./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--intel--ixgb--ixgb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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--intel--ixgb--ixgb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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_5f710e44-a3ab-441b-b527-a27488390233/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 c5e008b04b7be5a7eb3cfb5abbdeca875ac459e6636eb5b98613fa9fcb2277a8 --- 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 10:30:24,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:24,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:24,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:24,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:24,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:24,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:24,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:24,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:24,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:24,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:24,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:24,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:24,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:24,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:24,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:24,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:24,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:24,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:24,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:24,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:24,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:24,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:24,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:24,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:24,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:24,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:24,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:24,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:24,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:24,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:24,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:24,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:24,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:24,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:24,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:24,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:24,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:24,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:24,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:24,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:24,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:30:24,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:24,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:24,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:24,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:24,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:30:24,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:30:24,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:24,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:24,883 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:24,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:24,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:30:24,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:24,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:30:24,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:30:24,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:30:24,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:24,886 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:24,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:30:24,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:24,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:24,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:30:24,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:24,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:24,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:30:24,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:30:24,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:30:24,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:30:24,889 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:30:24,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:30:24,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:30:24,890 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_5f710e44-a3ab-441b-b527-a27488390233/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e008b04b7be5a7eb3cfb5abbdeca875ac459e6636eb5b98613fa9fcb2277a8 [2022-11-20 10:30:25,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:25,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:25,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:25,283 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:25,284 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:25,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-11-20 10:30:28,285 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:29,083 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:29,084 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-11-20 10:30:29,171 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data/6713cb54e/464da0d8eef84fff888c279e7dd21b87/FLAGf7c4555d7 [2022-11-20 10:30:29,191 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data/6713cb54e/464da0d8eef84fff888c279e7dd21b87 [2022-11-20 10:30:29,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:29,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:29,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:29,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:29,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:29,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:29" (1/1) ... [2022-11-20 10:30:29,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44aa5c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:29, skipping insertion in model container [2022-11-20 10:30:29,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:29" (1/1) ... [2022-11-20 10:30:29,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:29,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:30,268 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 10:30:30,286 INFO L158 Benchmark]: Toolchain (without parser) took 1088.74ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 69.5MB in the beginning and 117.8MB in the end (delta: -48.3MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2022-11-20 10:30:30,287 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:30:30,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1082.40ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 69.2MB in the beginning and 117.8MB in the end (delta: -48.5MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2022-11-20 10:30:30,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 134.2MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1082.40ms. Allocated memory was 134.2MB in the beginning and 201.3MB in the end (delta: 67.1MB). Free memory was 69.2MB in the beginning and 117.8MB in the end (delta: -48.5MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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--intel--ixgb--ixgb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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_5f710e44-a3ab-441b-b527-a27488390233/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 c5e008b04b7be5a7eb3cfb5abbdeca875ac459e6636eb5b98613fa9fcb2277a8 --- 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 10:30:32,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:32,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:32,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:32,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:32,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:32,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:32,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:32,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:32,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:32,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:32,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:32,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:32,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:32,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:32,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:32,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:32,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:32,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:32,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:32,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:32,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:32,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:32,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:32,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:32,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:32,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:32,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:32,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:32,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:32,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:32,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:32,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:32,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:32,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:32,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:32,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:32,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:32,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:32,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:32,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:32,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:30:32,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:32,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:32,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:32,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:32,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:30:32,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:30:32,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:32,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:32,704 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:32,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:32,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:32,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:30:32,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:30:32,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:30:32,706 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:30:32,706 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:30:32,707 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:30:32,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:32,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:32,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:30:32,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:32,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:32,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:30:32,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:32,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:32,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:30:32,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:30:32,710 