./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.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_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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_66574df8-1466-4781-8c4d-8c910787d0d9/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 fd0809ab472c07ecac4481f79234cefe77a263df35fd70312ac385669cfbdfaf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:48:34,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:48:34,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:48:34,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:48:34,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:48:34,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:48:34,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:48:34,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:48:34,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:48:34,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:48:34,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:48:34,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:48:34,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:48:34,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:48:34,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:48:34,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:48:34,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:48:34,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:48:34,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:48:34,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:48:34,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:48:34,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:48:34,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:48:34,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:48:34,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:48:34,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:48:34,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:48:34,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:48:34,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:48:34,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:48:34,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:48:34,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:48:34,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:48:34,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:48:34,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:48:34,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:48:34,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:48:34,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:48:34,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:48:34,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:48:34,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:48:34,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:48:34,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:48:34,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:48:34,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:48:34,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:48:34,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:48:34,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:48:34,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:48:34,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:48:34,414 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:48:34,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:48:34,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:48:34,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:48:34,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:48:34,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:48:34,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:48:34,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:48:34,418 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:48:34,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:48:34,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:48:34,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:48:34,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:48:34,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:48:34,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:48:34,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:48:34,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:48:34,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:48:34,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:48:34,422 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:48:34,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:48:34,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:48:34,423 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_66574df8-1466-4781-8c4d-8c910787d0d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0809ab472c07ecac4481f79234cefe77a263df35fd70312ac385669cfbdfaf [2022-11-20 11:48:34,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:48:34,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:48:34,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:48:34,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:48:34,857 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:48:34,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2022-11-20 11:48:38,862 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:48:39,737 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:48:39,738 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2022-11-20 11:48:39,797 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data/67d91de56/344b4f37755449e3b6935ae6845a3351/FLAG9a926f147 [2022-11-20 11:48:39,825 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data/67d91de56/344b4f37755449e3b6935ae6845a3351 [2022-11-20 11:48:39,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:48:39,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:48:39,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:48:39,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:48:39,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:48:39,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:48:39" (1/1) ... [2022-11-20 11:48:39,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33192ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:39, skipping insertion in model container [2022-11-20 11:48:39,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:48:39" (1/1) ... [2022-11-20 11:48:39,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:48:40,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:48:40,782 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 11:48:40,789 INFO L158 Benchmark]: Toolchain (without parser) took 956.31ms. Allocated memory is still 182.5MB. Free memory was 121.6MB in the beginning and 121.8MB in the end (delta: -182.0kB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2022-11-20 11:48:40,790 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 138.4MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:48:40,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 951.03ms. Allocated memory is still 182.5MB. Free memory was 121.0MB in the beginning and 121.8MB in the end (delta: -803.7kB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2022-11-20 11:48:40,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 138.4MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 951.03ms. Allocated memory is still 182.5MB. Free memory was 121.0MB in the beginning and 121.8MB in the end (delta: -803.7kB). Peak memory consumption was 48.5MB. 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_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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_66574df8-1466-4781-8c4d-8c910787d0d9/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 fd0809ab472c07ecac4481f79234cefe77a263df35fd70312ac385669cfbdfaf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:48:43,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:48:43,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:48:43,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:48:43,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:48:43,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:48:43,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:48:43,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:48:43,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:48:43,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:48:43,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:48:43,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:48:43,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:48:43,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:48:43,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:48:43,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:48:43,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:48:43,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:48:44,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:48:44,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:48:44,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:48:44,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:48:44,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:48:44,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:48:44,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:48:44,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:48:44,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:48:44,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:48:44,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:48:44,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:48:44,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:48:44,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:48:44,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:48:44,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:48:44,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:48:44,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:48:44,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:48:44,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:48:44,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:48:44,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:48:44,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:48:44,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:48:44,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:48:44,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:48:44,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:48:44,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:48:44,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:48:44,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:48:44,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:48:44,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:48:44,121 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:48:44,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:48:44,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:48:44,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:48:44,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:48:44,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:48:44,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:48:44,125 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:48:44,125 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:48:44,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:48:44,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:48:44,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:48:44,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:48:44,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:48:44,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:48:44,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:48:44,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:48:44,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:48:44,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:48:44,128 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:48:44,129 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:48:44,129 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:48:44,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:48:44,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:48:44,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:48:44,130 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_66574df8-1466-4781-8c4d-8c910787d0d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0809ab472c07ecac4481f79234cefe77a263df35fd70312ac385669cfbdfaf [2022-11-20 11:48:44,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:48:44,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:48:44,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:48:44,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:48:44,703 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:48:44,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2022-11-20 11:48:49,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:48:50,219 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:48:50,220 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2022-11-20 11:48:50,295 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data/1d0ad70a5/c33996ff45454e9cbfa37712384ec4a1/FLAGadbca4079 [2022-11-20 11:48:50,320 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/data/1d0ad70a5/c33996ff45454e9cbfa37712384ec4a1 [2022-11-20 11:48:50,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:48:50,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:48:50,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:48:50,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:48:50,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:48:50,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:48:50" (1/1) ... [2022-11-20 11:48:50,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0107f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:50, skipping insertion in model container [2022-11-20 11:48:50,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:48:50" (1/1) ... [2022-11-20 11:48:50,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:48:50,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:48:52,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i[177976,177989] [2022-11-20 11:48:54,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:48:54,874 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:48:55,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:48:55,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i[177976,177989] [2022-11-20 11:48:55,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:48:55,763 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:48:56,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i[177976,177989] [2022-11-20 11:48:56,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:48:57,099 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:48:57,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57 WrapperNode [2022-11-20 11:48:57,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:48:57,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:48:57,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:48:57,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:48:57,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:57,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:57,673 