./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--ethernet--micrel--ks8842.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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--ethernet--micrel--ks8842.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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_60e586b6-b6f5-476b-b575-77f38cb66f4b/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 aaab35a91d1712a4db1ee4982d280cf380b8393a76dde8325418650d577af40c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:32:40,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:40,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:40,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:40,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:40,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:40,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:40,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:40,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:40,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:40,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:40,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:40,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:40,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:40,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:40,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:40,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:40,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:40,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:40,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:40,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:40,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:40,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:40,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:40,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:40,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:40,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:40,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:40,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:40,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:40,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:40,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:40,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:40,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:40,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:40,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:40,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:40,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:40,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:40,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:40,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:40,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:32:40,509 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:40,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:40,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:40,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:40,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:40,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:40,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:40,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:40,513 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:40,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:40,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:32:40,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:40,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:40,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:40,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:40,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:40,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:40,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:40,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:40,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:40,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:40,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:40,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:40,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:40,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:40,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:32:40,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:32:40,518 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:40,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:40,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:40,519 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_60e586b6-b6f5-476b-b575-77f38cb66f4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaab35a91d1712a4db1ee4982d280cf380b8393a76dde8325418650d577af40c [2022-11-20 10:32:40,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:40,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:40,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:40,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:40,833 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:40,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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--ethernet--micrel--ks8842.ko-entry_point.cil.out.i [2022-11-20 10:32:43,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:44,457 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:44,458 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8842.ko-entry_point.cil.out.i [2022-11-20 10:32:44,502 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data/28f5807d9/ffcda2c3a72b410e8e82590d12bd7907/FLAG884fb147a [2022-11-20 10:32:44,521 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data/28f5807d9/ffcda2c3a72b410e8e82590d12bd7907 [2022-11-20 10:32:44,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:44,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:44,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:44,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:44,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:44,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:44" (1/1) ... [2022-11-20 10:32:44,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c6f57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:44, skipping insertion in model container [2022-11-20 10:32:44,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:44" (1/1) ... [2022-11-20 10:32:44,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:44,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:45,238 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:32:45,244 INFO L158 Benchmark]: Toolchain (without parser) took 712.90ms. Allocated memory is still 146.8MB. Free memory was 100.7MB in the beginning and 100.7MB in the end (delta: -50.5kB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-11-20 10:32:45,245 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 146.8MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:32:45,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.29ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 100.7MB in the end (delta: -295.0kB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-11-20 10:32:45,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 146.8MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.29ms. Allocated memory is still 146.8MB. Free memory was 100.4MB in the beginning and 100.7MB in the end (delta: -295.0kB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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--ethernet--micrel--ks8842.