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:30:32,710 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:30:32,710 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:30:32,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:30:32,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:30:32,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:30:32,711 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_5f710e44-a3ab-441b-b527-a27488390233/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e008b04b7be5a7eb3cfb5abbdeca875ac459e6636eb5b98613fa9fcb2277a8 [2022-11-20 10:30:33,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:33,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:33,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:33,150 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:33,150 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:33,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-11-20 10:30:36,407 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:37,269 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:37,270 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-11-20 10:30:37,333 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data/2099b898f/5af4548b9bc0440eb58a0140a4366d9d/FLAG2ad09963b [2022-11-20 10:30:37,355 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/data/2099b898f/5af4548b9bc0440eb58a0140a4366d9d [2022-11-20 10:30:37,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:37,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:37,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:37,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:37,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:37,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:37" (1/1) ... [2022-11-20 10:30:37,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db4fa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:37, skipping insertion in model container [2022-11-20 10:30:37,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:37" (1/1) ... [2022-11-20 10:30:37,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:37,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:39,025 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_5f710e44-a3ab-441b-b527-a27488390233/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[204422,204435] [2022-11-20 10:30:41,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:41,276 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:30:41,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:41,624 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_5f710e44-a3ab-441b-b527-a27488390233/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[204422,204435] [2022-11-20 10:30:42,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:42,052 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:30:42,260 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_5f710e44-a3ab-441b-b527-a27488390233/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i[204422,204435] [2022-11-20 10:30:42,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:42,901 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:30:42,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42 WrapperNode [2022-11-20 10:30:42,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:42,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:42,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:30:42,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:30:42,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,498 INFO L138 Inliner]: procedures = 437, calls = 5945, calls flagged for inlining = 205, calls inlined = 187, statements flattened = 11049 [2022-11-20 10:30:43,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:43,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:30:43,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:30:43,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:30:43,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,946 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:43,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:44,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:30:44,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:30:44,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:30:44,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:30:44,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (1/1) ... [2022-11-20 10:30:44,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:44,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:44,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:44,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:30:44,256 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 10:30:44,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 10:30:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 10:30:44,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 10:30:44,257 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-11-20 10:30:44,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-11-20 10:30:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:30:44,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:30:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-11-20 10:30:44,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-11-20 10:30:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_error_detected [2022-11-20 10:30:44,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_error_detected [2022-11-20 10:30:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 10:30:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 10:30:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:30:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:30:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 10:30:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 10:30:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:30:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:30:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-11-20 10:30:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-11-20 10:30:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-11-20 10:30:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-11-20 10:30:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-11-20 10:30:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-11-20 10:30:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-11-20 10:30:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-11-20 10:30:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 10:30:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 10:30:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_features [2022-11-20 10:30:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_features [2022-11-20 10:30:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-11-20 10:30:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-11-20 10:30:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-11-20 10:30:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-11-20 10:30:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 10:30:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 10:30:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:30:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:30:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 10:30:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 10:30:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:30:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:30:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-20 10:30:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:30:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 10:30:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 10:30:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:30:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:30:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:30:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-11-20 10:30:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-11-20 10:30:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 10:30:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 10:30:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-11-20 10:30:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-11-20 10:30:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:30:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:30:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-11-20 10:30:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-11-20 10:30:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-11-20 10:30:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-11-20 10:30:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:30:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:30:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-11-20 10:30:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-11-20 10:30:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-11-20 10:30:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-11-20 10:30:44,273 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2022-11-20 10:30:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2022-11-20 10:30:44,274 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-11-20 10:30:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-11-20 10:30:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 10:30:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 10:30:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-11-20 10:30:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-11-20 10:30:44,276 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:30:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:30:44,276 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-20 10:30:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-20 10:30:44,276 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-20 10:30:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-20 10:30:44,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:30:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:30:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-20 10:30:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-20 10:30:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-11-20 10:30:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-11-20 10:30:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-20 10:30:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-20 10:30:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 10:30:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 10:30:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-11-20 10:30:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-11-20 10:30:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-20 10:30:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-11-20 10:30:44,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-11-20 10:30:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-11-20 10:30:44,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-11-20 10:30:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:30:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-20 