INFO L138 Inliner]: procedures = 464, calls = 2528, calls flagged for inlining = 203, calls inlined = 188, statements flattened = 6092 [2022-11-20 11:48:57,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:48:57,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:48:57,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:48:57,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:48:57,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:57,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:57,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:57,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:57,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:58,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:58,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:58,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:58,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:48:58,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:48:58,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:48:58,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:48:58,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (1/1) ... [2022-11-20 11:48:58,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:48:58,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:48:58,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:48:58,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:48:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:48:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:48:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2022-11-20 11:48:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2022-11-20 11:48:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_total_size [2022-11-20 11:48:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_total_size [2022-11-20 11:48:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_port_list_get [2022-11-20 11:48:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_port_list_get [2022-11-20 11:48:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure __team_change_mode [2022-11-20 11:48:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_change_mode [2022-11-20 11:48:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2022-11-20 11:48:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2022-11-20 11:48:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 11:48:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 11:48:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:48:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:48:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure team_init [2022-11-20 11:48:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure team_init [2022-11-20 11:48:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure team_del_slave [2022-11-20 11:48:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure team_del_slave [2022-11-20 11:48:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_set [2022-11-20 11:48:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_set [2022-11-20 11:48:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-20 11:48:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-20 11:48:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure team_netpoll_setup [2022-11-20 11:48:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure team_netpoll_setup [2022-11-20 11:48:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-20 11:48:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-20 11:48:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 11:48:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 11:48:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 11:48:58,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 11:48:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2022-11-20 11:48:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2022-11-20 11:48:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_enabled_check [2022-11-20 11:48:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_enabled_check [2022-11-20 11:48:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure team_queue_override_fini [2022-11-20 11:48:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure team_queue_override_fini [2022-11-20 11:48:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure team_netpoll_cleanup [2022-11-20 11:48:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure team_netpoll_cleanup [2022-11-20 11:48:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_mtu [2022-11-20 11:48:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_mtu [2022-11-20 11:48:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-20 11:48:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-20 11:48:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:48:58,344 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:48:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_get_rtnl [2022-11-20 11:48:58,344 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_get_rtnl [2022-11-20 11:48:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-20 11:48:58,345 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-20 11:48:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_mac_address [2022-11-20 11:48:58,346 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_mac_address [2022-11-20 11:48:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_add [2022-11-20 11:48:58,347 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_add [2022-11-20 11:48:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_unicast [2022-11-20 11:48:58,348 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_unicast [2022-11-20 11:48:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_num_tx_queues [2022-11-20 11:48:58,348 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_num_tx_queues [2022-11-20 11:48:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_end [2022-11-20 11:48:58,349 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_end [2022-11-20 11:48:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure team_poll_controller [2022-11-20 11:48:58,349 INFO L138 BoogieDeclarations]: Found implementation of procedure team_poll_controller [2022-11-20 11:48:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:48:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure team_add_slave [2022-11-20 11:48:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure team_add_slave [2022-11-20 11:48:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure team_vlan_rx_kill_vid [2022-11-20 11:48:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure team_vlan_rx_kill_vid [2022-11-20 11:48:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del_option [2022-11-20 11:48:58,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del_option [2022-11-20 11:48:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:48:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:48:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:48:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_unregister [2022-11-20 11:48:58,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_unregister [2022-11-20 11:48:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure team_mode_put [2022-11-20 11:48:58,354 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mode_put [2022-11-20 11:48:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:48:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 11:48:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 11:48:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_trylock [2022-11-20 11:48:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_trylock [2022-11-20 11:48:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:48:58,357 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:48:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure team_refresh_port_linkup [2022-11-20 11:48:58,357 INFO L138 BoogieDeclarations]: Found implementation of procedure team_refresh_port_linkup [2022-11-20 11:48:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_new [2022-11-20 11:48:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_new [2022-11-20 11:48:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_carrier [2022-11-20 11:48:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_carrier [2022-11-20 11:48:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 11:48:58,359 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 11:48:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers [2022-11-20 11:48:58,360 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers [2022-11-20 11:48:58,361 INFO L130 BoogieDeclarations]: Found specification of procedure __team_port_change_send [2022-11-20 11:48:58,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_port_change_send [2022-11-20 11:48:58,361 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_end [2022-11-20 11:48:58,361 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_end [2022-11-20 11:48:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure team_fix_features [2022-11-20 11:48:58,362 INFO L138 BoogieDeclarations]: Found implementation of procedure team_fix_features [2022-11-20 11:48:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del_rcu [2022-11-20 11:48:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del_rcu [2022-11-20 11:48:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_upper_dev_unlink [2022-11-20 11:48:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_upper_dev_unlink [2022-11-20 11:48:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure __team_netpoll_cleanup [2022-11-20 11:48:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_netpoll_cleanup [2022-11-20 11:48:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u8 [2022-11-20 11:48:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u8 [2022-11-20 11:48:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure team_select_queue [2022-11-20 11:48:58,365 INFO L138 BoogieDeclarations]: Found implementation of procedure team_select_queue [2022-11-20 11:48:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_vid_del [2022-11-20 11:48:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_vid_del [2022-11-20 11:48:58,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:48:58,371 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:48:58,372 INFO L130 BoogieDeclarations]: Found specification of procedure team_mode_option_set [2022-11-20 11:48:58,372 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mode_option_set [2022-11-20 11:48:58,372 INFO L130 BoogieDeclarations]: Found specification of procedure __find_mode [2022-11-20 11:48:58,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_mode [2022-11-20 11:48:58,373 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_mode [2022-11-20 11:48:58,373 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_mode [2022-11-20 11:48:58,373 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-20 11:48:58,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-20 11:48:58,374 INFO L130 BoogieDeclarations]: Found specification of procedure team_ethtool_get_drvinfo [2022-11-20 11:48:58,374 INFO L138 BoogieDeclarations]: Found implementation of procedure team_ethtool_get_drvinfo [2022-11-20 11:48:58,374 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-20 11:48:58,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-20 11:48:58,375 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 11:48:58,375 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 11:48:58,375 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_put [2022-11-20 11:48:58,375 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_put [2022-11-20 11:48:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_rx_mode [2022-11-20 11:48:58,376 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_rx_mode [2022-11-20 11:48:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure team_setup [2022-11-20 11:48:58,377 INFO L138 BoogieDeclarations]: Found implementation of procedure team_setup [2022-11-20 11:48:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_index_hash [2022-11-20 11:48:58,377 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_index_hash [2022-11-20 11:48:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure genl_info_net [2022-11-20 11:48:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure genl_info_net [2022-11-20 11:48:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 11:48:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 11:48:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-20 11:48:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-20 11:48:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-20 11:48:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:48:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-20 11:48:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-20 11:48:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:48:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure team_notify_peers_fini [2022-11-20 11:48:58,380 INFO L138 BoogieDeclarations]: Found implementation of procedure team_notify_peers_fini [2022-11-20 11:48:58,380 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 11:48:58,380 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 11:48:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del_port [2022-11-20 11:48:58,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del_port [2022-11-20 11:48:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:48:58,381 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:48:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:48:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:48:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:48:58,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:48:58,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:48:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2022-11-20 11:48:58,383 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2022-11-20 11:48:58,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~C_INT [2022-11-20 11:48:58,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~C_INT [2022-11-20 11:48:58,384 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_disable [2022-11-20 11:48:58,384 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_disable [2022-11-20 11:48:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_set [2022-11-20 11:48:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_set [2022-11-20 11:48:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure team_adjust_ops [2022-11-20 11:48:58,385 INFO L138 BoogieDeclarations]: Found implementation of procedure team_adjust_ops [2022-11-20 11:48:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_rx_handler_unregister [2022-11-20 11:48:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_rx_handler_unregister [2022-11-20 11:48:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 11:48:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 11:48:58,386 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_mtu [2022-11-20 11:48:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_mtu [2022-11-20 11:48:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:48:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:48:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_del [2022-11-20 11:48:58,387 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_del [2022-11-20 11:48:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-20 11:48:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-20 11:48:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_vids_del_by_dev [2022-11-20 11:48:58,389 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_vids_del_by_dev [2022-11-20 11:48:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:48:58,390 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin [2022-11-20 11:48:58,390 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin [2022-11-20 11:48:58,390 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-20 11:48:58,390 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-20 11:48:58,391 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 11:48:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 11:48:58,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:48:58,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:48:58,391 INFO L130 BoogieDeclarations]: Found specification of procedure team_mcast_rejoin_fini [2022-11-20 11:48:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure team_mcast_rejoin_fini [2022-11-20 11:48:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_set_orig_dev_addr [2022-11-20 11:48:58,392 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_set_orig_dev_addr [2022-11-20 11:48:58,392 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_fill_one_port_get [2022-11-20 11:48:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_fill_one_port_get [2022-11-20 11:48:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:48:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_register [2022-11-20 11:48:58,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_register [2022-11-20 11:48:58,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:48:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:48:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_change_check [2022-11-20 11:48:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_change_check [2022-11-20 11:48:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:48:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:48:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:48:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:48:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:48:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-20 11:48:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-20 11:48:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure team_options_register [2022-11-20 11:48:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure team_options_register [2022-11-20 11:48:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 11:48:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 11:48:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_trim [2022-11-20 11:48:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_trim [2022-11-20 11:48:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_team_put [2022-11-20 11:48:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_team_put [2022-11-20 11:48:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_option [2022-11-20 11:48:58,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_option [2022-11-20 11:48:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_stats64 [2022-11-20 11:48:58,398 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_stats64 [2022-11-20 11:48:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 11:48:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2022-11-20 11:48:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2022-11-20 11:48:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_cancel [2022-11-20 11:48:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_cancel [2022-11-20 11:48:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 11:48:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 11:48:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2022-11-20 11:48:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2022-11-20 11:48:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_set_team_dev_addr [2022-11-20 11:48:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_set_team_dev_addr [2022-11-20 11:48:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-20 11:48:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-20 11:48:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure team_vlan_rx_add_vid [2022-11-20 11:48:58,402 INFO L138 BoogieDeclarations]: Found implementation of procedure team_vlan_rx_add_vid [2022-11-20 11:48:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 11:48:58,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 11:48:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 11:48:58,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 11:48:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head_rcu [2022-11-20 11:48:58,403 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head_rcu [2022-11-20 11:48:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2022-11-20 11:48:58,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2022-11-20 11:48:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure __team_carrier_check [2022-11-20 11:48:58,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_carrier_check [2022-11-20 11:48:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:48:58,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:48:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure nla_nest_start [2022-11-20 11:48:58,404 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_nest_start [2022-11-20 11:48:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:48:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:48:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_team_get [2022-11-20 11:48:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_team_get [2022-11-20 11:48:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure nla_len [2022-11-20 11:48:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_len [2022-11-20 11:48:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2022-11-20 11:48:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2022-11-20 11:48:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:48:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 11:48:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 11:48:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enable_netpoll [2022-11-20 11:48:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enable_netpoll [2022-11-20 11:48:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-20 11:48:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-20 11:48:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_port_del [2022-11-20 11:48:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_port_del [2022-11-20 11:48:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:48:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:48:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:48:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-20 11:48:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-20 11:48:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-20 11:48:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-20 11:48:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2022-11-20 11:48:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2022-11-20 11:48:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_cmd_options_get [2022-11-20 11:48:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_cmd_options_get [2022-11-20 11:48:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:48:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:48:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:48:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:48:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:48:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enabled [2022-11-20 11:48:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enabled [2022-11-20 11:48:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure __team_find_option [2022-11-20 11:48:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_find_option [2022-11-20 11:48:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure nla_data [2022-11-20 11:48:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_data [2022-11-20 11:48:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 11:48:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 11:48:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 11:48:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 11:48:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:48:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:48:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 11:48:58,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 11:48:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_fill_one_option_get [2022-11-20 11:48:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_fill_one_option_get [2022-11-20 11:48:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure team_is_mode_set [2022-11-20 11:48:58,411 INFO L138 BoogieDeclarations]: Found implementation of procedure team_is_mode_set [2022-11-20 11:48:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:48:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:48:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_change_check [2022-11-20 11:48:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_change_check [2022-11-20 11:48:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 11:48:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 11:48:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure team_get_num_rx_queues [2022-11-20 11:48:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure team_get_num_rx_queues [2022-11-20 11:48:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure call_netdevice_notifiers [2022-11-20 11:48:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure call_netdevice_notifiers [2022-11-20 11:48:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-11-20 11:48:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-11-20 11:48:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure __team_compute_features [2022-11-20 11:48:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_compute_features [2022-11-20 11:48:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_leave [2022-11-20 11:48:58,414 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_leave [2022-11-20 11:48:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-20 11:48:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-20 11:48:58,415 INFO L130 BoogieDeclarations]: Found specification of procedure __send_and_alloc_skb [2022-11-20 11:48:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __send_and_alloc_skb [2022-11-20 11:48:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_put [2022-11-20 11:48:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_put [2022-11-20 11:48:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:48:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:48:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:48:58,417 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:48:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-20 11:48:58,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-20 11:48:58,417 INFO L130 BoogieDeclarations]: Found specification of procedure __team_get_qom_list [2022-11-20 11:48:58,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_get_qom_list [2022-11-20 11:48:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:48:58,418 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:48:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure genlmsg_cancel [2022-11-20 11:48:58,418 INFO L138 BoogieDeclarations]: Found implementation of procedure genlmsg_cancel [2022-11-20 11:48:58,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:48:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure team_option_get [2022-11-20 11:48:58,419 INFO L138 BoogieDeclarations]: Found implementation of procedure team_option_get [2022-11-20 11:48:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:48:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:48:58,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:48:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_del [2022-11-20 11:48:58,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_del [2022-11-20 11:48:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:48:58,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:48:58,420 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_options_get [2022-11-20 11:48:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_options_get [2022-11-20 11:48:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_increment_features [2022-11-20 11:48:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_increment_features [2022-11-20 11:48:58,421 INFO L130 BoogieDeclarations]: Found specification of procedure team_open [2022-11-20 11:48:58,421 INFO L138 BoogieDeclarations]: Found implementation of procedure team_open [2022-11-20 11:48:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2022-11-20 11:48:58,422 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2022-11-20 11:48:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add_port [2022-11-20 11:48:58,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add_port [2022-11-20 11:48:58,422 INFO L130 BoogieDeclarations]: Found specification of procedure __team_queue_override_port_add [2022-11-20 11:48:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_queue_override_port_add [2022-11-20 11:48:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure __team_options_change_check [2022-11-20 11:48:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_options_change_check [2022-11-20 11:48:58,423 INFO L130 BoogieDeclarations]: Found specification of procedure __set_port_dev_addr [2022-11-20 11:48:58,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_port_dev_addr [2022-11-20 11:48:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-20 11:48:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-20 11:48:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 11:48:58,424 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 11:48:58,424 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put [2022-11-20 11:48:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put [2022-11-20 11:48:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure team_change_rx_flags [2022-11-20 11:48:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure team_change_rx_flags [2022-11-20 11:48:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure team_validate [2022-11-20 11:48:58,425 INFO L138 BoogieDeclarations]: Found implementation of procedure team_validate [2022-11-20 11:48:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_free [2022-11-20 11:48:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_free [2022-11-20 11:48:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 11:48:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 11:48:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enable [2022-11-20 11:48:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enable [2022-11-20 11:48:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 11:48:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 11:48:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure team_set_no_mode [2022-11-20 11:48:58,436 INFO L138 BoogieDeclarations]: Found implementation of procedure team_set_no_mode [2022-11-20 11:48:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 11:48:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 11:48:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_flag [2022-11-20 11:48:58,437 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_flag [2022-11-20 11:48:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_disable_netpoll [2022-11-20 11:48:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_disable_netpoll [2022-11-20 11:48:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure team_port_enter [2022-11-20 11:48:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure team_port_enter [2022-11-20 11:48:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-20 11:48:58,438 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-20 11:48:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_string [2022-11-20 11:48:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_string [2022-11-20 11:48:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 11:48:58,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 11:48:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure team_nl_send_event_options_get [2022-11-20 11:48:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure team_nl_send_event_options_get [2022-11-20 11:48:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure team_close [2022-11-20 11:48:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure team_close [2022-11-20 11:48:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure team_uninit [2022-11-20 11:48:58,440 INFO L138 BoogieDeclarations]: Found implementation of procedure team_uninit [2022-11-20 11:48:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure __team_option_inst_add [2022-11-20 11:48:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __team_option_inst_add [2022-11-20 11:48:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_skb_cb [2022-11-20 11:48:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_skb_cb [2022-11-20 11:48:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure team_newlink [2022-11-20 11:48:58,441 INFO L138 BoogieDeclarations]: Found implementation of procedure team_newlink [2022-11-20 11:49:00,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:49:00,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:49:00,866 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:49:43,859 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:49:43,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:49:43,902 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:49:43,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:43 BoogieIcfgContainer [2022-11-20 11:49:43,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:49:43,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:49:43,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:49:43,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:49:43,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:48:50" (1/3) ... [2022-11-20 11:49:43,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56748a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:43, skipping insertion in model container [2022-11-20 11:49:43,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:48:57" (2/3) ... [2022-11-20 11:49:43,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56748a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:43, skipping insertion in model container [2022-11-20 11:49:43,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:43" (3/3) ... [2022-11-20 11:49:43,929 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--team--team.ko-entry_point.cil.out.i [2022-11-20 11:49:43,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:49:43,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:49:44,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:49:44,129 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;@1db1773d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:49:44,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:49:44,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 2799 states, 1998 states have (on average 1.382882882882883) internal successors, (2763), 2048 states have internal predecessors, (2763), 612 states have call successors, (612), 188 states have call predecessors, (612), 187 states have return successors, (606), 595 states have call predecessors, (606), 606 states have call successors, (606) [2022-11-20 11:49:44,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-20 11:49:44,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:44,183 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:44,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:49:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash -585766321, now seen corresponding path program 1 times [2022-11-20 11:49:44,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:44,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992381192] [2022-11-20 11:49:44,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:44,223 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 11:49:44,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:44,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:44,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:47,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:49:47,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 11:49:47,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:49:48,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:48,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992381192] [2022-11-20 11:49:48,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992381192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:48,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:48,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:49:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563946459] [2022-11-20 11:49:48,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:48,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:49:48,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:48,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:49:48,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:49:48,096 INFO L87 Difference]: Start difference. First operand has 2799 states, 1998 states have (on average 1.382882882882883) internal successors, (2763), 2048 states have internal predecessors, (2763), 612 states have call successors, (612), 188 states have call predecessors, (612), 187 states have return successors, (606), 595 states have call predecessors, (606), 606 states have call successors, (606) Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:49:48,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:48,930 INFO L93 Difference]: Finished difference Result 5596 states and 8080 transitions. [2022-11-20 11:49:48,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:49:48,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 112 [2022-11-20 11:49:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:48,999 INFO L225 Difference]: With dead ends: 5596 [2022-11-20 11:49:48,999 INFO L226 Difference]: Without dead ends: 2782 [2022-11-20 11:49:49,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:49:49,044 INFO L413 NwaCegarLoop]: 3969 mSDtfsCounter, 2 mSDsluCounter, 7931 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11900 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:49,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11900 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:49:49,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2022-11-20 11:49:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2782. [2022-11-20 11:49:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 1989 states have (on average 1.3745600804424334) internal successors, (2734), 2031 states have internal predecessors, (2734), 606 states have call successors, (606), 187 states have call predecessors, (606), 186 states have return successors, (605), 594 states have call predecessors, (605), 605 states have call successors, (605) [2022-11-20 11:49:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3945 transitions. [2022-11-20 11:49:49,388 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3945 transitions. Word has length 112 [2022-11-20 11:49:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:49,390 INFO L495 AbstractCegarLoop]: Abstraction has 2782 states and 3945 transitions. [2022-11-20 11:49:49,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:49:49,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3945 transitions. [2022-11-20 11:49:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 11:49:49,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:49,407 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:49,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:49,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:49,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:49:49,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:49,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1367399403, now seen corresponding path program 1 times [2022-11-20 11:49:49,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:49,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102587228] [2022-11-20 11:49:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:49,627 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 11:49:49,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:49,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:49,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:53,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:49:53,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:53,170 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-20 11:49:53,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:49:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-20 11:49:53,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:53,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102587228] [2022-11-20 11:49:53,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102587228] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:49:53,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:49:53,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 11:49:53,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971400335] [2022-11-20 11:49:53,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:49:53,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:49:53,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:53,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:49:53,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:49:53,714 INFO L87 Difference]: Start difference. First operand 2782 states and 3945 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:49:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:54,731 INFO L93 Difference]: Finished difference Result 5551 states and 7922 transitions. [2022-11-20 11:49:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:49:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 116 [2022-11-20 11:49:54,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:54,758 INFO L225 Difference]: With dead ends: 5551 [2022-11-20 11:49:54,758 INFO L226 Difference]: Without dead ends: 2794 [2022-11-20 11:49:54,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:49:54,778 INFO L413 NwaCegarLoop]: 3940 mSDtfsCounter, 14 mSDsluCounter, 11809 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 15749 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:54,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 15749 Invalid, 72 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:49:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-11-20 11:49:55,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2794. [2022-11-20 11:49:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 1999 states have (on average 1.3741870935467735) internal successors, (2747), 2041 states have internal predecessors, (2747), 606 states have call successors, (606), 189 states have call predecessors, (606), 188 states have return successors, (605), 594 states have call predecessors, (605), 605 states have call successors, (605) [2022-11-20 11:49:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3958 transitions. [2022-11-20 11:49:55,069 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3958 transitions. Word has length 116 [2022-11-20 11:49:55,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:55,070 INFO L495 AbstractCegarLoop]: Abstraction has 2794 states and 3958 transitions. [2022-11-20 11:49:55,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:49:55,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3958 transitions. [2022-11-20 11:49:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 11:49:55,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:55,076 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:55,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:55,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:55,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:49:55,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:55,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1703953314, now seen corresponding path program 2 times [2022-11-20 11:49:55,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:55,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408816408] [2022-11-20 11:49:55,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:49:55,310 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 11:49:55,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:55,311 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:55,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:49:58,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:49:58,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:49:58,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:49:58,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-11-20 11:49:58,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:49:58,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:58,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408816408] [2022-11-20 11:49:58,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408816408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:58,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:58,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:49:58,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502141789] [2022-11-20 11:49:58,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:58,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:49:58,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:49:58,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:58,506 INFO L87 Difference]: Start difference. First operand 2794 states and 3958 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:49:59,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:59,260 INFO L93 Difference]: Finished difference Result 8262 states and 11712 transitions. [2022-11-20 11:49:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:49:59,261 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 119 [2022-11-20 11:49:59,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:59,310 INFO L225 Difference]: With dead ends: 8262 [2022-11-20 11:49:59,310 INFO L226 Difference]: Without dead ends: 5507 [2022-11-20 11:49:59,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 11:49:59,331 INFO L413 NwaCegarLoop]: 4537 mSDtfsCounter, 3856 mSDsluCounter, 3916 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 8453 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:59,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3856 Valid, 8453 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:49:59,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2022-11-20 11:49:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 5507. [2022-11-20 11:49:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5507 states, 3944 states have (on average 1.3767748478701824) internal successors, (5430), 4027 states have internal predecessors, (5430), 1188 states have call successors, (1188), 375 states have call predecessors, (1188), 374 states have return successors, (1187), 1165 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-20 11:49:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5507 states to 5507 states and 7805 transitions. [2022-11-20 11:49:59,782 INFO L78 Accepts]: Start accepts. Automaton has 5507 states and 7805 transitions. Word has length 119 [2022-11-20 11:49:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:59,783 INFO L495 AbstractCegarLoop]: Abstraction has 5507 states and 7805 transitions. [2022-11-20 11:49:59,784 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), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:49:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 5507 states and 7805 transitions. [2022-11-20 11:49:59,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-20 11:49:59,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:59,788 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:59,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:00,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:00,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:50:00,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1106416488, now seen corresponding path program 1 times [2022-11-20 11:50:00,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:00,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683113852] [2022-11-20 11:50:00,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:00,012 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 11:50:00,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:00,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:00,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:03,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:50:03,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:50:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-11-20 11:50:03,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:50:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-20 11:50:04,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:50:04,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683113852] [2022-11-20 11:50:04,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683113852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:50:04,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:50:04,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 11:50:04,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614539477] [2022-11-20 11:50:04,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:50:04,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:50:04,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:50:04,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:50:04,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:50:04,536 INFO L87 Difference]: Start difference. First operand 5507 states and 7805 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:50:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:06,534 INFO L93 Difference]: Finished difference Result 11005 states and 15699 transitions. [2022-11-20 11:50:06,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:50:06,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2022-11-20 11:50:06,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:06,591 INFO L225 Difference]: With dead ends: 11005 [2022-11-20 11:50:06,592 INFO L226 Difference]: Without dead ends: 5519 [2022-11-20 11:50:06,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:50:06,629 INFO L413 NwaCegarLoop]: 3938 mSDtfsCounter, 28 mSDsluCounter, 23602 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 27540 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:06,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 27540 Invalid, 99 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:50:06,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5519 states. [2022-11-20 11:50:06,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5519 to 5519. [2022-11-20 11:50:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 3955 states have (on average 1.3767383059418459) internal successors, (5445), 4038 states have internal predecessors, (5445), 1188 states have call successors, (1188), 376 states have call predecessors, (1188), 375 states have return successors, (1187), 1165 states have call predecessors, (1187), 1187 states have call successors, (1187) [2022-11-20 11:50:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 7820 transitions. [2022-11-20 11:50:06,981 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 7820 transitions. Word has length 118 [2022-11-20 11:50:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 5519 states and 7820 transitions. [2022-11-20 11:50:06,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:50:06,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 7820 transitions. [2022-11-20 11:50:06,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 11:50:06,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:06,988 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:07,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:07,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:07,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:50:07,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:07,216 INFO L85 PathProgramCache]: Analyzing trace with hash -642095912, now seen corresponding path program 2 times [2022-11-20 11:50:07,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:07,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076414609] [2022-11-20 11:50:07,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:50:07,219 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 11:50:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:07,221 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:07,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:10,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:50:10,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:50:10,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:50:10,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:50:10,833 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-11-20 11:50:10,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:50:10,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:50:10,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076414609] [2022-11-20 11:50:10,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076414609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:10,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:10,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:50:10,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5598585] [2022-11-20 11:50:10,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:10,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:50:10,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:50:10,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:50:10,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:50:10,842 INFO L87 Difference]: Start difference. First operand 5519 states and 7820 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 11:50:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:12,099 INFO L93 Difference]: Finished difference Result 16452 states and 23582 transitions. [2022-11-20 11:50:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:50:12,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2022-11-20 11:50:12,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:12,217 INFO L225 Difference]: With dead ends: 16452 [2022-11-20 11:50:12,217 INFO L226 Difference]: Without dead ends: 10967 [2022-11-20 11:50:12,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:50:12,260 INFO L413 NwaCegarLoop]: 4596 mSDtfsCounter, 3901 mSDsluCounter, 13147 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 17743 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:12,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3901 Valid, 17743 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:50:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2022-11-20 11:50:13,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 10959. [2022-11-20 11:50:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10959 states, 7854 states have (on average 1.3777692895339955) internal successors, (10821), 8020 states have internal predecessors, (10821), 2359 states have call successors, (2359), 746 states have call predecessors, (2359), 745 states have return successors, (2494), 2314 states have call predecessors, (2494), 2358 states have call successors, (2494) [2022-11-20 11:50:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10959 states to 10959 states and 15674 transitions. [2022-11-20 11:50:13,141 INFO L78 Accepts]: Start accepts. Automaton has 10959 states and 15674 transitions. Word has length 122 [2022-11-20 11:50:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:13,143 INFO L495 AbstractCegarLoop]: Abstraction has 10959 states and 15674 transitions. [2022-11-20 11:50:13,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 11:50:13,144 INFO L276 IsEmpty]: Start isEmpty. Operand 10959 states and 15674 transitions. [2022-11-20 11:50:13,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-20 11:50:13,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:13,191 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:13,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:13,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:13,405 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:50:13,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:13,406 INFO L85 PathProgramCache]: Analyzing trace with hash -206559561, now seen corresponding path program 1 times [2022-11-20 11:50:13,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261916772] [2022-11-20 11:50:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:13,409 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 11:50:13,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:13,411 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:13,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:17,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2290 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:50:17,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:50:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 121 proven. 21 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-11-20 11:50:18,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:50:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 46 proven. 37 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-11-20 11:50:20,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:50:20,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261916772] [2022-11-20 11:50:20,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261916772] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:50:20,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:50:20,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-20 11:50:20,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705214266] [2022-11-20 11:50:20,213 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:50:20,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:50:20,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:50:20,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:50:20,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:50:20,216 INFO L87 Difference]: Start difference. First operand 10959 states and 15674 transitions. Second operand has 18 states, 18 states have (on average 13.38888888888889) internal successors, (241), 18 states have internal predecessors, (241), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-20 11:50:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:24,497 INFO L93 Difference]: Finished difference Result 21927 states and 31662 transitions. [2022-11-20 11:50:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:50:24,499 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.38888888888889) internal successors, (241), 18 states have internal predecessors, (241), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 259 [2022-11-20 11:50:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:24,593 INFO L225 Difference]: With dead ends: 21927 [2022-11-20 11:50:24,593 INFO L226 Difference]: Without dead ends: 10977 [2022-11-20 11:50:24,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2022-11-20 11:50:24,657 INFO L413 NwaCegarLoop]: 3942 mSDtfsCounter, 64 mSDsluCounter, 47235 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 51177 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:24,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 51177 Invalid, 345 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [73 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 11:50:24,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10977 states. [2022-11-20 11:50:25,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10977 to 10977. [2022-11-20 11:50:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10977 states, 7872 states have (on average 1.3765243902439024) internal successors, (10836), 8038 states have internal predecessors, (10836), 2359 states have call successors, (2359), 746 states have call predecessors, (2359), 745 states have return successors, (2494), 2314 states have call predecessors, (2494), 2358 states have call successors, (2494) [2022-11-20 11:50:25,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10977 states to 10977 states and 15689 transitions. [2022-11-20 11:50:25,476 INFO L78 Accepts]: Start accepts. Automaton has 10977 states and 15689 transitions. Word has length 259 [2022-11-20 11:50:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:25,477 INFO L495 AbstractCegarLoop]: Abstraction has 10977 states and 15689 transitions. [2022-11-20 11:50:25,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.38888888888889) internal successors, (241), 18 states have internal predecessors, (241), 2 states have call successors, (56), 2 states have call predecessors, (56), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-20 11:50:25,478 INFO L276 IsEmpty]: Start isEmpty. Operand 10977 states and 15689 transitions. [2022-11-20 11:50:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-20 11:50:25,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:25,519 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 11, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:25,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:25,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:25,736 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:50:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1937934035, now seen corresponding path program 1 times [2022-11-20 11:50:25,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:25,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013864950] [2022-11-20 11:50:25,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:25,837 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 11:50:25,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:25,839 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:25,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:29,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:50:29,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:50:30,081 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-11-20 11:50:30,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:50:30,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:50:30,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013864950] [2022-11-20 11:50:30,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013864950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:30,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:30,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:50:30,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109504947] [2022-11-20 11:50:30,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:30,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:50:30,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:50:30,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:50:30,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:50:30,087 INFO L87 Difference]: Start difference. First operand 10977 states and 15689 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 11:50:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:31,395 INFO L93 Difference]: Finished difference Result 32615 states and 46589 transitions. [2022-11-20 11:50:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:50:31,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 239 [2022-11-20 11:50:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:31,548 INFO L225 Difference]: With dead ends: 32615 [2022-11-20 11:50:31,548 INFO L226 Difference]: Without dead ends: 21689 [2022-11-20 11:50:31,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 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 11:50:31,605 INFO L413 NwaCegarLoop]: 4662 mSDtfsCounter, 3852 mSDsluCounter, 3892 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3852 SdHoareTripleChecker+Valid, 8554 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:31,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3852 Valid, 8554 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:50:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21689 states. [2022-11-20 11:50:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21689 to 21667. [2022-11-20 11:50:33,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21667 states, 15550 states have (on average 1.3768488745980707) internal successors, (21410), 15868 states have internal predecessors, (21410), 4635 states have call successors, (4635), 1482 states have call predecessors, (4635), 1481 states have return successors, (4896), 4552 states have call predecessors, (4896), 4634 states have call successors, (4896) [2022-11-20 11:50:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21667 states to 21667 states and 30941 transitions. [2022-11-20 11:50:33,466 INFO L78 Accepts]: Start accepts. Automaton has 21667 states and 30941 transitions. Word has length 239 [2022-11-20 11:50:33,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:33,467 INFO L495 AbstractCegarLoop]: Abstraction has 21667 states and 30941 transitions. [2022-11-20 11:50:33,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 11:50:33,468 INFO L276 IsEmpty]: Start isEmpty. Operand 21667 states and 30941 transitions. [2022-11-20 11:50:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-20 11:50:33,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:33,548 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:33,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:33,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:33,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:50:33,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:33,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1572092076, now seen corresponding path program 1 times [2022-11-20 11:50:33,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:33,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314804730] [2022-11-20 11:50:33,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:33,768 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 11:50:33,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:33,770 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:33,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:38,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 2339 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:50:38,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:50:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-11-20 11:50:38,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:50:38,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:50:38,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314804730] [2022-11-20 11:50:38,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314804730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:38,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:38,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:50:38,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003804183] [2022-11-20 11:50:38,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:38,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:50:38,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:50:38,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:50:38,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:50:38,173 INFO L87 Difference]: Start difference. First operand 21667 states and 30941 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-20 11:50:41,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:41,023 INFO L93 Difference]: Finished difference Result 52951 states and 75382 transitions. [2022-11-20 11:50:41,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:50:41,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 271 [2022-11-20 11:50:41,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:41,238 INFO L225 Difference]: With dead ends: 52951 [2022-11-20 11:50:41,238 INFO L226 Difference]: Without dead ends: 31335 [2022-11-20 11:50:41,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 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 11:50:41,452 INFO L413 NwaCegarLoop]: 6798 mSDtfsCounter, 3199 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 10546 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:41,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3199 Valid, 10546 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 11:50:41,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31335 states. [2022-11-20 11:50:43,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31335 to 31313. [2022-11-20 11:50:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31313 states, 22466 states have (on average 1.372340425531915) internal successors, (30831), 22944 states have internal predecessors, (30831), 6633 states have call successors, (6633), 2214 states have call predecessors, (6633), 2213 states have return successors, (7014), 6510 states have call predecessors, (7014), 6632 states have call successors, (7014) [2022-11-20 11:50:44,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31313 states to 31313 states and 44478 transitions. [2022-11-20 11:50:44,191 INFO L78 Accepts]: Start accepts. Automaton has 31313 states and 44478 transitions. Word has length 271 [2022-11-20 11:50:44,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:44,192 INFO L495 AbstractCegarLoop]: Abstraction has 31313 states and 44478 transitions. [2022-11-20 11:50:44,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-20 11:50:44,192 INFO L276 IsEmpty]: Start isEmpty. Operand 31313 states and 44478 transitions. [2022-11-20 11:50:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-20 11:50:44,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:44,274 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:44,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:44,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:44,488 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:50:44,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash -587511639, now seen corresponding path program 1 times [2022-11-20 11:50:44,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:44,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070426274] [2022-11-20 11:50:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:44,492 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 11:50:44,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:44,494 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:44,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:48,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:50:48,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:50:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-20 11:50:49,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:50:49,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:50:49,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070426274] [2022-11-20 11:50:49,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070426274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:49,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:49,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:50:49,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944495980] [2022-11-20 11:50:49,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:49,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:50:49,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:50:49,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:50:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:50:49,101 INFO L87 Difference]: Start difference. First operand 31313 states and 44478 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-20 11:50:50,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:51,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:53,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:53,997 INFO L93 Difference]: Finished difference Result 62888 states and 89279 transitions. [2022-11-20 11:50:53,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:50:53,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 314 [2022-11-20 11:50:53,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:54,439 INFO L225 Difference]: With dead ends: 62888 [2022-11-20 11:50:54,440 INFO L226 Difference]: Without dead ends: 31546 [2022-11-20 11:50:54,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:50:54,593 INFO L413 NwaCegarLoop]: 7777 mSDtfsCounter, 3873 mSDsluCounter, 19463 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3874 SdHoareTripleChecker+Valid, 27240 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:54,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3874 Valid, 27240 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 11:50:54,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31546 states. [2022-11-20 11:50:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31546 to 31252. [2022-11-20 11:50:57,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31252 states, 22433 states have (on average 1.372531538358668) internal successors, (30790), 22904 states have internal predecessors, (30790), 6619 states have call successors, (6619), 2200 states have call predecessors, (6619), 2199 states have return successors, (7000), 6496 states have call predecessors, (7000), 6618 states have call successors, (7000) [2022-11-20 11:50:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31252 states to 31252 states and 44409 transitions. [2022-11-20 11:50:57,407 INFO L78 Accepts]: Start accepts. Automaton has 31252 states and 44409 transitions. Word has length 314 [2022-11-20 11:50:57,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:57,408 INFO L495 AbstractCegarLoop]: Abstraction has 31252 states and 44409 transitions. [2022-11-20 11:50:57,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-20 11:50:57,409 INFO L276 IsEmpty]: Start isEmpty. Operand 31252 states and 44409 transitions. [2022-11-20 11:50:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-20 11:50:57,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:57,465 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 13, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:57,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:57,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:57,692 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:50:57,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:57,693 INFO L85 PathProgramCache]: Analyzing trace with hash 417408432, now seen corresponding path program 1 times [2022-11-20 11:50:57,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:57,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571306106] [2022-11-20 11:50:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:57,696 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 11:50:57,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:57,698 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:50:57,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:02,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:51:02,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-11-20 11:51:02,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:02,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571306106] [2022-11-20 11:51:02,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571306106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:02,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:02,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:51:02,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318704993] [2022-11-20 11:51:02,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:02,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:51:02,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:02,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:51:02,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:02,758 INFO L87 Difference]: Start difference. First operand 31252 states and 44409 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 7 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (38), 6 states have call predecessors, (38), 7 states have call successors, (38) [2022-11-20 11:51:06,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:06,164 INFO L93 Difference]: Finished difference Result 62689 states and 89973 transitions. [2022-11-20 11:51:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:51:06,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 7 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (38), 6 states have call predecessors, (38), 7 states have call successors, (38) Word has length 301 [2022-11-20 11:51:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:06,326 INFO L225 Difference]: With dead ends: 62689 [2022-11-20 11:51:06,326 INFO L226 Difference]: Without dead ends: 31492 [2022-11-20 11:51:06,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:51:06,499 INFO L413 NwaCegarLoop]: 3936 mSDtfsCounter, 53 mSDsluCounter, 19616 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 23552 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:06,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 23552 Invalid, 118 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 11:51:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31492 states. [2022-11-20 11:51:08,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31492 to 31492. [2022-11-20 11:51:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31492 states, 22597 states have (on average 1.3707129264946674) internal successors, (30974), 23076 states have internal predecessors, (30974), 6675 states have call successors, (6675), 2220 states have call predecessors, (6675), 2219 states have return successors, (7108), 6552 states have call predecessors, (7108), 6674 states have call successors, (7108) [2022-11-20 11:51:08,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31492 states to 31492 states and 44757 transitions. [2022-11-20 11:51:08,745 INFO L78 Accepts]: Start accepts. Automaton has 31492 states and 44757 transitions. Word has length 301 [2022-11-20 11:51:08,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:08,751 INFO L495 AbstractCegarLoop]: Abstraction has 31492 states and 44757 transitions. [2022-11-20 11:51:08,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 7 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (38), 6 states have call predecessors, (38), 7 states have call successors, (38) [2022-11-20 11:51:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 31492 states and 44757 transitions. [2022-11-20 11:51:08,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-20 11:51:08,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:08,838 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:08,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:09,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:09,052 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:51:09,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:09,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2069822874, now seen corresponding path program 1 times [2022-11-20 11:51:09,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:09,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119178263] [2022-11-20 11:51:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:09,057 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 11:51:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:09,059 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:09,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:13,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:51:13,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2022-11-20 11:51:14,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:14,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:14,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119178263] [2022-11-20 11:51:14,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119178263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:14,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:14,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:14,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237687221] [2022-11-20 11:51:14,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:14,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:51:14,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:14,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:51:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:51:14,056 INFO L87 Difference]: Start difference. First operand 31492 states and 44757 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 11:51:15,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:15,757 INFO L93 Difference]: Finished difference Result 63005 states and 90703 transitions. [2022-11-20 11:51:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:51:15,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 313 [2022-11-20 11:51:15,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:16,025 INFO L225 Difference]: With dead ends: 63005 [2022-11-20 11:51:16,026 INFO L226 Difference]: Without dead ends: 31568 [2022-11-20 11:51:16,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:51:16,109 INFO L413 NwaCegarLoop]: 3942 mSDtfsCounter, 2 mSDsluCounter, 11805 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15747 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:16,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15747 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:51:16,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31568 states. [2022-11-20 11:51:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31568 to 31552. [2022-11-20 11:51:17,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31552 states, 22639 states have (on average 1.3700251777905386) internal successors, (31016), 23124 states have internal predecessors, (31016), 6675 states have call successors, (6675), 2220 states have call predecessors, (6675), 2237 states have return successors, (7152), 6564 states have call predecessors, (7152), 6674 states have call successors, (7152) [2022-11-20 11:51:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31552 states to 31552 states and 44843 transitions. [2022-11-20 11:51:18,032 INFO L78 Accepts]: Start accepts. Automaton has 31552 states and 44843 transitions. Word has length 313 [2022-11-20 11:51:18,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:18,033 INFO L495 AbstractCegarLoop]: Abstraction has 31552 states and 44843 transitions. [2022-11-20 11:51:18,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-20 11:51:18,034 INFO L276 IsEmpty]: Start isEmpty. Operand 31552 states and 44843 transitions. [2022-11-20 11:51:18,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-20 11:51:18,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:18,116 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 13, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:18,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:18,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:18,344 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:51:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:18,344 INFO L85 PathProgramCache]: Analyzing trace with hash 169995955, now seen corresponding path program 1 times [2022-11-20 11:51:18,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:18,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803209360] [2022-11-20 11:51:18,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:18,347 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 11:51:18,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:18,349 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:18,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:22,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:51:22,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2022-11-20 11:51:23,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:23,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:23,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803209360] [2022-11-20 11:51:23,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803209360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:23,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:23,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:51:23,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085511218] [2022-11-20 11:51:23,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:23,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:51:23,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:23,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:51:23,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:51:23,242 INFO L87 Difference]: Start difference. First operand 31552 states and 44843 transitions. Second operand has 10 states, 10 states have (on average 15.7) internal successors, (157), 8 states have internal predecessors, (157), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 11:51:26,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:26,223 INFO L93 Difference]: Finished difference Result 63161 states and 90903 transitions. [2022-11-20 11:51:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:51:26,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 8 states have internal predecessors, (157), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) Word has length 298 [2022-11-20 11:51:26,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:26,355 INFO L225 Difference]: With dead ends: 63161 [2022-11-20 11:51:26,356 INFO L226 Difference]: Without dead ends: 31664 [2022-11-20 11:51:26,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:51:26,478 INFO L413 NwaCegarLoop]: 3965 mSDtfsCounter, 17 mSDsluCounter, 31659 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 35624 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:26,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 35624 Invalid, 110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:51:26,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31664 states. [2022-11-20 11:51:28,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31664 to 31624. [2022-11-20 11:51:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31624 states, 22693 states have (on average 1.368615872736086) internal successors, (31058), 23178 states have internal predecessors, (31058), 6681 states have call successors, (6681), 2220 states have call predecessors, (6681), 2249 states have return successors, (7176), 6582 states have call predecessors, (7176), 6680 states have call successors, (7176) [2022-11-20 11:51:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31624 states to 31624 states and 44915 transitions. [2022-11-20 11:51:28,457 INFO L78 Accepts]: Start accepts. Automaton has 31624 states and 44915 transitions. Word has length 298 [2022-11-20 11:51:28,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:28,458 INFO L495 AbstractCegarLoop]: Abstraction has 31624 states and 44915 transitions. [2022-11-20 11:51:28,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.7) internal successors, (157), 8 states have internal predecessors, (157), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 11:51:28,459 INFO L276 IsEmpty]: Start isEmpty. Operand 31624 states and 44915 transitions. [2022-11-20 11:51:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-20 11:51:28,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:28,501 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:28,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:28,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:28,702 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:51:28,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash -186194367, now seen corresponding path program 1 times [2022-11-20 11:51:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:28,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326190420] [2022-11-20 11:51:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:28,706 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 11:51:28,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:28,708 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:28,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:51:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:33,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-20 11:51:33,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:33,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 11:51:33,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 11:51:36,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 11:51:36,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 11:51:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2022-11-20 11:51:36,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:36,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:36,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326190420] [2022-11-20 11:51:36,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326190420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:36,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:36,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 11:51:36,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855054868] [2022-11-20 11:51:36,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:36,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 11:51:36,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:36,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 11:51:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:51:36,787 INFO L87 Difference]: Start difference. First operand 31624 states and 44915 transitions. Second operand has 19 states, 19 states have (on average 9.105263157894736) internal successors, (173), 15 states have internal predecessors, (173), 6 states have call successors, (43), 4 states have call predecessors, (43), 6 states have return successors, (42), 8 states have call predecessors, (42), 6 states have call successors, (42) [2022-11-20 11:51:41,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:51:43,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:51:45,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:19,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:21,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:28,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:30,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:31,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:34,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:35,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:37,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:51,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:12,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:16,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:28,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:42,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:44,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:46,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:55,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:57,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:42,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:56,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:56,602 INFO L93 Difference]: Finished difference Result 66513 states and 96297 transitions. [2022-11-20 11:54:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 11:54:56,604 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.105263157894736) internal successors, (173), 15 states have internal predecessors, (173), 6 states have call successors, (43), 4 states have call predecessors, (43), 6 states have return successors, (42), 8 states have call predecessors, (42), 6 states have call successors, (42) Word has length 326 [2022-11-20 11:54:56,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:56,742 INFO L225 Difference]: With dead ends: 66513 [2022-11-20 11:54:56,742 INFO L226 Difference]: Without dead ends: 34944 [2022-11-20 11:54:56,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2022-11-20 11:54:56,845 INFO L413 NwaCegarLoop]: 2948 mSDtfsCounter, 1455 mSDsluCounter, 37950 mSDsCounter, 0 mSdLazyCounter, 20089 mSolverCounterSat, 631 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 185.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 40898 SdHoareTripleChecker+Invalid, 22470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 20089 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 1741 IncrementalHoareTripleChecker+Unchecked, 195.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:56,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 40898 Invalid, 22470 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [631 Valid, 20089 Invalid, 9 Unknown, 1741 Unchecked, 195.0s Time] [2022-11-20 11:54:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34944 states. [2022-11-20 11:54:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34944 to 32722. [2022-11-20 11:54:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32722 states, 23413 states have (on average 1.3641993764148124) internal successors, (31940), 23964 states have internal predecessors, (31940), 6891 states have call successors, (6891), 2232 states have call predecessors, (6891), 2417 states have return successors, (7752), 6864 states have call predecessors, (7752), 6890 states have call successors, (7752) [2022-11-20 11:54:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32722 states to 32722 states and 46583 transitions. [2022-11-20 11:54:58,962 INFO L78 Accepts]: Start accepts. Automaton has 32722 states and 46583 transitions. Word has length 326 [2022-11-20 11:54:58,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:58,963 INFO L495 AbstractCegarLoop]: Abstraction has 32722 states and 46583 transitions. [2022-11-20 11:54:58,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.105263157894736) internal successors, (173), 15 states have internal predecessors, (173), 6 states have call successors, (43), 4 states have call predecessors, (43), 6 states have return successors, (42), 8 states have call predecessors, (42), 6 states have call successors, (42) [2022-11-20 11:54:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 32722 states and 46583 transitions. [2022-11-20 11:54:59,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-20 11:54:59,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:59,001 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:59,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:54:59,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:54:59,202 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:54:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:59,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1682571260, now seen corresponding path program 1 times [2022-11-20 11:54:59,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:59,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260513371] [2022-11-20 11:54:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:59,206 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 11:54:59,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:59,207 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:54:59,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:55:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:03,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 2591 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:03,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:03,510 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2022-11-20 11:55:03,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:03,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:03,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260513371] [2022-11-20 11:55:03,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260513371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:03,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:03,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:55:03,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000460322] [2022-11-20 11:55:03,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:03,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:55:03,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:03,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:55:03,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:03,513 INFO L87 Difference]: Start difference. First operand 32722 states and 46583 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-20 11:55:05,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:05,375 INFO L93 Difference]: Finished difference Result 65677 states and 94693 transitions. [2022-11-20 11:55:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:55:05,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 328 [2022-11-20 11:55:05,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:05,499 INFO L225 Difference]: With dead ends: 65677 [2022-11-20 11:55:05,499 INFO L226 Difference]: Without dead ends: 33010 [2022-11-20 11:55:05,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:05,586 INFO L413 NwaCegarLoop]: 3962 mSDtfsCounter, 27 mSDsluCounter, 11824 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 15786 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:05,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 15786 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:55:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33010 states. [2022-11-20 11:55:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33010 to 32770. [2022-11-20 11:55:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32770 states, 23449 states have (on average 1.3636402405219838) internal successors, (31976), 24000 states have internal predecessors, (31976), 6891 states have call successors, (6891), 2232 states have call predecessors, (6891), 2429 states have return successors, (7806), 6876 states have call predecessors, (7806), 6890 states have call successors, (7806) [2022-11-20 11:55:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32770 states to 32770 states and 46673 transitions. [2022-11-20 11:55:07,089 INFO L78 Accepts]: Start accepts. Automaton has 32770 states and 46673 transitions. Word has length 328 [2022-11-20 11:55:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:07,090 INFO L495 AbstractCegarLoop]: Abstraction has 32770 states and 46673 transitions. [2022-11-20 11:55:07,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-20 11:55:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 32770 states and 46673 transitions. [2022-11-20 11:55:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-20 11:55:07,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:07,151 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:07,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:07,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:55:07,376 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:55:07,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:07,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1584679690, now seen corresponding path program 1 times [2022-11-20 11:55:07,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:07,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47892737] [2022-11-20 11:55:07,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:07,378 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 11:55:07,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:07,379 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:55:07,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:55:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:11,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 2596 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:55:11,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-20 11:55:11,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:11,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:11,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47892737] [2022-11-20 11:55:11,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47892737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:11,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:11,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:11,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481808023] [2022-11-20 11:55:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:11,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:55:11,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:11,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:11,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:11,367 INFO L87 Difference]: Start difference. First operand 32770 states and 46673 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-20 11:55:14,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:14,588 INFO L93 Difference]: Finished difference Result 85912 states and 122243 transitions. [2022-11-20 11:55:14,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:14,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 336 [2022-11-20 11:55:14,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:14,999 INFO L225 Difference]: With dead ends: 85912 [2022-11-20 11:55:14,999 INFO L226 Difference]: Without dead ends: 53197 [2022-11-20 11:55:15,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 334 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 11:55:15,088 INFO L413 NwaCegarLoop]: 5491 mSDtfsCounter, 3458 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3458 SdHoareTripleChecker+Valid, 9247 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:15,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3458 Valid, 9247 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 11:55:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53197 states. [2022-11-20 11:55:17,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53197 to 53164. [2022-11-20 11:55:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53164 states, 38093 states have (on average 1.354579581550416) internal successors, (51600), 38996 states have internal predecessors, (51600), 11071 states have call successors, (11071), 3672 states have call predecessors, (11071), 3999 states have return successors, (12536), 11052 states have call predecessors, (12536), 11070 states have call successors, (12536) [2022-11-20 11:55:18,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53164 states to 53164 states and 75207 transitions. [2022-11-20 11:55:18,013 INFO L78 Accepts]: Start accepts. Automaton has 53164 states and 75207 transitions. Word has length 336 [2022-11-20 11:55:18,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:18,014 INFO L495 AbstractCegarLoop]: Abstraction has 53164 states and 75207 transitions. [2022-11-20 11:55:18,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-20 11:55:18,014 INFO L276 IsEmpty]: Start isEmpty. Operand 53164 states and 75207 transitions. [2022-11-20 11:55:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-20 11:55:18,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:18,096 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:18,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-11-20 11:55:18,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:55:18,320 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:55:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash 961749506, now seen corresponding path program 1 times [2022-11-20 11:55:18,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:18,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759149662] [2022-11-20 11:55:18,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:18,323 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 11:55:18,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:18,324 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/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 11:55:18,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66574df8-1466-4781-8c4d-8c910787d0d9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:55:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:22,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 2596 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:55:22,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-11-20 11:55:23,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:23,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:23,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759149662] [2022-11-20 11:55:23,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759149662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:23,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:23,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:55:23,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300063142] [2022-11-20 11:55:23,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:23,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:55:23,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:23,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:55:23,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:55:23,164 INFO L87 Difference]: Start difference. First operand 53164 states and 75207 transitions. Second operand has 10 states, 10 states have (on average 18.1) internal successors, (181), 7 states have internal predecessors, (181), 2 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (43), 5 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-20 11:55:27,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:27,004 INFO L93 Difference]: Finished difference Result 106573 states and 152279 transitions. [2022-11-20 11:55:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:55:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.1) internal successors, (181), 7 states have internal predecessors, (181), 2 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (43), 5 states have call predecessors, (43), 2 states have call successors, (43) Word has length 336 [2022-11-20 11:55:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:27,226 INFO L225 Difference]: With dead ends: 106573 [2022-11-20 11:55:27,226 INFO L226 Difference]: Without dead ends: 53464 [2022-11-20 11:55:27,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:55:27,378 INFO L413 NwaCegarLoop]: 3943 mSDtfsCounter, 4 mSDsluCounter, 31507 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 35450 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:27,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 35450 Invalid, 80 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:55:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53464 states.