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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_60e586b6-b6f5-476b-b575-77f38cb66f4b/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 aaab35a91d1712a4db1ee4982d280cf380b8393a76dde8325418650d577af40c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:32:47,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:47,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:47,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:47,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:47,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:47,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:47,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:47,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:47,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:47,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:47,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:47,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:47,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:47,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:47,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:47,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:47,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:47,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:47,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:47,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:47,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:47,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:47,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:47,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:47,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:47,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:47,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:47,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:47,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:47,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:47,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:47,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:47,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:47,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:47,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:47,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:47,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:47,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:47,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:47,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:47,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:32:47,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:47,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:47,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:47,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:47,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:47,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:47,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:47,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:47,633 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:47,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:47,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:47,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:47,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:47,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:47,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:32:47,635 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:32:47,635 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:32:47,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:47,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:47,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:47,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:47,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:47,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:47,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:47,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:47,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:47,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:47,637 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:32:47,638 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:32:47,638 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:47,638 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:47,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:47,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:32:47,639 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_60e586b6-b6f5-476b-b575-77f38cb66f4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaab35a91d1712a4db1ee4982d280cf380b8393a76dde8325418650d577af40c [2022-11-20 10:32:48,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:48,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:48,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:48,132 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:48,132 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:48,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/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--ethernet--micrel--ks8842.ko-entry_point.cil.out.i [2022-11-20 10:32:51,386 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:52,062 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:52,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8842.ko-entry_point.cil.out.i [2022-11-20 10:32:52,107 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data/fcc562f01/c8017dbbba744b9db47edcb12d21b4df/FLAG8501f61e4 [2022-11-20 10:32:52,130 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/data/fcc562f01/c8017dbbba744b9db47edcb12d21b4df [2022-11-20 10:32:52,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:52,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:52,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:52,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:52,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:52,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:52" (1/1) ... [2022-11-20 10:32:52,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abbd477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:52, skipping insertion in model container [2022-11-20 10:32:52,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:52" (1/1) ... [2022-11-20 10:32:52,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:52,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:53,305 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_60e586b6-b6f5-476b-b575-77f38cb66f4b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8842.ko-entry_point.cil.out.i[168234,168247] [2022-11-20 10:32:54,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:54,162 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:32:54,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:54,428 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8842.ko-entry_point.cil.out.i[168234,168247] [2022-11-20 10:32:54,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:54,664 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:32:54,958 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8842.ko-entry_point.cil.out.i[168234,168247] [2022-11-20 10:32:55,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:55,291 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:32:55,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55 WrapperNode [2022-11-20 10:32:55,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:55,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:55,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:32:55,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:32:55,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,555 INFO L138 Inliner]: procedures = 258, calls = 1442, calls flagged for inlining = 122, calls inlined = 104, statements flattened = 2627 [2022-11-20 10:32:55,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:55,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:32:55,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:32:55,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:32:55,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:32:55,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:32:55,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:32:55,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:32:55,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (1/1) ... [2022-11-20 10:32:55,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:55,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:55,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:32:55,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:32:55,926 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:32:55,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 10:32:55,927 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 10:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:32:55,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:32:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_write16 [2022-11-20 10:32:55,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_write16 [2022-11-20 10:32:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-20 10:32:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-20 10:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_select_bank [2022-11-20 10:32:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_select_bank [2022-11-20 10:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~C_ULONG~TO~C_INT [2022-11-20 10:32:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~C_ULONG~TO~C_INT [2022-11-20 10:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_tx_timeout [2022-11-20 10:32:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_tx_timeout [2022-11-20 10:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:32:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:32:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:32:55,931 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:32:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 10:32:55,932 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 10:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:32:55,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 10:32:55,933 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 10:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-20 10:32:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-20 10:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure dma_release_channel [2022-11-20 10:32:55,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_release_channel [2022-11-20 10:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:32:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-20 10:32:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-20 10:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_read16 [2022-11-20 10:32:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_read16 [2022-11-20 10:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~dma_cookie_t~0 [2022-11-20 10:32:55,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~dma_cookie_t~0 [2022-11-20 10:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_prep_slave_sg [2022-11-20 10:32:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_prep_slave_sg [2022-11-20 10:32:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-20 10:32:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-20 10:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 10:32:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 10:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:32:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:32:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure __ks8842_start_new_rx_dma [2022-11-20 10:32:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __ks8842_start_new_rx_dma [2022-11-20 10:32:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:32:55,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:32:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-20 10:32:55,940 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-20 10:32:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:32:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:32:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2022-11-20 10:32:55,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2022-11-20 10:32:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:32:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:32:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 10:32:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 10:32:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:32:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_tx_fifo_space [2022-11-20 10:32:55,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_tx_fifo_space [2022-11-20 10:32:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-20 10:32:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-20 10:32:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:32:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 10:32:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 10:32:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 10:32:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 10:32:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:32:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:32:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:32:55,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:32:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 10:32:55,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 10:32:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:32:55,943 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:32:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_reset_hw [2022-11-20 10:32:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_reset_hw [2022-11-20 10:32:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:32:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:32:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:32:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:32:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_request_channel [2022-11-20 10:32:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_request_channel [2022-11-20 10:32:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_update_link_status [2022-11-20 10:32:55,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_update_link_status [2022-11-20 10:32:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:32:55,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:32:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-20 10:32:55,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-20 10:32:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_write8 [2022-11-20 10:32:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_write8 [2022-11-20 10:32:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_set_mac [2022-11-20 10:32:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_set_mac [2022-11-20 10:32:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_stop_dma [2022-11-20 10:32:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_stop_dma [2022-11-20 10:32:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-20 10:32:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-20 10:32:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_write_mac_addr [2022-11-20 10:32:55,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_write_mac_addr [2022-11-20 10:32:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:32:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:32:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:32:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:32:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:32:55,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:32:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:32:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_dealloc_dma_bufs [2022-11-20 10:32:55,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_dealloc_dma_bufs [2022-11-20 10:32:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_enable_rx [2022-11-20 10:32:55,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_enable_rx [2022-11-20 10:32:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-20 10:32:55,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-20 10:32:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:32:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 10:32:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 10:32:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:32:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:32:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:32:55,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 10:32:55,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 10:32:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-20 10:32:55,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-20 10:32:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:32:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-20 10:32:55,950 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-20 10:32:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_enable_tx [2022-11-20 10:32:55,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_enable_tx [2022-11-20 10:32:55,950 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_cap_set [2022-11-20 10:32:55,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_cap_set [2022-11-20 10:32:55,951 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_resume_dma [2022-11-20 10:32:55,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_resume_dma [2022-11-20 10:32:55,951 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:32:55,951 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:32:55,951 INFO L130 BoogieDeclarations]: Found specification of procedure ks8842_enable_bits [2022-11-20 10:32:55,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8842_enable_bits [2022-11-20 10:32:55,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:32:55,952 