10:30:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-20 10:30:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:30:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 10:30:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 10:30:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:30:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:30:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:30:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:30:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:30:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-20 10:30:44,287 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-20 10:30:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:30:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-11-20 10:30:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-11-20 10:30:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-11-20 10:30:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-11-20 10:30:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 10:30:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 10:30:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-11-20 10:30:44,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-11-20 10:30:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 10:30:44,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 10:30:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-11-20 10:30:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-11-20 10:30:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-11-20 10:30:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-11-20 10:30:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 10:30:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 10:30:44,298 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:30:44,298 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:30:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-11-20 10:30:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-11-20 10:30:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-11-20 10:30:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-11-20 10:30:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-11-20 10:30:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-11-20 10:30:44,299 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 10:30:44,299 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 10:30:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:30:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:30:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:30:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:30:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:30:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-20 10:30:44,300 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-20 10:30:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:30:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:30:44,301 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:30:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:30:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:30:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:30:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:30:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:30:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:30:44,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:30:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 10:30:44,302 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 10:30:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 10:30:44,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 10:30:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-11-20 10:30:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-11-20 10:30:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2022-11-20 10:30:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2022-11-20 10:30:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:30:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:30:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-11-20 10:30:44,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-11-20 10:30:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-20 10:30:44,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-20 10:30:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:30:44,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:30:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:30:44,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:30:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 10:30:44,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 10:30:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-20 10:30:44,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-20 10:30:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 10:30:44,305 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 10:30:44,305 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-20 10:30:44,306 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-20 10:30:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 10:30:44,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 10:30:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:30:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-20 10:30:44,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-20 10:30:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 10:30:44,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 10:30:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:30:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-20 10:30:44,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-20 10:30:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_kill_vid [2022-11-20 10:30:44,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_kill_vid [2022-11-20 10:30:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:30:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:30:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:30:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-20 10:30:44,308 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-20 10:30:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:30:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:30:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_change_mtu [2022-11-20 10:30:44,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_change_mtu [2022-11-20 10:30:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 10:30:44,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 10:30:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:30:44,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:30:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 10:30:44,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 10:30:44,309 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-11-20 10:30:44,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-11-20 10:30:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-11-20 10:30:44,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-11-20 10:30:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_fix_features [2022-11-20 10:30:44,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_fix_features [2022-11-20 10:30:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 10:30:44,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 10:30:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:30:44,311 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:30:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_slot_reset [2022-11-20 10:30:44,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_slot_reset [2022-11-20 10:30:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-20 10:30:44,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-20 10:30:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-20 10:30:44,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-20 10:30:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:30:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:30:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-11-20 10:30:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-11-20 10:30:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-20 10:30:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-20 10:30:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:30:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:30:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_mac [2022-11-20 10:30:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_mac [2022-11-20 10:30:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-11-20 10:30:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-11-20 10:30:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:30:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:30:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:30:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:30:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:30:44,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:30:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-11-20 10:30:44,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-11-20 10:30:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 10:30:44,319 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 10:30:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-11-20 10:30:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-11-20 10:30:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 10:30:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 10:30:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-20 10:30:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-20 10:30:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-11-20 10:30:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-11-20 10:30:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-20 10:30:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-20 10:30:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 10:30:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 10:30:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-11-20 10:30:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-11-20 10:30:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-11-20 10:30:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-11-20 10:30:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-11-20 10:30:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-11-20 10:30:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 10:30:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 10:30:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-11-20 10:30:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-11-20 10:30:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-11-20 10:30:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-11-20 10:30:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 10:30:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 10:30:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_stats [2022-11-20 10:30:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_stats [2022-11-20 10:30:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-20 10:30:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-20 10:30:44,324 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-20 10:30:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-20 10:30:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 10:30:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 10:30:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 10:30:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-11-20 10:30:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-11-20 10:30:45,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:30:45,646 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:30:46,862 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:32:45,158 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:32:45,179 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:32:45,180 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:32:45,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:45 BoogieIcfgContainer [2022-11-20 10:32:45,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:32:45,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:32:45,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:32:45,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:32:45,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:30:37" (1/3) ... [2022-11-20 10:32:45,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2709db57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:45, skipping insertion in model container [2022-11-20 10:32:45,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:42" (2/3) ... [2022-11-20 10:32:45,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2709db57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:45, skipping insertion in model container [2022-11-20 10:32:45,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:45" (3/3) ... [2022-11-20 10:32:45,193 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--intel--ixgb--ixgb.ko-entry_point.cil.out.i [2022-11-20 10:32:45,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:32:45,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:32:45,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:32:45,320 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;@679b9676, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:32:45,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:32:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 3088 states, 2092 states have (on average 1.2997131931166348) internal successors, (2719), 2127 states have internal predecessors, (2719), 869 states have call successors, (869), 126 states have call predecessors, (869), 125 states have return successors, (861), 856 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-20 10:32:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 10:32:45,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:45,353 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:45,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:32:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:45,364 INFO L85 PathProgramCache]: Analyzing trace with hash -404507518, now seen corresponding path program 1 times [2022-11-20 10:32:45,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:45,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36552066] [2022-11-20 10:32:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:45,384 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 10:32:45,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:45,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:45,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:49,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 3983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:32:49,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-20 10:32:49,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:49,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:49,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36552066] [2022-11-20 10:32:49,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36552066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:49,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:49,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:32:49,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053870570] [2022-11-20 10:32:49,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:49,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:49,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:49,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:49,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:49,768 INFO L87 Difference]: Start difference. First operand has 3088 states, 2092 states have (on average 1.2997131931166348) internal successors, (2719), 2127 states have internal predecessors, (2719), 869 states have call successors, (869), 126 states have call predecessors, (869), 125 states have return successors, (861), 856 states have call predecessors, (861), 861 states have call successors, (861) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 10:32:50,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:50,494 INFO L93 Difference]: Finished difference Result 6174 states and 8980 transitions. [2022-11-20 10:32:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:32:50,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-11-20 10:32:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:50,541 INFO L225 Difference]: With dead ends: 6174 [2022-11-20 10:32:50,542 INFO L226 Difference]: Without dead ends: 3050 [2022-11-20 10:32:50,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:50,577 INFO L413 NwaCegarLoop]: 4433 mSDtfsCounter, 2 mSDsluCounter, 8854 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13287 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:50,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13287 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:32:50,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2022-11-20 10:32:50,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 3050. [2022-11-20 10:32:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3050 states, 2065 states have (on average 1.2857142857142858) internal successors, (2655), 2091 states have internal predecessors, (2655), 859 states have call successors, (859), 125 states have call predecessors, (859), 125 states have return successors, (863), 853 states have call predecessors, (863), 858 states have call successors, (863) [2022-11-20 10:32:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 4377 transitions. [2022-11-20 10:32:50,926 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 4377 transitions. Word has length 67 [2022-11-20 10:32:50,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:50,927 INFO L495 AbstractCegarLoop]: Abstraction has 3050 states and 4377 transitions. [2022-11-20 10:32:50,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 10:32:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 4377 transitions. [2022-11-20 10:32:50,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 10:32:50,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:50,942 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:51,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:51,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:51,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:32:51,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:51,157 INFO L85 PathProgramCache]: Analyzing trace with hash 131900765, now seen corresponding path program 1 times [2022-11-20 10:32:51,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:51,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757625040] [2022-11-20 10:32:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:51,162 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 10:32:51,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:51,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:51,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:55,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:32:55,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-20 10:32:55,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-11-20 10:32:55,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:55,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757625040] [2022-11-20 10:32:55,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757625040] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:55,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:32:55,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 10:32:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012271302] [2022-11-20 10:32:55,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:55,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:32:55,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:32:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:32:55,941 INFO L87 Difference]: Start difference. First operand 3050 states and 4377 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:32:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:57,350 INFO L93 Difference]: Finished difference Result 6100 states and 8772 transitions. [2022-11-20 10:32:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:32:57,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 72 [2022-11-20 10:32:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:57,374 INFO L225 Difference]: With dead ends: 6100 [2022-11-20 10:32:57,375 INFO L226 Difference]: Without dead ends: 3061 [2022-11-20 10:32:57,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:32:57,393 INFO L413 NwaCegarLoop]: 4360 mSDtfsCounter, 13 mSDsluCounter, 21755 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26115 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:57,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26115 Invalid, 155 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 10:32:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2022-11-20 10:32:57,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 3059. [2022-11-20 10:32:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 2073 states have (on average 1.2875060299083454) internal successors, (2669), 2099 states have internal predecessors, (2669), 859 states have call successors, (859), 126 states have call predecessors, (859), 126 states have return successors, (868), 853 states have call predecessors, (868), 858 states have call successors, (868) [2022-11-20 10:32:57,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 4396 transitions. [2022-11-20 10:32:57,568 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 4396 transitions. Word has length 72 [2022-11-20 10:32:57,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:57,569 INFO L495 AbstractCegarLoop]: Abstraction has 3059 states and 4396 transitions. [2022-11-20 10:32:57,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:32:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 4396 transitions. [2022-11-20 10:32:57,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 10:32:57,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:57,572 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:57,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:57,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:57,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:32:57,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:57,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1913091778, now seen corresponding path program 2 times [2022-11-20 10:32:57,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:57,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232885612] [2022-11-20 10:32:57,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:32:57,804 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 10:32:57,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:57,831 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:32:57,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:01,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:33:01,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:33:01,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 3873 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:33:01,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-11-20 10:33:02,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:02,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:02,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232885612] [2022-11-20 10:33:02,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232885612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:02,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:02,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:33:02,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260261833] [2022-11-20 10:33:02,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:02,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:33:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:02,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:33:02,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:33:02,097 INFO L87 Difference]: Start difference. First operand 3059 states and 4396 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 10:33:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:03,013 INFO L93 Difference]: Finished difference Result 6094 states and 8780 transitions. [2022-11-20 10:33:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:33:03,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2022-11-20 10:33:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:03,056 INFO L225 Difference]: With dead ends: 6094 [2022-11-20 10:33:03,057 INFO L226 Difference]: Without dead ends: 6086 [2022-11-20 10:33:03,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 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 10:33:03,064 INFO L413 NwaCegarLoop]: 5235 mSDtfsCounter, 4333 mSDsluCounter, 14827 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4333 SdHoareTripleChecker+Valid, 20062 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:03,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4333 Valid, 20062 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:33:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2022-11-20 10:33:03,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 6080. [2022-11-20 10:33:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6080 states, 4119 states have (on average 1.2879339645545036) internal successors, (5305), 4171 states have internal predecessors, (5305), 1709 states have call successors, (1709), 250 states have call predecessors, (1709), 251 states have return successors, (1746), 1698 states have call predecessors, (1746), 1708 states have call successors, (1746) [2022-11-20 10:33:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6080 states to 6080 states and 8760 transitions. [2022-11-20 10:33:03,489 INFO L78 Accepts]: Start accepts. Automaton has 6080 states and 8760 transitions. Word has length 79 [2022-11-20 10:33:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:03,490 INFO L495 AbstractCegarLoop]: Abstraction has 6080 states and 8760 transitions. [2022-11-20 10:33:03,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 10:33:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6080 states and 8760 transitions. [2022-11-20 10:33:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-20 10:33:03,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:03,512 INFO L195 NwaCegarLoop]: trace histogram [16, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:33:03,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:03,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:03,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:03,728 INFO L85 PathProgramCache]: Analyzing trace with hash -907403617, now seen corresponding path program 1 times [2022-11-20 10:33:03,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:03,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893877490] [2022-11-20 10:33:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:03,734 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 10:33:03,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:03,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:03,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:09,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 5478 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:33:09,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:09,937 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 236 proven. 3 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-11-20 10:33:09,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:33:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-11-20 10:33:11,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:11,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893877490] [2022-11-20 10:33:11,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893877490] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:33:11,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:33:11,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 10:33:11,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194727827] [2022-11-20 10:33:11,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:33:11,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:33:11,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:11,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:33:11,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:33:11,015 INFO L87 Difference]: Start difference. First operand 6080 states and 8760 transitions. Second operand has 10 states, 10 states have (on average 34.9) internal successors, (349), 10 states have internal predecessors, (349), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-20 10:33:13,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:13,408 INFO L93 Difference]: Finished difference Result 12187 states and 17596 transitions. [2022-11-20 10:33:13,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:33:13,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 34.9) internal successors, (349), 10 states have internal predecessors, (349), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 380 [2022-11-20 10:33:13,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:13,475 INFO L225 Difference]: With dead ends: 12187 [2022-11-20 10:33:13,475 INFO L226 Difference]: Without dead ends: 6120 [2022-11-20 10:33:13,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 766 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:33:13,516 INFO L413 NwaCegarLoop]: 4362 mSDtfsCounter, 29 mSDsluCounter, 30468 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 34830 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:13,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 34830 Invalid, 255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 10:33:13,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6120 states. [2022-11-20 10:33:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6120 to 6106. [2022-11-20 10:33:13,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 4144 states have (on average 1.291023166023166) internal successors, (5350), 4194 states have internal predecessors, (5350), 1709 states have call successors, (1709), 253 states have call predecessors, (1709), 252 states have return successors, (1746), 1698 states have call predecessors, (1746), 1708 states have call successors, (1746) [2022-11-20 10:33:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 8805 transitions. [2022-11-20 10:33:13,972 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 8805 transitions. Word has length 380 [2022-11-20 10:33:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:13,973 INFO L495 AbstractCegarLoop]: Abstraction has 6106 states and 8805 transitions. [2022-11-20 10:33:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.9) internal successors, (349), 10 states have internal predecessors, (349), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-20 10:33:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 8805 transitions. [2022-11-20 10:33:14,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2022-11-20 10:33:14,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:14,000 INFO L195 NwaCegarLoop]: trace histogram [24, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:33:14,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:14,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:14,223 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:14,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash -774111713, now seen corresponding path program 2 times [2022-11-20 10:33:14,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:14,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604053180] [2022-11-20 10:33:14,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:33:14,229 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 10:33:14,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:14,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:33:14,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:35:03,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:35:03,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:04,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 5566 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:35:04,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:04,501 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 384 proven. 21 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-11-20 10:35:04,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 60 proven. 159 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2022-11-20 10:35:06,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:06,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604053180] [2022-11-20 10:35:06,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604053180] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:06,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:35:06,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-20 10:35:06,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380364717] [2022-11-20 10:35:06,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:06,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:35:06,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:06,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:35:06,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:35:06,313 INFO L87 Difference]: Start difference. First operand 6106 states and 8805 transitions. Second operand has 18 states, 18 states have (on average 19.833333333333332) internal successors, (357), 18 states have internal predecessors, (357), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-20 10:35:10,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:10,725 INFO L93 Difference]: Finished difference Result 12249 states and 17712 transitions. [2022-11-20 10:35:10,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 10:35:10,726 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 19.833333333333332) internal successors, (357), 18 states have internal predecessors, (357), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 388 [2022-11-20 10:35:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:10,787 INFO L225 Difference]: With dead ends: 12249 [2022-11-20 10:35:10,788 INFO L226 Difference]: Without dead ends: 6146 [2022-11-20 10:35:10,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2022-11-20 10:35:10,828 INFO L413 NwaCegarLoop]: 4364 mSDtfsCounter, 95 mSDsluCounter, 30495 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 34859 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:10,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 34859 Invalid, 562 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 10:35:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6146 states. [2022-11-20 10:35:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6146 to 6116. [2022-11-20 10:35:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6116 states, 4152 states have (on average 1.2904624277456647) internal successors, (5358), 4204 states have internal predecessors, (5358), 1709 states have call successors, (1709), 253 states have call predecessors, (1709), 254 states have return successors, (1749), 1698 states have call predecessors, (1749), 1708 states have call successors, (1749) [2022-11-20 10:35:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 8816 transitions. [2022-11-20 10:35:11,276 INFO L78 Accepts]: Start accepts. Automaton has 6116 states and 8816 transitions. Word has length 388 [2022-11-20 10:35:11,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:11,276 INFO L495 AbstractCegarLoop]: Abstraction has 6116 states and 8816 transitions. [2022-11-20 10:35:11,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 19.833333333333332) internal successors, (357), 18 states have internal predecessors, (357), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-11-20 10:35:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6116 states and 8816 transitions. [2022-11-20 10:35:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-20 10:35:11,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:11,305 INFO L195 NwaCegarLoop]: trace histogram [28, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:35:11,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:35:11,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:35:11,519 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:11,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2114933281, now seen corresponding path program 3 times [2022-11-20 10:35:11,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:11,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717387035] [2022-11-20 10:35:11,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 10:35:11,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:11,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:11,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:35:11,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:33,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-20 10:37:33,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:34,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:37:34,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:34,178 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 10:37:34,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 12 [2022-11-20 10:37:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 267 proven. 10 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-11-20 10:37:34,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 171 proven. 17 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2022-11-20 10:37:39,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:39,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717387035] [2022-11-20 10:37:39,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717387035] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:39,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:37:39,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 10:37:39,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103168489] [2022-11-20 10:37:39,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:39,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:37:39,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:39,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:37:39,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:37:39,552 INFO L87 Difference]: Start difference. First operand 6116 states and 8816 transitions. Second operand has 15 states, 13 states have (on average 16.153846153846153) internal successors, (210), 15 states have internal predecessors, (210), 4 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (59), 2 states have call predecessors, (59), 4 states have call successors, (59) [2022-11-20 10:37:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:46,436 INFO L93 Difference]: Finished difference Result 12231 states and 17728 transitions. [2022-11-20 10:37:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 10:37:46,439 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 16.153846153846153) internal successors, (210), 15 states have internal predecessors, (210), 4 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (59), 2 states have call predecessors, (59), 4 states have call successors, (59) Word has length 392 [2022-11-20 10:37:46,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:46,497 INFO L225 Difference]: With dead ends: 12231 [2022-11-20 10:37:46,497 INFO L226 Difference]: Without dead ends: 6126 [2022-11-20 10:37:46,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 769 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-11-20 10:37:46,529 INFO L413 NwaCegarLoop]: 4360 mSDtfsCounter, 43 mSDsluCounter, 39141 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 43501 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:46,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 43501 Invalid, 467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 425 Invalid, 0 Unknown, 11 Unchecked, 3.8s Time] [2022-11-20 10:37:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6126 states. [2022-11-20 10:37:46,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6126 to 6106. [2022-11-20 10:37:46,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 4144 states have (on average 1.2876447876447876) internal successors, (5336), 4194 states have internal predecessors, (5336), 1709 states have call successors, (1709), 253 states have call predecessors, (1709), 252 states have return successors, (1744), 1698 states have call predecessors, (1744), 1708 states have call successors, (1744) [2022-11-20 10:37:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 8789 transitions. [2022-11-20 10:37:47,030 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 8789 transitions. Word has length 392 [2022-11-20 10:37:47,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:47,032 INFO L495 AbstractCegarLoop]: Abstraction has 6106 states and 8789 transitions. [2022-11-20 10:37:47,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 16.153846153846153) internal successors, (210), 15 states have internal predecessors, (210), 4 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (59), 2 states have call predecessors, (59), 4 states have call successors, (59) [2022-11-20 10:37:47,033 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 8789 transitions. [2022-11-20 10:37:47,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2022-11-20 10:37:47,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:47,058 INFO L195 NwaCegarLoop]: trace histogram [24, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:37:47,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:47,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:47,275 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:47,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:47,275 INFO L85 PathProgramCache]: Analyzing trace with hash 534418463, now seen corresponding path program 4 times [2022-11-20 10:37:47,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:47,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543341959] [2022-11-20 10:37:47,279 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-20 10:37:47,280 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 10:37:47,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:47,281 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:47,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:55,201 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-20 10:37:55,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:55,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 5566 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:37:55,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2022-11-20 10:37:55,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:55,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:55,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543341959] [2022-11-20 10:37:55,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543341959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:55,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:55,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:37:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044855871] [2022-11-20 10:37:55,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:55,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:37:55,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:55,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:37:55,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:37:55,517 INFO L87 Difference]: Start difference. First operand 6106 states and 8789 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 10:37:56,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:56,389 INFO L93 Difference]: Finished difference Result 18026 states and 25925 transitions. [2022-11-20 10:37:56,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:37:56,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 388 [2022-11-20 10:37:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:56,479 INFO L225 Difference]: With dead ends: 18026 [2022-11-20 10:37:56,479 INFO L226 Difference]: Without dead ends: 11956 [2022-11-20 10:37:56,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 386 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 10:37:56,518 INFO L413 NwaCegarLoop]: 5186 mSDtfsCounter, 4194 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4194 SdHoareTripleChecker+Valid, 9491 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:56,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4194 Valid, 9491 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:37:56,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11956 states. [2022-11-20 10:37:57,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11956 to 11942. [2022-11-20 10:37:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11942 states, 8100 states have (on average 1.2858024691358025) internal successors, (10415), 8200 states have internal predecessors, (10415), 3345 states have call successors, (3345), 497 states have call predecessors, (3345), 496 states have return successors, (3407), 3322 states have call predecessors, (3407), 3344 states have call successors, (3407) [2022-11-20 10:37:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11942 states to 11942 states and 17167 transitions. [2022-11-20 10:37:57,658 INFO L78 Accepts]: Start accepts. Automaton has 11942 states and 17167 transitions. Word has length 388 [2022-11-20 10:37:57,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:57,659 INFO L495 AbstractCegarLoop]: Abstraction has 11942 states and 17167 transitions. [2022-11-20 10:37:57,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 10:37:57,659 INFO L276 IsEmpty]: Start isEmpty. Operand 11942 states and 17167 transitions. [2022-11-20 10:37:57,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-11-20 10:37:57,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:57,700 INFO L195 NwaCegarLoop]: trace histogram [28, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:37:57,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:57,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:57,923 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:57,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash -217416850, now seen corresponding path program 1 times [2022-11-20 10:37:57,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:57,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891987067] [2022-11-20 10:37:57,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:57,931 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 10:37:57,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:57,932 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:37:57,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:07,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 6198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:38:07,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 437 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2022-11-20 10:38:07,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:07,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:07,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891987067] [2022-11-20 10:38:07,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891987067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:07,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:07,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:38:07,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815214293] [2022-11-20 10:38:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:07,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:07,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:07,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:07,336 INFO L87 Difference]: Start difference. First operand 11942 states and 17167 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-20 10:38:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:08,859 INFO L93 Difference]: Finished difference Result 33950 states and 48629 transitions. [2022-11-20 10:38:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 464 [2022-11-20 10:38:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:09,011 INFO L225 Difference]: With dead ends: 33950 [2022-11-20 10:38:09,011 INFO L226 Difference]: Without dead ends: 22044 [2022-11-20 10:38:09,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 462 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 10:38:09,079 INFO L413 NwaCegarLoop]: 5212 mSDtfsCounter, 3670 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 9493 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:09,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 9493 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 10:38:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22044 states. [2022-11-20 10:38:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22044 to 22026. [2022-11-20 10:38:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22026 states, 14976 states have (on average 1.2833199786324787) internal successors, (19219), 15157 states have internal predecessors, (19219), 6079 states have call successors, (6079), 968 states have call predecessors, (6079), 970 states have return successors, (6189), 6040 states have call predecessors, (6189), 6078 states have call successors, (6189) [2022-11-20 10:38:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22026 states to 22026 states and 31487 transitions. [2022-11-20 10:38:10,888 INFO L78 Accepts]: Start accepts. Automaton has 22026 states and 31487 transitions. Word has length 464 [2022-11-20 10:38:10,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:10,889 INFO L495 AbstractCegarLoop]: Abstraction has 22026 states and 31487 transitions. [2022-11-20 10:38:10,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-20 10:38:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand 22026 states and 31487 transitions. [2022-11-20 10:38:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-11-20 10:38:10,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:10,955 INFO L195 NwaCegarLoop]: trace histogram [24, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:38:11,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:11,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:11,179 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:38:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1671981032, now seen corresponding path program 1 times [2022-11-20 10:38:11,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:11,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918790629] [2022-11-20 10:38:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:11,185 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 10:38:11,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:11,187 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:11,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:18,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 5639 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:38:18,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-11-20 10:38:18,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:18,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:18,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918790629] [2022-11-20 10:38:18,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918790629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:18,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:18,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:38:18,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615713624] [2022-11-20 10:38:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:18,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:18,876 INFO L87 Difference]: Start difference. First operand 22026 states and 31487 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-20 10:38:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:20,872 INFO L93 Difference]: Finished difference Result 58866 states and 83906 transitions. [2022-11-20 10:38:20,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:20,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 397 [2022-11-20 10:38:20,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:21,086 INFO L225 Difference]: With dead ends: 58866 [2022-11-20 10:38:21,086 INFO L226 Difference]: Without dead ends: 36880 [2022-11-20 10:38:21,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 395 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 10:38:21,188 INFO L413 NwaCegarLoop]: 5860 mSDtfsCounter, 3518 mSDsluCounter, 4210 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 10070 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:21,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3518 Valid, 10070 Invalid, 121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 10:38:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36880 states. [2022-11-20 10:38:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36880 to 36774. [2022-11-20 10:38:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36774 states, 24869 states have (on average 1.2758856407575696) internal successors, (31730), 25181 states have internal predecessors, (31730), 10229 states have call successors, (10229), 1670 states have call predecessors, (10229), 1675 states have return successors, (10385), 10138 states have call predecessors, (10385), 10228 states have call successors, (10385) [2022-11-20 10:38:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36774 states to 36774 states and 52344 transitions. [2022-11-20 10:38:24,566 INFO L78 Accepts]: Start accepts. Automaton has 36774 states and 52344 transitions. Word has length 397 [2022-11-20 10:38:24,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:24,567 INFO L495 AbstractCegarLoop]: Abstraction has 36774 states and 52344 transitions. [2022-11-20 10:38:24,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-20 10:38:24,568 INFO L276 IsEmpty]: Start isEmpty. Operand 36774 states and 52344 transitions. [2022-11-20 10:38:24,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-11-20 10:38:24,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:24,618 INFO L195 NwaCegarLoop]: trace histogram [24, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:38:24,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:24,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:24,833 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:38:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:24,834 INFO L85 PathProgramCache]: Analyzing trace with hash -338820952, now seen corresponding path program 1 times [2022-11-20 10:38:24,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:24,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256474117] [2022-11-20 10:38:24,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:24,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:24,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:24,842 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:24,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:32,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 5737 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:38:32,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2022-11-20 10:38:33,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:33,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:33,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256474117] [2022-11-20 10:38:33,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256474117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:33,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:33,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:38:33,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736855775] [2022-11-20 10:38:33,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:33,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:38:33,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:33,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:38:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:38:33,134 INFO L87 Difference]: Start difference. First operand 36774 states and 52344 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-20 10:38:35,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:35,875 INFO L93 Difference]: Finished difference Result 92326 states and 131519 transitions. [2022-11-20 10:38:35,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:38:35,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 446 [2022-11-20 10:38:35,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:36,314 INFO L225 Difference]: With dead ends: 92326 [2022-11-20 10:38:36,314 INFO L226 Difference]: Without dead ends: 55598 [2022-11-20 10:38:36,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 444 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 10:38:36,443 INFO L413 NwaCegarLoop]: 8435 mSDtfsCounter, 4264 mSDsluCounter, 4323 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4264 SdHoareTripleChecker+Valid, 12758 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:36,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4264 Valid, 12758 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:38:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55598 states. [2022-11-20 10:38:40,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55598 to 55582. [2022-11-20 10:38:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55582 states, 37593 states have (on average 1.2756630223711862) internal successors, (47956), 38069 states have internal predecessors, (47956), 15463 states have call successors, (15463), 2516 states have call predecessors, (15463), 2525 states have return successors, (15698), 15324 states have call predecessors, (15698), 15462 states have call successors, (15698) [2022-11-20 10:38:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55582 states to 55582 states and 79117 transitions. [2022-11-20 10:38:40,765 INFO L78 Accepts]: Start accepts. Automaton has 55582 states and 79117 transitions. Word has length 446 [2022-11-20 10:38:40,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:40,765 INFO L495 AbstractCegarLoop]: Abstraction has 55582 states and 79117 transitions. [2022-11-20 10:38:40,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-20 10:38:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 55582 states and 79117 transitions. [2022-11-20 10:38:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-11-20 10:38:40,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:40,812 INFO L195 NwaCegarLoop]: trace histogram [24, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:38:40,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:41,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:41,027 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:38:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:41,027 INFO L85 PathProgramCache]: Analyzing trace with hash 555051944, now seen corresponding path program 1 times [2022-11-20 10:38:41,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:41,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093401055] [2022-11-20 10:38:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:41,034 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 10:38:41,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:41,035 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/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 10:38:41,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 10:38:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:48,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 5737 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:38:48,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:50,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 9 proven. 176 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2022-11-20 10:38:50,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:38:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2022-11-20 10:38:51,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:51,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093401055] [2022-11-20 10:38:51,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093401055] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:38:51,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:38:51,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-11-20 10:38:51,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404731433] [2022-11-20 10:38:51,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:51,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:38:51,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:51,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:38:51,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:38:51,723 INFO L87 Difference]: Start difference. First operand 55582 states and 79117 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 5 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (61), 5 states have call predecessors, (61), 4 states have call successors, (61) [2022-11-20 10:39:03,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:39:22,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:39:25,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:39:33,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:39:35,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:39:43,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:40:42,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:40:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:49,547 INFO L93 Difference]: Finished difference Result 167896 states and 240296 transitions. [2022-11-20 10:40:49,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:40:49,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 5 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (61), 5 states have call predecessors, (61), 4 states have call successors, (61) Word has length 446 [2022-11-20 10:40:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:50,343 INFO L225 Difference]: With dead ends: 167896 [2022-11-20 10:40:50,343 INFO L226 Difference]: Without dead ends: 112360 [2022-11-20 10:40:50,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 886 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 10:40:50,545 INFO L413 NwaCegarLoop]: 5494 mSDtfsCounter, 8320 mSDsluCounter, 4004 mSDsCounter, 0 mSdLazyCounter, 8330 mSolverCounterSat, 1779 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8880 SdHoareTripleChecker+Valid, 9498 SdHoareTripleChecker+Invalid, 10114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1779 IncrementalHoareTripleChecker+Valid, 8330 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:50,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8880 Valid, 9498 Invalid, 10114 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1779 Valid, 8330 Invalid, 5 Unknown, 0 Unchecked, 111.4s Time] [2022-11-20 10:40:50,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112360 states. [2022-11-20 10:40:58,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112360 to 111102. [2022-11-20 10:40:58,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111102 states, 74871 states have (on average 1.2734837253409197) internal successors, (95347), 76009 states have internal predecessors, (95347), 31085 states have call successors, (31085), 5020 states have call predecessors, (31085), 5145 states have return successors, (32421), 30708 states have call predecessors, (32421), 31084 states have call successors, (32421) [2022-11-20 10:41:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111102 states to 111102 states and 158853 transitions. [2022-11-20 10:41:00,096 INFO L78 Accepts]: Start accepts. Automaton has 111102 states and 158853 transitions. Word has length 446 [2022-11-20 10:41:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:00,097 INFO L495 AbstractCegarLoop]: Abstraction has 111102 states and 158853 transitions. [2022-11-20 10:41:00,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 5 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (61), 5 states have call predecessors, (61), 4 states have call successors, (61) [2022-11-20 10:41:00,097 INFO L276 IsEmpty]: Start isEmpty. Operand 111102 states and 158853 transitions. [2022-11-20 10:41:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-11-20 10:41:00,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:00,220 INFO L195 NwaCegarLoop]: trace histogram [24, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:00,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-20 10:41:00,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:00,422 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:00,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:00,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1489331710, now seen corresponding path program 1 times [2022-11-20 10:41:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:41:00,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843344630] [2022-11-20 10:41:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:00,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:00,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:41:00,431 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:41:00,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f710e44-a3ab-441b-b527-a27488390233/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 10:41:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:09,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 5775 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:41:09,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 13 proven. 176 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-11-20 10:41:12,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:41:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2022-11-20 10:41:16,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:41:16,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843344630] [2022-11-20 10:41:16,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843344630] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:41:16,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:41:16,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2022-11-20 10:41:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941136148] [2022-11-20 10:41:16,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:16,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:41:16,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:41:16,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:41:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:41:16,756 INFO L87 Difference]: Start difference. First operand 111102 states and 158853 transitions. Second operand has 8 states, 8 states have (on average 27.5) internal successors, (220), 7 states have internal predecessors, (220), 5 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (62), 6 states have call predecessors, (62), 4 states have call successors, (62) [2022-11-20 10:41:33,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:41:40,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:41:44,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:41:52,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:41:54,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:41:58,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:11,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:14,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:18,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:22,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:24,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:28,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:30,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:36,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:44,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:47,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:49,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:51,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:55,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:43:03,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:43:05,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:43:07,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:43:11,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:44:09,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:44:13,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []