PathProgramCache]: Analyzing trace with hash 89209535, now seen corresponding path program 1 times [2022-11-20 10:41:08,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:41:08,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468444197] [2022-11-20 10:41:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:08,894 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 10:41:08,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:41:08,896 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:41:08,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ad5f4cf-36f3-46e2-a3e4-f2581a63f66d/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 10:41:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:10,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:41:10,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 10:41:11,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:41:11,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:41:11,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468444197] [2022-11-20 10:41:11,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468444197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:11,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:11,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:41:11,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002841630] [2022-11-20 10:41:11,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:11,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:11,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:41:11,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:11,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:11,014 INFO L87 Difference]: Start difference. First operand 46126 states and 65190 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)