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-20 10:32:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-20 10:32:55,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:32:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:32:56,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:32:56,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:32:57,410 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:33:13,441 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:33:13,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:33:13,467 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 10:33:13,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:13 BoogieIcfgContainer [2022-11-20 10:33:13,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:33:13,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:33:13,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:33:13,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:33:13,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:32:52" (1/3) ... [2022-11-20 10:33:13,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ecbd4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:13, skipping insertion in model container [2022-11-20 10:33:13,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:55" (2/3) ... [2022-11-20 10:33:13,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ecbd4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:13, skipping insertion in model container [2022-11-20 10:33:13,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:13" (3/3) ... [2022-11-20 10:33:13,485 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8842.ko-entry_point.cil.out.i [2022-11-20 10:33:13,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:33:13,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:33:13,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:33:13,619 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;@4f62e66b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:33:13,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:33:13,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 918 states, 634 states have (on average 1.2902208201892744) internal successors, (818), 654 states have internal predecessors, (818), 220 states have call successors, (220), 63 states have call predecessors, (220), 62 states have return successors, (213), 210 states have call predecessors, (213), 213 states have call successors, (213) [2022-11-20 10:33:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 10:33:13,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:13,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:13,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:13,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:13,658 INFO L85 PathProgramCache]: Analyzing trace with hash 708753747, now seen corresponding path program 1 times [2022-11-20 10:33:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:13,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902470428] [2022-11-20 10:33:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:13,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:13,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:13,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:13,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:33:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:14,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:14,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:33:14,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:14,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:14,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902470428] [2022-11-20 10:33:14,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902470428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:14,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:14,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060974446] [2022-11-20 10:33:14,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:14,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:14,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:14,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:14,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:14,631 INFO L87 Difference]: Start difference. First operand has 918 states, 634 states have (on average 1.2902208201892744) internal successors, (818), 654 states have internal predecessors, (818), 220 states have call successors, (220), 63 states have call predecessors, (220), 62 states have return successors, (213), 210 states have call predecessors, (213), 213 states have call successors, (213) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:33:15,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:15,170 INFO L93 Difference]: Finished difference Result 2716 states and 3765 transitions. [2022-11-20 10:33:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:15,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-11-20 10:33:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:15,209 INFO L225 Difference]: With dead ends: 2716 [2022-11-20 10:33:15,209 INFO L226 Difference]: Without dead ends: 1775 [2022-11-20 10:33:15,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:15,230 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 1204 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:15,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 2675 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:33:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2022-11-20 10:33:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1775. [2022-11-20 10:33:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1231 states have (on average 1.2623883021933386) internal successors, (1554), 1253 states have internal predecessors, (1554), 421 states have call successors, (421), 123 states have call predecessors, (421), 122 states have return successors, (420), 414 states have call predecessors, (420), 420 states have call successors, (420) [2022-11-20 10:33:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2395 transitions. [2022-11-20 10:33:15,534 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2395 transitions. Word has length 37 [2022-11-20 10:33:15,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:15,536 INFO L495 AbstractCegarLoop]: Abstraction has 1775 states and 2395 transitions. [2022-11-20 10:33:15,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:33:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2395 transitions. [2022-11-20 10:33:15,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 10:33:15,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:15,547 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:33:15,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:15,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:15,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:15,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1738882697, now seen corresponding path program 1 times [2022-11-20 10:33:15,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:15,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089855544] [2022-11-20 10:33:15,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:15,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:15,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:15,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:15,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:33:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:16,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:33:16,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 10:33:16,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:16,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:16,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089855544] [2022-11-20 10:33:16,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089855544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:16,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:16,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:33:16,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870598899] [2022-11-20 10:33:16,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:16,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:33:16,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:16,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:33:16,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:33:16,798 INFO L87 Difference]: Start difference. First operand 1775 states and 2395 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:33:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:17,443 INFO L93 Difference]: Finished difference Result 5302 states and 7185 transitions. [2022-11-20 10:33:17,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:33:17,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-11-20 10:33:17,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:17,467 INFO L225 Difference]: With dead ends: 5302 [2022-11-20 10:33:17,467 INFO L226 Difference]: Without dead ends: 3531 [2022-11-20 10:33:17,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:33:17,478 INFO L413 NwaCegarLoop]: 1511 mSDtfsCounter, 1187 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 5736 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:17,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 5736 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:33:17,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2022-11-20 10:33:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3523. [2022-11-20 10:33:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 2440 states have (on average 1.2622950819672132) internal successors, (3080), 2484 states have internal predecessors, (3080), 838 states have call successors, (838), 245 states have call predecessors, (838), 244 states have return successors, (861), 825 states have call predecessors, (861), 837 states have call successors, (861) [2022-11-20 10:33:17,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4779 transitions. [2022-11-20 10:33:17,731 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4779 transitions. Word has length 46 [2022-11-20 10:33:17,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:17,731 INFO L495 AbstractCegarLoop]: Abstraction has 3523 states and 4779 transitions. [2022-11-20 10:33:17,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:33:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4779 transitions. [2022-11-20 10:33:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 10:33:17,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:17,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:17,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:17,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:17,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:17,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:17,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1453688495, now seen corresponding path program 1 times [2022-11-20 10:33:17,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:17,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580716284] [2022-11-20 10:33:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:17,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:17,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:17,968 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:18,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:33:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:19,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:19,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 10:33:19,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:19,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:19,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580716284] [2022-11-20 10:33:19,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580716284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:19,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:19,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:19,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670009426] [2022-11-20 10:33:19,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:19,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:19,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:19,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:19,164 INFO L87 Difference]: Start difference. First operand 3523 states and 4779 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 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 10:33:19,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:19,749 INFO L93 Difference]: Finished difference Result 8198 states and 11055 transitions. [2022-11-20 10:33:19,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:19,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 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 135 [2022-11-20 10:33:19,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:19,777 INFO L225 Difference]: With dead ends: 8198 [2022-11-20 10:33:19,777 INFO L226 Difference]: Without dead ends: 4685 [2022-11-20 10:33:19,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:19,792 INFO L413 NwaCegarLoop]: 1291 mSDtfsCounter, 416 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:19,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 2427 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:33:19,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2022-11-20 10:33:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 4644. [2022-11-20 10:33:20,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4644 states, 3253 states have (on average 1.2652935751613894) internal successors, (4116), 3317 states have internal predecessors, (4116), 1051 states have call successors, (1051), 340 states have call predecessors, (1051), 339 states have return successors, (1074), 1018 states have call predecessors, (1074), 1050 states have call successors, (1074) [2022-11-20 10:33:20,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4644 states to 4644 states and 6241 transitions. [2022-11-20 10:33:20,143 INFO L78 Accepts]: Start accepts. Automaton has 4644 states and 6241 transitions. Word has length 135 [2022-11-20 10:33:20,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:20,144 INFO L495 AbstractCegarLoop]: Abstraction has 4644 states and 6241 transitions. [2022-11-20 10:33:20,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 2 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 10:33:20,144 INFO L276 IsEmpty]: Start isEmpty. Operand 4644 states and 6241 transitions. [2022-11-20 10:33:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-20 10:33:20,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:20,167 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 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] [2022-11-20 10:33:20,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:20,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:20,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:20,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:20,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1631476865, now seen corresponding path program 1 times [2022-11-20 10:33:20,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:20,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118445838] [2022-11-20 10:33:20,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:20,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:20,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:20,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:20,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:33:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:21,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1966 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:33:21,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-20 10:33:21,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:21,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:21,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118445838] [2022-11-20 10:33:21,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118445838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:21,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:21,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:33:21,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973010559] [2022-11-20 10:33:21,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:21,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:33:21,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:21,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:33:21,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:21,973 INFO L87 Difference]: Start difference. First operand 4644 states and 6241 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 10:33:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:22,588 INFO L93 Difference]: Finished difference Result 12630 states and 16972 transitions. [2022-11-20 10:33:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:33:22,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 257 [2022-11-20 10:33:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:22,645 INFO L225 Difference]: With dead ends: 12630 [2022-11-20 10:33:22,645 INFO L226 Difference]: Without dead ends: 8003 [2022-11-20 10:33:22,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:33:22,671 INFO L413 NwaCegarLoop]: 1937 mSDtfsCounter, 986 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:22,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 3127 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:33:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8003 states. [2022-11-20 10:33:23,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8003 to 7988. [2022-11-20 10:33:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7988 states, 5572 states have (on average 1.268664752333094) internal successors, (7069), 5680 states have internal predecessors, (7069), 1807 states have call successors, (1807), 609 states have call predecessors, (1807), 608 states have return successors, (1854), 1762 states have call predecessors, (1854), 1806 states have call successors, (1854) [2022-11-20 10:33:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7988 states to 7988 states and 10730 transitions. [2022-11-20 10:33:23,336 INFO L78 Accepts]: Start accepts. Automaton has 7988 states and 10730 transitions. Word has length 257 [2022-11-20 10:33:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:23,337 INFO L495 AbstractCegarLoop]: Abstraction has 7988 states and 10730 transitions. [2022-11-20 10:33:23,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 10:33:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 7988 states and 10730 transitions. [2022-11-20 10:33:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-20 10:33:23,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:23,369 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-20 10:33:23,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:23,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:23,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash -188887773, now seen corresponding path program 1 times [2022-11-20 10:33:23,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:23,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323214832] [2022-11-20 10:33:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:23,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:23,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:23,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:23,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:33:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:25,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1992 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:33:25,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-20 10:33:25,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:25,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:25,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323214832] [2022-11-20 10:33:25,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323214832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:25,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:25,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:33:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990125597] [2022-11-20 10:33:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:25,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:33:25,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:25,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:33:25,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:33:25,519 INFO L87 Difference]: Start difference. First operand 7988 states and 10730 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 10:33:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:26,889 INFO L93 Difference]: Finished difference Result 18642 states and 25645 transitions. [2022-11-20 10:33:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:33:26,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 268 [2022-11-20 10:33:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:26,973 INFO L225 Difference]: With dead ends: 18642 [2022-11-20 10:33:26,974 INFO L226 Difference]: Without dead ends: 10675 [2022-11-20 10:33:27,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:33:27,003 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 646 mSDsluCounter, 5867 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 7520 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:27,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 7520 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:33:27,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10675 states. [2022-11-20 10:33:27,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10675 to 8028. [2022-11-20 10:33:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8028 states, 5604 states have (on average 1.2671306209850106) internal successors, (7101), 5712 states have internal predecessors, (7101), 1807 states have call successors, (1807), 609 states have call predecessors, (1807), 616 states have return successors, (1894), 1770 states have call predecessors, (1894), 1806 states have call successors, (1894) [2022-11-20 10:33:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8028 states to 8028 states and 10802 transitions. [2022-11-20 10:33:27,798 INFO L78 Accepts]: Start accepts. Automaton has 8028 states and 10802 transitions. Word has length 268 [2022-11-20 10:33:27,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:27,801 INFO L495 AbstractCegarLoop]: Abstraction has 8028 states and 10802 transitions. [2022-11-20 10:33:27,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 10:33:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8028 states and 10802 transitions. [2022-11-20 10:33:27,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-20 10:33:27,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:27,834 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2022-11-20 10:33:27,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:28,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:28,060 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:28,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1647302559, now seen corresponding path program 1 times [2022-11-20 10:33:28,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:28,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736742746] [2022-11-20 10:33:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:28,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:28,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:28,065 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:28,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:33:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:29,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 2009 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:33:29,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 10:33:29,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:29,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:29,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736742746] [2022-11-20 10:33:29,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736742746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:29,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:29,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:33:29,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740430892] [2022-11-20 10:33:29,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:29,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:33:29,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:29,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:33:29,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:33:29,989 INFO L87 Difference]: Start difference. First operand 8028 states and 10802 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:33:32,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:32,037 INFO L93 Difference]: Finished difference Result 21393 states and 29930 transitions. [2022-11-20 10:33:32,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:33:32,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 274 [2022-11-20 10:33:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:32,100 INFO L225 Difference]: With dead ends: 21393 [2022-11-20 10:33:32,101 INFO L226 Difference]: Without dead ends: 13386 [2022-11-20 10:33:32,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:33:32,129 INFO L413 NwaCegarLoop]: 1747 mSDtfsCounter, 973 mSDsluCounter, 6448 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 8195 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:32,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 8195 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:33:32,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13386 states. [2022-11-20 10:33:32,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13386 to 8052. [2022-11-20 10:33:32,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8052 states, 5628 states have (on average 1.2659914712153517) internal successors, (7125), 5728 states have internal predecessors, (7125), 1807 states have call successors, (1807), 609 states have call predecessors, (1807), 616 states have return successors, (1894), 1778 states have call predecessors, (1894), 1806 states have call successors, (1894) [2022-11-20 10:33:33,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8052 states to 8052 states and 10826 transitions. [2022-11-20 10:33:33,020 INFO L78 Accepts]: Start accepts. Automaton has 8052 states and 10826 transitions. Word has length 274 [2022-11-20 10:33:33,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:33,021 INFO L495 AbstractCegarLoop]: Abstraction has 8052 states and 10826 transitions. [2022-11-20 10:33:33,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 10:33:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8052 states and 10826 transitions. [2022-11-20 10:33:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-20 10:33:33,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:33,046 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:33,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:33,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:33,267 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:33,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:33,268 INFO L85 PathProgramCache]: Analyzing trace with hash 865085023, now seen corresponding path program 2 times [2022-11-20 10:33:33,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:33,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152011942] [2022-11-20 10:33:33,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:33:33,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:33,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:33,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:33,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:33:34,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:33:34,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:33:35,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:33:35,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 24 proven. 28 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-20 10:33:36,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:33:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-20 10:33:37,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:37,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152011942] [2022-11-20 10:33:37,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152011942] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:33:37,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:33:37,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 10:33:37,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809847291] [2022-11-20 10:33:37,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:33:37,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:33:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:33:37,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:33:37,358 INFO L87 Difference]: Start difference. First operand 8052 states and 10826 transitions. Second operand has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 6 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (58), 5 states have call predecessors, (58), 5 states have call successors, (58) [2022-11-20 10:33:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:53,799 INFO L93 Difference]: Finished difference Result 48201 states and 64829 transitions. [2022-11-20 10:33:53,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:33:53,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 6 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (58), 5 states have call predecessors, (58), 5 states have call successors, (58) Word has length 280 [2022-11-20 10:33:53,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:54,052 INFO L225 Difference]: With dead ends: 48201 [2022-11-20 10:33:54,052 INFO L226 Difference]: Without dead ends: 48192 [2022-11-20 10:33:54,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:33:54,074 INFO L413 NwaCegarLoop]: 3238 mSDtfsCounter, 6772 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 2765 mSolverCounterSat, 1300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6772 SdHoareTripleChecker+Valid, 6969 SdHoareTripleChecker+Invalid, 4065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1300 IncrementalHoareTripleChecker+Valid, 2765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:54,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6772 Valid, 6969 Invalid, 4065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1300 Valid, 2765 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-11-20 10:33:54,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48192 states. [2022-11-20 10:33:58,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48192 to 48130. [2022-11-20 10:33:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48130 states, 33626 states have (on average 1.2666091714744543) internal successors, (42591), 34234 states have internal predecessors, (42591), 10817 states have call successors, (10817), 3639 states have call predecessors, (10817), 3686 states have return successors, (11344), 10640 states have call predecessors, (11344), 10816 states have call successors, (11344) [2022-11-20 10:33:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48130 states to 48130 states and 64752 transitions. [2022-11-20 10:33:59,138 INFO L78 Accepts]: Start accepts. Automaton has 48130 states and 64752 transitions. Word has length 280 [2022-11-20 10:33:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:59,139 INFO L495 AbstractCegarLoop]: Abstraction has 48130 states and 64752 transitions. [2022-11-20 10:33:59,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 6 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (58), 5 states have call predecessors, (58), 5 states have call successors, (58) [2022-11-20 10:33:59,140 INFO L276 IsEmpty]: Start isEmpty. Operand 48130 states and 64752 transitions. [2022-11-20 10:33:59,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-20 10:33:59,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:59,423 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:59,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:59,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:59,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:59,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash 983526497, now seen corresponding path program 1 times [2022-11-20 10:33:59,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:59,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005615650] [2022-11-20 10:33:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:59,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:33:59,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:59,644 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:33:59,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:34:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:01,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2024 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:34:01,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-20 10:34:01,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:01,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:01,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005615650] [2022-11-20 10:34:01,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005615650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:01,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:01,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:34:01,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445480954] [2022-11-20 10:34:01,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:01,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:34:01,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:01,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:34:01,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:34:01,631 INFO L87 Difference]: Start difference. First operand 48130 states and 64752 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-20 10:34:09,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:09,881 INFO L93 Difference]: Finished difference Result 114406 states and 157751 transitions. [2022-11-20 10:34:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:34:09,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 280 [2022-11-20 10:34:09,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:10,306 INFO L225 Difference]: With dead ends: 114406 [2022-11-20 10:34:10,306 INFO L226 Difference]: Without dead ends: 66297 [2022-11-20 10:34:10,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:34:10,495 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 765 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:10,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 2785 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 10:34:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66297 states. [2022-11-20 10:34:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66297 to 48514. [2022-11-20 10:34:16,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48514 states, 33914 states have (on average 1.2671757976057085) internal successors, (42975), 34522 states have internal predecessors, (42975), 10913 states have call successors, (10913), 3639 states have call predecessors, (10913), 3686 states have return successors, (11440), 10736 states have call predecessors, (11440), 10912 states have call successors, (11440) [2022-11-20 10:34:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48514 states to 48514 states and 65328 transitions. [2022-11-20 10:34:16,443 INFO L78 Accepts]: Start accepts. Automaton has 48514 states and 65328 transitions. Word has length 280 [2022-11-20 10:34:16,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:16,446 INFO L495 AbstractCegarLoop]: Abstraction has 48514 states and 65328 transitions. [2022-11-20 10:34:16,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-20 10:34:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 48514 states and 65328 transitions. [2022-11-20 10:34:16,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-20 10:34:16,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:16,608 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:16,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:34:16,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:34:16,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:16,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:16,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1211702369, now seen corresponding path program 1 times [2022-11-20 10:34:16,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:16,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139154377] [2022-11-20 10:34:16,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:16,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:34:16,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:16,837 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:34:16,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:34:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:18,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 2022 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:34:18,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-20 10:34:18,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:18,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:18,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139154377] [2022-11-20 10:34:18,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139154377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:18,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:18,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:34:18,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473835352] [2022-11-20 10:34:18,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:18,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:34:18,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:18,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:34:18,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:34:18,926 INFO L87 Difference]: Start difference. First operand 48514 states and 65328 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 10:34:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:24,331 INFO L93 Difference]: Finished difference Result 97055 states and 130728 transitions. [2022-11-20 10:34:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:34:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 280 [2022-11-20 10:34:24,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:24,693 INFO L225 Difference]: With dead ends: 97055 [2022-11-20 10:34:24,694 INFO L226 Difference]: Without dead ends: 48562 [2022-11-20 10:34:24,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:24,834 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 2 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:24,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3632 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 10:34:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48562 states. [2022-11-20 10:34:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48562 to 48562. [2022-11-20 10:34:28,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48562 states, 33962 states have (on average 1.263971497556092) internal successors, (42927), 34570 states have internal predecessors, (42927), 10913 states have call successors, (10913), 3639 states have call predecessors, (10913), 3686 states have return successors, (11440), 10736 states have call predecessors, (11440), 10912 states have call successors, (11440) [2022-11-20 10:34:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48562 states to 48562 states and 65280 transitions. [2022-11-20 10:34:28,810 INFO L78 Accepts]: Start accepts. Automaton has 48562 states and 65280 transitions. Word has length 280 [2022-11-20 10:34:28,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:28,811 INFO L495 AbstractCegarLoop]: Abstraction has 48562 states and 65280 transitions. [2022-11-20 10:34:28,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 10:34:28,811 INFO L276 IsEmpty]: Start isEmpty. Operand 48562 states and 65280 transitions. [2022-11-20 10:34:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-20 10:34:28,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:28,915 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:28,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:34:29,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:34:29,139 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2000219169, now seen corresponding path program 1 times [2022-11-20 10:34:29,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:34:29,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063651115] [2022-11-20 10:34:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:29,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:34:29,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:34:29,148 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:34:29,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60e586b6-b6f5-476b-b575-77f38cb66f4b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:34:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:30,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:34:30,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:30,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-20 10:34:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-20 10:34:30,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:30,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:34:30,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063651115] [2022-11-20 10:34:30,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063651115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:30,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:30,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:34:30,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037663230] [2022-11-20 10:34:30,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:30,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:34:30,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:34:30,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:34:30,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:34:30,959 INFO L87 Difference]: Start difference. First operand 48562 states and 65280 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 10:34:35,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []