./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/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_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/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_21bdfaf8-ebac-49a9-a942-1082b3826b08/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 34bfb407ab3285beb6e4618a31251a3cfac86b629af8c3915889881b8af28c9e --- 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 09:30:42,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:30:42,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:30:42,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:30:42,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:30:42,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:30:42,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:30:42,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:30:42,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:30:42,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:30:42,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:30:42,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:30:42,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:30:42,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:30:42,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:30:42,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:30:42,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:30:42,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:30:42,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:30:42,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:30:42,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:30:42,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:30:42,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:30:42,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:30:42,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:30:42,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:30:42,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:30:42,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:30:42,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:30:42,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:30:42,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:30:42,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:30:42,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:30:42,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:30:42,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:30:42,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:30:42,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:30:42,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:30:42,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:30:42,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:30:42,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:30:42,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:30:42,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:30:42,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:30:42,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:30:42,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:30:42,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:30:42,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:30:42,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:30:42,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:30:42,888 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:30:42,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:30:42,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:30:42,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:30:42,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:30:42,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:30:42,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:30:42,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:30:42,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:30:42,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:30:42,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:30:42,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:30:42,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:30:42,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:42,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:30:42,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:30:42,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:30:42,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:30:42,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:30:42,893 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:30:42,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:30:42,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:30:42,893 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_21bdfaf8-ebac-49a9-a942-1082b3826b08/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34bfb407ab3285beb6e4618a31251a3cfac86b629af8c3915889881b8af28c9e [2022-11-20 09:30:43,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:30:43,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:30:43,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:30:43,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:30:43,241 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:30:43,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i [2022-11-20 09:30:46,380 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:30:47,029 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:30:47,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i [2022-11-20 09:30:47,076 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data/79b69559a/0ec0d533a980474e90dd35b2195a2bab/FLAG8337b7e02 [2022-11-20 09:30:47,096 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data/79b69559a/0ec0d533a980474e90dd35b2195a2bab [2022-11-20 09:30:47,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:30:47,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:30:47,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:47,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:30:47,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:30:47,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:47" (1/1) ... [2022-11-20 09:30:47,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a48102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:47, skipping insertion in model container [2022-11-20 09:30:47,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:47" (1/1) ... [2022-11-20 09:30:47,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:30:47,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:49,279 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) 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: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.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:728) 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:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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 09:30:49,289 INFO L158 Benchmark]: Toolchain (without parser) took 2184.73ms. Allocated memory is still 176.2MB. Free memory was 132.0MB in the beginning and 101.9MB in the end (delta: 30.1MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2022-11-20 09:30:49,290 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 90.3MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:30:49,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2180.88ms. Allocated memory is still 176.2MB. Free memory was 132.0MB in the beginning and 101.9MB in the end (delta: 30.1MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2022-11-20 09:30:49,293 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory was 90.3MB in the beginning and 90.3MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2180.88ms. Allocated memory is still 176.2MB. Free memory was 132.0MB in the beginning and 101.9MB in the end (delta: 30.1MB). Peak memory consumption was 87.7MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/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_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/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_21bdfaf8-ebac-49a9-a942-1082b3826b08/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 34bfb407ab3285beb6e4618a31251a3cfac86b629af8c3915889881b8af28c9e --- 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 09:30:51,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:30:51,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:30:51,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:30:51,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:30:51,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:30:51,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:30:51,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:30:51,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:30:51,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:30:51,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:30:51,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:30:51,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:30:51,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:30:51,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:30:51,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:30:51,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:30:51,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:30:51,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:30:51,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:30:51,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:30:51,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:30:51,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:30:51,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:30:51,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:30:51,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:30:51,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:30:51,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:30:51,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:30:51,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:30:51,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:30:51,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:30:51,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:30:51,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:30:51,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:30:51,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:30:51,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:30:51,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:30:51,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:30:51,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:30:51,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:30:51,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:30:51,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:30:51,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:30:51,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:30:51,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:30:51,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:30:51,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:30:51,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:30:51,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:30:51,734 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:30:51,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:30:51,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:30:51,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:30:51,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:30:51,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:30:51,736 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:30:51,736 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:30:51,736 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:30:51,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:30:51,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:30:51,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:30:51,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:30:51,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:30:51,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:30:51,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:51,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:30:51,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:30:51,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:30:51,738 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:30:51,738 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:30:51,739 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:30:51,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:30:51,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:30:51,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:30:51,740 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_21bdfaf8-ebac-49a9-a942-1082b3826b08/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34bfb407ab3285beb6e4618a31251a3cfac86b629af8c3915889881b8af28c9e [2022-11-20 09:30:52,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:30:52,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:30:52,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:30:52,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:30:52,240 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:30:52,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i [2022-11-20 09:30:55,451 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:30:56,162 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:30:56,163 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i [2022-11-20 09:30:56,204 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data/90482be07/48e4bba37ade400e8ca15dd1c640ef8b/FLAG543d5558f [2022-11-20 09:30:56,242 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/data/90482be07/48e4bba37ade400e8ca15dd1c640ef8b [2022-11-20 09:30:56,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:30:56,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:30:56,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:56,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:30:56,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:30:56,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:56" (1/1) ... [2022-11-20 09:30:56,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bb443bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:56, skipping insertion in model container [2022-11-20 09:30:56,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:56" (1/1) ... [2022-11-20 09:30:56,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:30:56,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:59,049 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_21bdfaf8-ebac-49a9-a942-1082b3826b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i[342209,342222] [2022-11-20 09:30:59,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:59,200 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:30:59,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:59,772 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_21bdfaf8-ebac-49a9-a942-1082b3826b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i[342209,342222] [2022-11-20 09:30:59,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:59,863 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:31:00,194 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_21bdfaf8-ebac-49a9-a942-1082b3826b08/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i[342209,342222] [2022-11-20 09:31:00,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:00,354 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:31:00,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00 WrapperNode [2022-11-20 09:31:00,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:00,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:00,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:31:00,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:31:00,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:00,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:00,777 INFO L138 Inliner]: procedures = 353, calls = 3842, calls flagged for inlining = 117, calls inlined = 109, statements flattened = 6656 [2022-11-20 09:31:00,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:00,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:31:00,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:31:00,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:31:00,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:00,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:00,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:00,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:01,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:01,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:01,124 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:01,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:01,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:31:01,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:31:01,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:31:01,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:31:01,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (1/1) ... [2022-11-20 09:31:01,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:31:01,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:01,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:01,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:31:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_msg_structures_uv [2022-11-20 09:31:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_msg_structures_uv [2022-11-20 09:31:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 09:31:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 09:31:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_init_uv [2022-11-20 09:31:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_init_uv [2022-11-20 09:31:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:31:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-11-20 09:31:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:31:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_allow_hb_uv [2022-11-20 09:31:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_allow_hb_uv [2022-11-20 09:31:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions_uv [2022-11-20 09:31:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions_uv [2022-11-20 09:31:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_waitmsgs [2022-11-20 09:31:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_waitmsgs [2022-11-20 09:31:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:31:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_opencomplete_uv [2022-11-20 09:31:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_opencomplete_uv [2022-11-20 09:31:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:31:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:31:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-20 09:31:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-20 09:31:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:31:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:31:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:31:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:31:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:31:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_msg_structures_uv [2022-11-20 09:31:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_msg_structures_uv [2022-11-20 09:31:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_rsvd_page [2022-11-20 09:31:01,274 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_rsvd_page [2022-11-20 09:31:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_disengaged [2022-11-20 09:31:01,274 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_disengaged [2022-11-20 09:31:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_wakeup_channel_mgr [2022-11-20 09:31:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_wakeup_channel_mgr [2022-11-20 09:31:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-20 09:31:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-20 09:31:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 09:31:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 09:31:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 09:31:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 09:31:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2022-11-20 09:31:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2022-11-20 09:31:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:31:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:31:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kmalloc_cacheline_aligned [2022-11-20 09:31:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kmalloc_cacheline_aligned [2022-11-20 09:31:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_partitions_uv [2022-11-20 09:31:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_partitions_uv [2022-11-20 09:31:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_offline_heartbeat_uv [2022-11-20 09:31:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_offline_heartbeat_uv [2022-11-20 09:31:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_release_gru_mq_irq_uv [2022-11-20 09:31:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_release_gru_mq_irq_uv [2022-11-20 09:31:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 09:31:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_sender_uv [2022-11-20 09:31:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_sender_uv [2022-11-20 09:31:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_die_deactivate [2022-11-20 09:31:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_die_deactivate [2022-11-20 09:31:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_connect [2022-11-20 09:31:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_connect [2022-11-20 09:31:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 09:31:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 09:31:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-20 09:31:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-20 09:31:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_die_notifier [2022-11-20 09:31:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_die_notifier [2022-11-20 09:31:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_check_remote_hb [2022-11-20 09:31:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_check_remote_hb [2022-11-20 09:31:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 09:31:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 09:31:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 09:31:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 09:31:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_fifo_uv [2022-11-20 09:31:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_fifo_uv [2022-11-20 09:31:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_ref [2022-11-20 09:31:01,286 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_ref [2022-11-20 09:31:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_received_payload_uv [2022-11-20 09:31:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_received_payload_uv [2022-11-20 09:31:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 09:31:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 09:31:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:31:01,288 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:31:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_kthread_start [2022-11-20 09:31:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_kthread_start [2022-11-20 09:31:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 09:31:01,289 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 09:31:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_ref [2022-11-20 09:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_ref [2022-11-20 09:31:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_kthreads [2022-11-20 09:31:01,290 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_kthreads [2022-11-20 09:31:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2022-11-20 09:31:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2022-11-20 09:31:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_local_activate_IRQ_uv [2022-11-20 09:31:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_local_activate_IRQ_uv [2022-11-20 09:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_SHORT~TO~C_INT [2022-11-20 09:31:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_SHORT~TO~C_INT [2022-11-20 09:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_exit_uv [2022-11-20 09:31:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_exit_uv [2022-11-20 09:31:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 09:31:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 09:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_put_fifo_entry_uv [2022-11-20 09:31:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_put_fifo_entry_uv [2022-11-20 09:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure uv_blade_to_pnode [2022-11-20 09:31:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_blade_to_pnode [2022-11-20 09:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_activate_IRQ_rcvd_uv [2022-11-20 09:31:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_activate_IRQ_rcvd_uv [2022-11-20 09:31:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_uv [2022-11-20 09:31:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_uv [2022-11-20 09:31:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_payload_uv [2022-11-20 09:31:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_payload_uv [2022-11-20 09:31:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_free_msg_slot_uv [2022-11-20 09:31:01,295 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_free_msg_slot_uv [2022-11-20 09:31:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:31:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 09:31:01,299 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 09:31:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_engaged_uv [2022-11-20 09:31:01,299 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_engaged_uv [2022-11-20 09:31:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_openclose_chctl_flags [2022-11-20 09:31:01,302 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_openclose_chctl_flags [2022-11-20 09:31:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:31:01,302 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_msg_chctl_flags_uv [2022-11-20 09:31:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_msg_chctl_flags_uv [2022-11-20 09:31:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 09:31:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 09:31:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_ULONG [2022-11-20 09:31:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_ULONG [2022-11-20 09:31:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-20 09:31:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_msgqueue_deref [2022-11-20 09:31:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_msgqueue_deref [2022-11-20 09:31:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 09:31:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 09:31:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:31:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:31:01,311 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closereply_uv [2022-11-20 09:31:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closereply_uv [2022-11-20 09:31:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 09:31:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 09:31:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_connect_channel [2022-11-20 09:31:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_connect_channel [2022-11-20 09:31:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cache_remote_gru_mq_desc_uv [2022-11-20 09:31:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cache_remote_gru_mq_desc_uv [2022-11-20 09:31:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_ch_structures_uv [2022-11-20 09:31:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_ch_structures_uv [2022-11-20 09:31:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:31:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:31:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:31:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:31:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:31:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_activation_uv [2022-11-20 09:31:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_activation_uv [2022-11-20 09:31:01,313 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activating [2022-11-20 09:31:01,313 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activating [2022-11-20 09:31:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:31:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_callout [2022-11-20 09:31:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_callout [2022-11-20 09:31:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_deactivate_partition [2022-11-20 09:31:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_deactivate_partition [2022-11-20 09:31:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 09:31:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_indicate_partition_disengaged_uv [2022-11-20 09:31:01,314 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_indicate_partition_disengaged_uv [2022-11-20 09:31:01,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:31:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:31:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disconnect_channel [2022-11-20 09:31:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disconnect_channel [2022-11-20 09:31:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:31:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-20 09:31:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-20 09:31:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 09:31:01,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 09:31:01,315 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_channel_mgr [2022-11-20 09:31:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_channel_mgr [2022-11-20 09:31:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_save_remote_msgqueue_pa_uv [2022-11-20 09:31:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_save_remote_msgqueue_pa_uv [2022-11-20 09:31:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openrequest_uv [2022-11-20 09:31:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openrequest_uv [2022-11-20 09:31:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_heartbeat_exit_uv [2022-11-20 09:31:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_heartbeat_exit_uv [2022-11-20 09:31:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 09:31:01,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 09:31:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures [2022-11-20 09:31:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures [2022-11-20 09:31:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 09:31:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 09:31:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-11-20 09:31:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-11-20 09:31:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_any_partition_engaged_uv [2022-11-20 09:31:01,317 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_any_partition_engaged_uv [2022-11-20 09:31:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 09:31:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 09:31:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~C_INT [2022-11-20 09:31:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~C_INT [2022-11-20 09:31:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_rsvd_page_pa [2022-11-20 09:31:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_rsvd_page_pa [2022-11-20 09:31:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_partition [2022-11-20 09:31:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_partition [2022-11-20 09:31:01,318 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_part_uv [2022-11-20 09:31:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_part_uv [2022-11-20 09:31:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure uv_cpu_to_blade_id [2022-11-20 09:31:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_cpu_to_blade_id [2022-11-20 09:31:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 09:31:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 09:31:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_reactivation_uv [2022-11-20 09:31:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_reactivation_uv [2022-11-20 09:31:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~X~C_ULONG~X~C_ULONG~TO~C_INT [2022-11-20 09:31:01,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~X~C_ULONG~X~C_ULONG~TO~C_INT [2022-11-20 09:31:01,319 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_activate_kthreads [2022-11-20 09:31:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_activate_kthreads [2022-11-20 09:31:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_SHORT~TO~VOID [2022-11-20 09:31:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_SHORT~TO~VOID [2022-11-20 09:31:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~X~C_ULONG~TO~C_INT [2022-11-20 09:31:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~X~C_ULONG~TO~C_INT [2022-11-20 09:31:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_engaged_uv [2022-11-20 09:31:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_engaged_uv [2022-11-20 09:31:01,320 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 09:31:01,320 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 09:31:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_gru_msg [2022-11-20 09:31:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_gru_msg [2022-11-20 09:31:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:31:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:31:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_create_gru_mq_uv [2022-11-20 09:31:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_create_gru_mq_uv [2022-11-20 09:31:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2022-11-20 09:31:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2022-11-20 09:31:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_part_deref [2022-11-20 09:31:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_part_deref [2022-11-20 09:31:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_closerequest_uv [2022-11-20 09:31:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_closerequest_uv [2022-11-20 09:31:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_all_hbs_uv [2022-11-20 09:31:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_all_hbs_uv [2022-11-20 09:31:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:31:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:31:01,322 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_of_node [2022-11-20 09:31:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_of_node [2022-11-20 09:31:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_init_mq_node [2022-11-20 09:31:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_init_mq_node [2022-11-20 09:31:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_destroy_gru_mq_uv [2022-11-20 09:31:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_destroy_gru_mq_uv [2022-11-20 09:31:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_partition_rsvd_page_pa_uv [2022-11-20 09:31:01,338 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_partition_rsvd_page_pa_uv [2022-11-20 09:31:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-20 09:31:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-20 09:31:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:31:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:31:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_activate_IRQ_ch_uv [2022-11-20 09:31:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_activate_IRQ_ch_uv [2022-11-20 09:31:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_increment_heartbeat_uv [2022-11-20 09:31:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_increment_heartbeat_uv [2022-11-20 09:31:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2022-11-20 09:31:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2022-11-20 09:31:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_sent_chctl_flags [2022-11-20 09:31:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_sent_chctl_flags [2022-11-20 09:31:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:31:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:31:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:31:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:31:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_remote_heartbeat_uv [2022-11-20 09:31:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_remote_heartbeat_uv [2022-11-20 09:31:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:31:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:31:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_teardown_partitions [2022-11-20 09:31:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_teardown_partitions [2022-11-20 09:31:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_process_disconnect [2022-11-20 09:31:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_process_disconnect [2022-11-20 09:31:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_do_exit [2022-11-20 09:31:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_do_exit [2022-11-20 09:31:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 09:31:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 09:31:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_online_heartbeat_uv [2022-11-20 09:31:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_online_heartbeat_uv [2022-11-20 09:31:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_fifo_entry_uv [2022-11-20 09:31:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_fifo_entry_uv [2022-11-20 09:31:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_disallow_hb_uv [2022-11-20 09:31:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_disallow_hb_uv [2022-11-20 09:31:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:31:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_send_chctl_openreply_uv [2022-11-20 09:31:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_send_chctl_openreply_uv [2022-11-20 09:31:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-20 09:31:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-20 09:31:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_checker [2022-11-20 09:31:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_checker [2022-11-20 09:31:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2022-11-20 09:31:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2022-11-20 09:31:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 09:31:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 09:31:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-20 09:31:01,347 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-20 09:31:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_ch_structures_uv [2022-11-20 09:31:01,347 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_ch_structures_uv [2022-11-20 09:31:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_setup_rsvd_page_uv [2022-11-20 09:31:01,347 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_setup_rsvd_page_uv [2022-11-20 09:31:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:31:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-20 09:31:01,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-20 09:31:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 09:31:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 09:31:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_request_partition_deactivation_uv [2022-11-20 09:31:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_request_partition_deactivation_uv [2022-11-20 09:31:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_chctl_all_flags_uv [2022-11-20 09:31:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_chctl_all_flags_uv [2022-11-20 09:31:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_gru_mq_watchlist_free_uv [2022-11-20 09:31:01,348 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_gru_mq_watchlist_free_uv [2022-11-20 09:31:01,348 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_partition_going_down [2022-11-20 09:31:01,349 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_partition_going_down [2022-11-20 09:31:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-20 09:31:01,349 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-20 09:31:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:31:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 09:31:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:31:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:31:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-20 09:31:01,349 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-20 09:31:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:31:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:31:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:31:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 09:31:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 09:31:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 09:31:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 09:31:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sysctl_table [2022-11-20 09:31:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sysctl_table [2022-11-20 09:31:01,351 INFO L130 BoogieDeclarations]: Found specification of procedure uv_gpa [2022-11-20 09:31:01,354 INFO L138 BoogieDeclarations]: Found implementation of procedure uv_gpa [2022-11-20 09:31:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 09:31:01,355 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 09:31:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~C_SHORT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 09:31:01,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~C_SHORT~X~C_INT~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 09:31:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_get_deliverable_payload_uv [2022-11-20 09:31:01,355 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_get_deliverable_payload_uv [2022-11-20 09:31:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_notify_senders_of_disconnect_uv [2022-11-20 09:31:01,355 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_notify_senders_of_disconnect_uv [2022-11-20 09:31:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-20 09:31:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-20 09:31:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_make_first_contact_uv [2022-11-20 09:31:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_make_first_contact_uv [2022-11-20 09:31:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_n_of_deliverable_payloads_uv [2022-11-20 09:31:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_n_of_deliverable_payloads_uv [2022-11-20 09:31:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_hb_beater [2022-11-20 09:31:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_hb_beater [2022-11-20 09:31:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure is_uv_system [2022-11-20 09:31:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure is_uv_system [2022-11-20 09:31:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 09:31:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 09:31:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-11-20 09:31:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-11-20 09:31:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 09:31:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 09:31:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:31:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 09:31:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 09:31:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 09:31:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 09:31:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:31:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:31:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_assume_partition_disengaged_uv [2022-11-20 09:31:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_assume_partition_disengaged_uv [2022-11-20 09:31:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 09:31:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 09:31:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure xpc_cancel_partition_deactivation_request_uv [2022-11-20 09:31:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure xpc_cancel_partition_deactivation_request_uv [2022-11-20 09:31:02,574 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:31:02,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:31:05,079 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:32:29,009 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:32:29,038 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:32:29,042 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:32:29,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:32:29 BoogieIcfgContainer [2022-11-20 09:32:29,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:32:29,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:32:29,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:32:29,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:32:29,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:30:56" (1/3) ... [2022-11-20 09:32:29,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2431a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:32:29, skipping insertion in model container [2022-11-20 09:32:29,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:00" (2/3) ... [2022-11-20 09:32:29,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2431a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:32:29, skipping insertion in model container [2022-11-20 09:32:29,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:32:29" (3/3) ... [2022-11-20 09:32:29,060 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--misc--sgi-xp--xpc.ko-entry_point.cil.out.i [2022-11-20 09:32:29,079 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:32:29,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:32:29,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:32:29,212 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;@649c7bac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:32:29,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:32:29,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 2755 states, 1873 states have (on average 1.380138814735718) internal successors, (2585), 1974 states have internal predecessors, (2585), 719 states have call successors, (719), 162 states have call predecessors, (719), 161 states have return successors, (714), 681 states have call predecessors, (714), 714 states have call successors, (714) [2022-11-20 09:32:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-20 09:32:29,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:29,261 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:32:29,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:29,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:29,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2044565646, now seen corresponding path program 1 times [2022-11-20 09:32:29,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086779479] [2022-11-20 09:32:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:29,287 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 09:32:29,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:29,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:29,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:32,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 3144 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 09:32:32,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:32:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-20 09:32:32,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:32:32,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:32:32,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086779479] [2022-11-20 09:32:32,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086779479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:32,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:32,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:32:32,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474942023] [2022-11-20 09:32:32,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:32,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:32:32,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:32:32,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:32:32,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:32:32,924 INFO L87 Difference]: Start difference. First operand has 2755 states, 1873 states have (on average 1.380138814735718) internal successors, (2585), 1974 states have internal predecessors, (2585), 719 states have call successors, (719), 162 states have call predecessors, (719), 161 states have return successors, (714), 681 states have call predecessors, (714), 714 states have call successors, (714) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:32:33,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:33,266 INFO L93 Difference]: Finished difference Result 5505 states and 8228 transitions. [2022-11-20 09:32:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:32:33,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-11-20 09:32:33,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:33,309 INFO L225 Difference]: With dead ends: 5505 [2022-11-20 09:32:33,310 INFO L226 Difference]: Without dead ends: 2733 [2022-11-20 09:32:33,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:32:33,341 INFO L413 NwaCegarLoop]: 4014 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:33,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:32:33,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2022-11-20 09:32:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2733. [2022-11-20 09:32:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 1858 states have (on average 1.3745963401506998) internal successors, (2554), 1953 states have internal predecessors, (2554), 714 states have call successors, (714), 161 states have call predecessors, (714), 160 states have return successors, (712), 679 states have call predecessors, (712), 712 states have call successors, (712) [2022-11-20 09:32:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 3980 transitions. [2022-11-20 09:32:33,592 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 3980 transitions. Word has length 109 [2022-11-20 09:32:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:33,595 INFO L495 AbstractCegarLoop]: Abstraction has 2733 states and 3980 transitions. [2022-11-20 09:32:33,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 09:32:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 3980 transitions. [2022-11-20 09:32:33,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-20 09:32:33,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:33,604 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:32:33,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:33,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:33,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:33,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash 697708650, now seen corresponding path program 1 times [2022-11-20 09:32:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:33,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795222025] [2022-11-20 09:32:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:33,811 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 09:32:33,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:33,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:33,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:37,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 3144 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:32:37,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:32:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-20 09:32:37,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:32:37,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:32:37,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795222025] [2022-11-20 09:32:37,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795222025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:37,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:37,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:32:37,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237461490] [2022-11-20 09:32:37,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:37,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:32:37,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:32:37,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:32:37,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:32:37,952 INFO L87 Difference]: Start difference. First operand 2733 states and 3980 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 09:32:38,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:38,999 INFO L93 Difference]: Finished difference Result 5460 states and 7963 transitions. [2022-11-20 09:32:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:32:39,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 109 [2022-11-20 09:32:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:39,022 INFO L225 Difference]: With dead ends: 5460 [2022-11-20 09:32:39,026 INFO L226 Difference]: Without dead ends: 2734 [2022-11-20 09:32:39,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:32:39,044 INFO L413 NwaCegarLoop]: 3963 mSDtfsCounter, 6 mSDsluCounter, 15815 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 19778 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:39,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 19778 Invalid, 130 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 09:32:39,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2022-11-20 09:32:39,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2734. [2022-11-20 09:32:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 1859 states have (on average 1.3743948359332974) internal successors, (2555), 1954 states have internal predecessors, (2555), 714 states have call successors, (714), 161 states have call predecessors, (714), 160 states have return successors, (712), 679 states have call predecessors, (712), 712 states have call successors, (712) [2022-11-20 09:32:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3981 transitions. [2022-11-20 09:32:39,188 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 3981 transitions. Word has length 109 [2022-11-20 09:32:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:39,191 INFO L495 AbstractCegarLoop]: Abstraction has 2734 states and 3981 transitions. [2022-11-20 09:32:39,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 09:32:39,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 3981 transitions. [2022-11-20 09:32:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 09:32:39,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:39,202 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:32:39,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:39,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:39,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:39,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1518955288, now seen corresponding path program 1 times [2022-11-20 09:32:39,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:39,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898653981] [2022-11-20 09:32:39,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:39,422 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 09:32:39,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:39,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:39,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:43,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 3166 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:32:43,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:32:43,902 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-20 09:32:43,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:32:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-20 09:32:44,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:32:44,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898653981] [2022-11-20 09:32:44,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898653981] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:32:44,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:32:44,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 09:32:44,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071369948] [2022-11-20 09:32:44,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:32:44,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 09:32:44,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:32:44,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 09:32:44,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 09:32:44,823 INFO L87 Difference]: Start difference. First operand 2734 states and 3981 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 09:32:46,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:46,619 INFO L93 Difference]: Finished difference Result 5472 states and 7979 transitions. [2022-11-20 09:32:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:32:46,621 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 111 [2022-11-20 09:32:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:46,642 INFO L225 Difference]: With dead ends: 5472 [2022-11-20 09:32:46,642 INFO L226 Difference]: Without dead ends: 2750 [2022-11-20 09:32:46,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:32:46,660 INFO L413 NwaCegarLoop]: 3966 mSDtfsCounter, 11 mSDsluCounter, 27675 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 31641 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:46,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 31641 Invalid, 264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 09:32:46,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2022-11-20 09:32:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2750. [2022-11-20 09:32:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 1870 states have (on average 1.3727272727272728) internal successors, (2567), 1965 states have internal predecessors, (2567), 716 states have call successors, (716), 164 states have call predecessors, (716), 163 states have return successors, (714), 681 states have call predecessors, (714), 714 states have call successors, (714) [2022-11-20 09:32:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3997 transitions. [2022-11-20 09:32:46,785 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3997 transitions. Word has length 111 [2022-11-20 09:32:46,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:46,786 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 3997 transitions. [2022-11-20 09:32:46,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 09:32:46,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3997 transitions. [2022-11-20 09:32:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 09:32:46,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:46,790 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:32:46,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:47,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:47,003 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:47,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1352733226, now seen corresponding path program 2 times [2022-11-20 09:32:47,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:47,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270926514] [2022-11-20 09:32:47,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:32:47,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:32:47,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:47,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:47,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:50,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:32:50,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:32:50,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2965 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:32:50,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:32:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-20 09:32:50,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:32:50,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:32:50,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270926514] [2022-11-20 09:32:50,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270926514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:50,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:50,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:32:50,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497941692] [2022-11-20 09:32:50,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:50,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:32:50,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:32:50,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:32:50,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:32:50,756 INFO L87 Difference]: Start difference. First operand 2750 states and 3997 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 09:32:50,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:50,991 INFO L93 Difference]: Finished difference Result 5902 states and 8666 transitions. [2022-11-20 09:32:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:32:50,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 113 [2022-11-20 09:32:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:51,021 INFO L225 Difference]: With dead ends: 5902 [2022-11-20 09:32:51,021 INFO L226 Difference]: Without dead ends: 3167 [2022-11-20 09:32:51,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 09:32:51,038 INFO L413 NwaCegarLoop]: 4264 mSDtfsCounter, 462 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 8248 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:51,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 8248 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:32:51,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-11-20 09:32:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2751. [2022-11-20 09:32:51,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 1871 states have (on average 1.372528059861037) internal successors, (2568), 1966 states have internal predecessors, (2568), 716 states have call successors, (716), 164 states have call predecessors, (716), 163 states have return successors, (714), 681 states have call predecessors, (714), 714 states have call successors, (714) [2022-11-20 09:32:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 3998 transitions. [2022-11-20 09:32:51,162 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 3998 transitions. Word has length 113 [2022-11-20 09:32:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:51,164 INFO L495 AbstractCegarLoop]: Abstraction has 2751 states and 3998 transitions. [2022-11-20 09:32:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 09:32:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 3998 transitions. [2022-11-20 09:32:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 09:32:51,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:51,168 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:32:51,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 09:32:51,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:51,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:51,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:51,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1359719512, now seen corresponding path program 1 times [2022-11-20 09:32:51,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:51,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574359328] [2022-11-20 09:32:51,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:51,392 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 09:32:51,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:51,393 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:51,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:55,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 3417 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 09:32:55,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:32:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-20 09:32:55,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:32:56,976 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-20 09:32:56,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:32:56,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574359328] [2022-11-20 09:32:56,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574359328] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:32:56,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:32:56,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 09:32:56,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777841490] [2022-11-20 09:32:56,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:32:56,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:32:56,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:32:56,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:32:56,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:32:56,979 INFO L87 Difference]: Start difference. First operand 2751 states and 3998 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 09:32:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:58,919 INFO L93 Difference]: Finished difference Result 5505 states and 8011 transitions. [2022-11-20 09:32:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 09:32:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 120 [2022-11-20 09:32:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:58,938 INFO L225 Difference]: With dead ends: 5505 [2022-11-20 09:32:58,938 INFO L226 Difference]: Without dead ends: 2763 [2022-11-20 09:32:58,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:32:58,952 INFO L413 NwaCegarLoop]: 3966 mSDtfsCounter, 18 mSDsluCounter, 27695 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 31661 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:58,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 31661 Invalid, 285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 09:32:58,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2022-11-20 09:32:59,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2022-11-20 09:32:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 1880 states have (on average 1.3718085106382978) internal successors, (2579), 1975 states have internal predecessors, (2579), 717 states have call successors, (717), 166 states have call predecessors, (717), 165 states have return successors, (715), 682 states have call predecessors, (715), 715 states have call successors, (715) [2022-11-20 09:32:59,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4011 transitions. [2022-11-20 09:32:59,081 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4011 transitions. Word has length 120 [2022-11-20 09:32:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:59,082 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 4011 transitions. [2022-11-20 09:32:59,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 13 states have internal predecessors, (72), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 09:32:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4011 transitions. [2022-11-20 09:32:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 09:32:59,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:59,087 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:32:59,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:59,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:59,303 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:32:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:59,304 INFO L85 PathProgramCache]: Analyzing trace with hash 789296538, now seen corresponding path program 2 times [2022-11-20 09:32:59,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:59,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058707370] [2022-11-20 09:32:59,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:32:59,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:32:59,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:59,311 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:32:59,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:02,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:33:02,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:33:02,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:02,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:03,035 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-20 09:33:03,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:03,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:03,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058707370] [2022-11-20 09:33:03,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058707370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:03,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:03,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:03,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368986309] [2022-11-20 09:33:03,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:03,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:03,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:03,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:03,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:03,038 INFO L87 Difference]: Start difference. First operand 2763 states and 4011 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 09:33:03,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:03,297 INFO L93 Difference]: Finished difference Result 6089 states and 8959 transitions. [2022-11-20 09:33:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:03,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 122 [2022-11-20 09:33:03,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:03,318 INFO L225 Difference]: With dead ends: 6089 [2022-11-20 09:33:03,318 INFO L226 Difference]: Without dead ends: 3341 [2022-11-20 09:33:03,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 09:33:03,332 INFO L413 NwaCegarLoop]: 4632 mSDtfsCounter, 669 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 8701 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:03,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 8701 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:33:03,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3341 states. [2022-11-20 09:33:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3341 to 2765. [2022-11-20 09:33:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 1882 states have (on average 1.3719447396386824) internal successors, (2582), 1977 states have internal predecessors, (2582), 717 states have call successors, (717), 166 states have call predecessors, (717), 165 states have return successors, (715), 682 states have call predecessors, (715), 715 states have call successors, (715) [2022-11-20 09:33:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 4014 transitions. [2022-11-20 09:33:03,445 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 4014 transitions. Word has length 122 [2022-11-20 09:33:03,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:03,446 INFO L495 AbstractCegarLoop]: Abstraction has 2765 states and 4014 transitions. [2022-11-20 09:33:03,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 09:33:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 4014 transitions. [2022-11-20 09:33:03,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 09:33:03,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:03,449 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:33:03,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:03,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:03,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:03,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:03,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1469354908, now seen corresponding path program 1 times [2022-11-20 09:33:03,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:03,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448768876] [2022-11-20 09:33:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:03,668 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 09:33:03,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:03,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:03,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:08,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 3439 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:33:08,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 09:33:08,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:33:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-20 09:33:09,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:09,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448768876] [2022-11-20 09:33:09,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448768876] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:33:09,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:33:09,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 09:33:09,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453977358] [2022-11-20 09:33:09,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:33:09,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:33:09,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:09,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:33:09,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:33:09,776 INFO L87 Difference]: Start difference. First operand 2765 states and 4014 transitions. Second operand has 15 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 15 states have internal predecessors, (74), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 09:33:11,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:11,443 INFO L93 Difference]: Finished difference Result 5527 states and 8028 transitions. [2022-11-20 09:33:11,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 09:33:11,444 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 15 states have internal predecessors, (74), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 122 [2022-11-20 09:33:11,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:11,461 INFO L225 Difference]: With dead ends: 5527 [2022-11-20 09:33:11,461 INFO L226 Difference]: Without dead ends: 2766 [2022-11-20 09:33:11,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-11-20 09:33:11,472 INFO L413 NwaCegarLoop]: 3967 mSDtfsCounter, 38 mSDsluCounter, 19806 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 23773 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:11,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 23773 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 09:33:11,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-11-20 09:33:11,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2766. [2022-11-20 09:33:11,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 1883 states have (on average 1.3717472118959109) internal successors, (2583), 1978 states have internal predecessors, (2583), 717 states have call successors, (717), 166 states have call predecessors, (717), 165 states have return successors, (715), 682 states have call predecessors, (715), 715 states have call successors, (715) [2022-11-20 09:33:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 4015 transitions. [2022-11-20 09:33:11,575 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 4015 transitions. Word has length 122 [2022-11-20 09:33:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:11,575 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 4015 transitions. [2022-11-20 09:33:11,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 15 states have internal predecessors, (74), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-20 09:33:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 4015 transitions. [2022-11-20 09:33:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 09:33:11,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:11,578 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-20 09:33:11,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:11,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:11,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:11,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:11,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1255153818, now seen corresponding path program 2 times [2022-11-20 09:33:11,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:11,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753926705] [2022-11-20 09:33:11,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:33:11,794 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 09:33:11,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:11,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:11,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:15,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:33:15,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:33:15,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:15,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-20 09:33:16,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:16,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:16,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753926705] [2022-11-20 09:33:16,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753926705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:16,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:16,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:33:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438307590] [2022-11-20 09:33:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:16,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:16,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:16,215 INFO L87 Difference]: Start difference. First operand 2766 states and 4015 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 09:33:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:16,378 INFO L93 Difference]: Finished difference Result 4879 states and 7206 transitions. [2022-11-20 09:33:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 124 [2022-11-20 09:33:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:16,419 INFO L225 Difference]: With dead ends: 4879 [2022-11-20 09:33:16,419 INFO L226 Difference]: Without dead ends: 4876 [2022-11-20 09:33:16,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 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 09:33:16,423 INFO L413 NwaCegarLoop]: 4874 mSDtfsCounter, 3861 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3861 SdHoareTripleChecker+Valid, 8073 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:16,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3861 Valid, 8073 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:33:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4876 states. [2022-11-20 09:33:16,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4876 to 4796. [2022-11-20 09:33:16,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4796 states, 3318 states have (on average 1.380952380952381) internal successors, (4582), 3474 states have internal predecessors, (4582), 1174 states have call successors, (1174), 305 states have call predecessors, (1174), 303 states have return successors, (1310), 1110 states have call predecessors, (1310), 1171 states have call successors, (1310) [2022-11-20 09:33:16,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4796 states to 4796 states and 7066 transitions. [2022-11-20 09:33:16,733 INFO L78 Accepts]: Start accepts. Automaton has 4796 states and 7066 transitions. Word has length 124 [2022-11-20 09:33:16,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:16,734 INFO L495 AbstractCegarLoop]: Abstraction has 4796 states and 7066 transitions. [2022-11-20 09:33:16,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 09:33:16,734 INFO L276 IsEmpty]: Start isEmpty. Operand 4796 states and 7066 transitions. [2022-11-20 09:33:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-20 09:33:16,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:16,744 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:16,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:16,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:16,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:16,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:16,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1096115010, now seen corresponding path program 1 times [2022-11-20 09:33:16,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:16,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046317863] [2022-11-20 09:33:16,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:16,969 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 09:33:16,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:16,970 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:17,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:21,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 4212 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 09:33:21,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-20 09:33:22,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:33:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 09:33:23,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:23,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046317863] [2022-11-20 09:33:23,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046317863] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:33:23,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:33:23,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-20 09:33:23,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954595940] [2022-11-20 09:33:23,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:33:23,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 09:33:23,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:23,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 09:33:23,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-20 09:33:23,967 INFO L87 Difference]: Start difference. First operand 4796 states and 7066 transitions. Second operand has 17 states, 15 states have (on average 11.466666666666667) internal successors, (172), 17 states have internal predecessors, (172), 4 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:33:26,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:26,083 INFO L93 Difference]: Finished difference Result 9604 states and 14161 transitions. [2022-11-20 09:33:26,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 09:33:26,085 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 11.466666666666667) internal successors, (172), 17 states have internal predecessors, (172), 4 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 257 [2022-11-20 09:33:26,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:26,121 INFO L225 Difference]: With dead ends: 9604 [2022-11-20 09:33:26,122 INFO L226 Difference]: Without dead ends: 4814 [2022-11-20 09:33:26,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-20 09:33:26,138 INFO L413 NwaCegarLoop]: 3967 mSDtfsCounter, 35 mSDsluCounter, 27730 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 31697 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:26,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 31697 Invalid, 334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 09:33:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4814 states. [2022-11-20 09:33:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4814 to 4814. [2022-11-20 09:33:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4814 states, 3334 states have (on average 1.3809238152369525) internal successors, (4604), 3490 states have internal predecessors, (4604), 1174 states have call successors, (1174), 307 states have call predecessors, (1174), 305 states have return successors, (1310), 1110 states have call predecessors, (1310), 1171 states have call successors, (1310) [2022-11-20 09:33:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 7088 transitions. [2022-11-20 09:33:26,344 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 7088 transitions. Word has length 257 [2022-11-20 09:33:26,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:26,345 INFO L495 AbstractCegarLoop]: Abstraction has 4814 states and 7088 transitions. [2022-11-20 09:33:26,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 11.466666666666667) internal successors, (172), 17 states have internal predecessors, (172), 4 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:33:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 7088 transitions. [2022-11-20 09:33:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-20 09:33:26,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:26,355 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:26,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:26,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:26,579 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:26,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:26,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1882749897, now seen corresponding path program 1 times [2022-11-20 09:33:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:26,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552662683] [2022-11-20 09:33:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:26,584 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 09:33:26,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:26,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:26,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:31,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 4234 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 09:33:31,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 44 proven. 15 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-11-20 09:33:32,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:33:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-20 09:33:34,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:34,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552662683] [2022-11-20 09:33:34,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552662683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:33:34,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:33:34,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-20 09:33:34,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779729656] [2022-11-20 09:33:34,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:33:34,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 09:33:34,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:34,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 09:33:34,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-20 09:33:34,428 INFO L87 Difference]: Start difference. First operand 4814 states and 7088 transitions. Second operand has 19 states, 17 states have (on average 10.235294117647058) internal successors, (174), 19 states have internal predecessors, (174), 4 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:33:37,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:37,556 INFO L93 Difference]: Finished difference Result 9628 states and 14179 transitions. [2022-11-20 09:33:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 09:33:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 10.235294117647058) internal successors, (174), 19 states have internal predecessors, (174), 4 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 259 [2022-11-20 09:33:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:37,582 INFO L225 Difference]: With dead ends: 9628 [2022-11-20 09:33:37,582 INFO L226 Difference]: Without dead ends: 4816 [2022-11-20 09:33:37,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-20 09:33:37,600 INFO L413 NwaCegarLoop]: 3968 mSDtfsCounter, 41 mSDsluCounter, 43567 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 47535 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:37,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 47535 Invalid, 470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 09:33:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2022-11-20 09:33:37,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 4816. [2022-11-20 09:33:37,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 3336 states have (on average 1.380695443645084) internal successors, (4606), 3492 states have internal predecessors, (4606), 1174 states have call successors, (1174), 307 states have call predecessors, (1174), 305 states have return successors, (1310), 1110 states have call predecessors, (1310), 1171 states have call successors, (1310) [2022-11-20 09:33:37,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 7090 transitions. [2022-11-20 09:33:37,800 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 7090 transitions. Word has length 259 [2022-11-20 09:33:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:37,800 INFO L495 AbstractCegarLoop]: Abstraction has 4816 states and 7090 transitions. [2022-11-20 09:33:37,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 10.235294117647058) internal successors, (174), 19 states have internal predecessors, (174), 4 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:33:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 7090 transitions. [2022-11-20 09:33:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-20 09:33:37,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:37,811 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:37,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:38,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:38,035 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:38,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:38,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1918410105, now seen corresponding path program 2 times [2022-11-20 09:33:38,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:38,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589695351] [2022-11-20 09:33:38,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:33:38,039 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 09:33:38,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:38,040 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:38,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:42,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:33:42,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:33:42,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 3464 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:42,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:43,032 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-20 09:33:43,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:43,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:43,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589695351] [2022-11-20 09:33:43,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589695351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:43,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:43,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:33:43,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464657876] [2022-11-20 09:33:43,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:43,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:43,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:43,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:43,036 INFO L87 Difference]: Start difference. First operand 4816 states and 7090 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:33:43,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:43,430 INFO L93 Difference]: Finished difference Result 14392 states and 21309 transitions. [2022-11-20 09:33:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:43,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 261 [2022-11-20 09:33:43,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:43,484 INFO L225 Difference]: With dead ends: 14392 [2022-11-20 09:33:43,484 INFO L226 Difference]: Without dead ends: 9591 [2022-11-20 09:33:43,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 259 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 09:33:43,505 INFO L413 NwaCegarLoop]: 5313 mSDtfsCounter, 3948 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3948 SdHoareTripleChecker+Valid, 9292 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:43,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3948 Valid, 9292 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:33:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9591 states. [2022-11-20 09:33:43,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9591 to 9576. [2022-11-20 09:33:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9576 states, 6640 states have (on average 1.3822289156626506) internal successors, (9178), 6956 states have internal predecessors, (9178), 2329 states have call successors, (2329), 609 states have call predecessors, (2329), 606 states have return successors, (2713), 2198 states have call predecessors, (2713), 2324 states have call successors, (2713) [2022-11-20 09:33:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9576 states to 9576 states and 14220 transitions. [2022-11-20 09:33:44,061 INFO L78 Accepts]: Start accepts. Automaton has 9576 states and 14220 transitions. Word has length 261 [2022-11-20 09:33:44,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:44,063 INFO L495 AbstractCegarLoop]: Abstraction has 9576 states and 14220 transitions. [2022-11-20 09:33:44,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:33:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9576 states and 14220 transitions. [2022-11-20 09:33:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-20 09:33:44,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:44,076 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:44,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:44,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:44,291 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:44,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:44,292 INFO L85 PathProgramCache]: Analyzing trace with hash -457256207, now seen corresponding path program 1 times [2022-11-20 09:33:44,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:44,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704950659] [2022-11-20 09:33:44,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:44,297 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 09:33:44,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:44,298 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:44,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:49,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 4253 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 09:33:49,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-20 09:33:50,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:33:52,815 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-20 09:33:52,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:52,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704950659] [2022-11-20 09:33:52,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704950659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:33:52,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:33:52,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-20 09:33:52,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840841331] [2022-11-20 09:33:52,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:33:52,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 09:33:52,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:52,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 09:33:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-20 09:33:52,818 INFO L87 Difference]: Start difference. First operand 9576 states and 14220 transitions. Second operand has 21 states, 19 states have (on average 9.368421052631579) internal successors, (178), 21 states have internal predecessors, (178), 4 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:33:56,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:56,375 INFO L93 Difference]: Finished difference Result 19164 states and 28461 transitions. [2022-11-20 09:33:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 09:33:56,376 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 9.368421052631579) internal successors, (178), 21 states have internal predecessors, (178), 4 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 262 [2022-11-20 09:33:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:56,422 INFO L225 Difference]: With dead ends: 19164 [2022-11-20 09:33:56,422 INFO L226 Difference]: Without dead ends: 9580 [2022-11-20 09:33:56,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-11-20 09:33:56,459 INFO L413 NwaCegarLoop]: 3968 mSDtfsCounter, 40 mSDsluCounter, 59402 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 63370 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:56,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 63370 Invalid, 612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 09:33:56,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9580 states. [2022-11-20 09:33:57,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9580 to 9580. [2022-11-20 09:33:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9580 states, 6644 states have (on average 1.3819987959060807) internal successors, (9182), 6960 states have internal predecessors, (9182), 2329 states have call successors, (2329), 609 states have call predecessors, (2329), 606 states have return successors, (2713), 2198 states have call predecessors, (2713), 2324 states have call successors, (2713) [2022-11-20 09:33:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9580 states to 9580 states and 14224 transitions. [2022-11-20 09:33:57,126 INFO L78 Accepts]: Start accepts. Automaton has 9580 states and 14224 transitions. Word has length 262 [2022-11-20 09:33:57,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:57,126 INFO L495 AbstractCegarLoop]: Abstraction has 9580 states and 14224 transitions. [2022-11-20 09:33:57,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 9.368421052631579) internal successors, (178), 21 states have internal predecessors, (178), 4 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:33:57,127 INFO L276 IsEmpty]: Start isEmpty. Operand 9580 states and 14224 transitions. [2022-11-20 09:33:57,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-20 09:33:57,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:57,142 INFO L195 NwaCegarLoop]: trace histogram [14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:57,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:57,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:57,368 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:33:57,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:57,369 INFO L85 PathProgramCache]: Analyzing trace with hash -535316735, now seen corresponding path program 1 times [2022-11-20 09:33:57,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:57,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026066082] [2022-11-20 09:33:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:57,373 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 09:33:57,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:57,375 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:33:57,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 09:34:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:02,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 4274 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 09:34:02,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 72 proven. 28 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-20 09:34:03,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:34:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-11-20 09:34:06,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:06,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026066082] [2022-11-20 09:34:06,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026066082] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:34:06,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:34:06,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-20 09:34:06,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365916535] [2022-11-20 09:34:06,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:34:06,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 09:34:06,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:06,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 09:34:06,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-20 09:34:06,067 INFO L87 Difference]: Start difference. First operand 9580 states and 14224 transitions. Second operand has 23 states, 21 states have (on average 8.571428571428571) internal successors, (180), 23 states have internal predecessors, (180), 4 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:34:09,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:09,513 INFO L93 Difference]: Finished difference Result 19172 states and 28469 transitions. [2022-11-20 09:34:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:34:09,514 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 8.571428571428571) internal successors, (180), 23 states have internal predecessors, (180), 4 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 264 [2022-11-20 09:34:09,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:09,553 INFO L225 Difference]: With dead ends: 19172 [2022-11-20 09:34:09,553 INFO L226 Difference]: Without dead ends: 9584 [2022-11-20 09:34:09,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-11-20 09:34:09,583 INFO L413 NwaCegarLoop]: 3968 mSDtfsCounter, 53 mSDsluCounter, 51497 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 55465 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:09,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 55465 Invalid, 583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 09:34:09,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9584 states. [2022-11-20 09:34:09,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9584 to 9584. [2022-11-20 09:34:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9584 states, 6648 states have (on average 1.3817689530685922) internal successors, (9186), 6964 states have internal predecessors, (9186), 2329 states have call successors, (2329), 609 states have call predecessors, (2329), 606 states have return successors, (2713), 2198 states have call predecessors, (2713), 2324 states have call successors, (2713) [2022-11-20 09:34:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9584 states to 9584 states and 14228 transitions. [2022-11-20 09:34:10,003 INFO L78 Accepts]: Start accepts. Automaton has 9584 states and 14228 transitions. Word has length 264 [2022-11-20 09:34:10,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:10,004 INFO L495 AbstractCegarLoop]: Abstraction has 9584 states and 14228 transitions. [2022-11-20 09:34:10,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 8.571428571428571) internal successors, (180), 23 states have internal predecessors, (180), 4 states have call successors, (61), 2 states have call predecessors, (61), 5 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2022-11-20 09:34:10,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9584 states and 14228 transitions. [2022-11-20 09:34:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-20 09:34:10,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:10,023 INFO L195 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:10,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:10,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:10,247 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1645700815, now seen corresponding path program 2 times [2022-11-20 09:34:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:10,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899908871] [2022-11-20 09:34:10,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:34:10,252 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 09:34:10,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:10,254 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:10,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 09:34:13,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:34:13,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:34:14,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 3460 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:34:14,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-11-20 09:34:14,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:14,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:14,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899908871] [2022-11-20 09:34:14,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899908871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:14,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:14,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:14,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004372050] [2022-11-20 09:34:14,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:14,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:14,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:14,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:14,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:14,192 INFO L87 Difference]: Start difference. First operand 9584 states and 14228 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:34:15,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:15,241 INFO L93 Difference]: Finished difference Result 28474 states and 42246 transitions. [2022-11-20 09:34:15,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:15,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 266 [2022-11-20 09:34:15,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:15,323 INFO L225 Difference]: With dead ends: 28474 [2022-11-20 09:34:15,324 INFO L226 Difference]: Without dead ends: 18905 [2022-11-20 09:34:15,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 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 09:34:15,360 INFO L413 NwaCegarLoop]: 4676 mSDtfsCounter, 3878 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 8629 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:15,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3878 Valid, 8629 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:34:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18905 states. [2022-11-20 09:34:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18905 to 18894. [2022-11-20 09:34:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18894 states, 13070 states have (on average 1.3801071155317521) internal successors, (18038), 13694 states have internal predecessors, (18038), 4615 states have call successors, (4615), 1213 states have call predecessors, (4615), 1208 states have return successors, (5372), 4350 states have call predecessors, (5372), 4606 states have call successors, (5372) [2022-11-20 09:34:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18894 states to 18894 states and 28025 transitions. [2022-11-20 09:34:16,300 INFO L78 Accepts]: Start accepts. Automaton has 18894 states and 28025 transitions. Word has length 266 [2022-11-20 09:34:16,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:16,301 INFO L495 AbstractCegarLoop]: Abstraction has 18894 states and 28025 transitions. [2022-11-20 09:34:16,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:34:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 18894 states and 28025 transitions. [2022-11-20 09:34:16,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-20 09:34:16,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:16,315 INFO L195 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:34:16,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:16,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:16,531 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash -723422097, now seen corresponding path program 1 times [2022-11-20 09:34:16,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:16,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997764163] [2022-11-20 09:34:16,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:16,536 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 09:34:16,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:16,538 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:16,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 09:34:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:23,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 4306 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:34:23,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-11-20 09:34:23,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:23,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:23,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997764163] [2022-11-20 09:34:23,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997764163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:23,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:23,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:34:23,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402983174] [2022-11-20 09:34:23,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:23,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:23,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:23,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:23,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:23,660 INFO L87 Difference]: Start difference. First operand 18894 states and 28025 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:34:24,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:24,362 INFO L93 Difference]: Finished difference Result 37699 states and 55909 transitions. [2022-11-20 09:34:24,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:24,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 268 [2022-11-20 09:34:24,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:24,467 INFO L225 Difference]: With dead ends: 37699 [2022-11-20 09:34:24,467 INFO L226 Difference]: Without dead ends: 18820 [2022-11-20 09:34:24,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 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 09:34:24,702 INFO L413 NwaCegarLoop]: 3975 mSDtfsCounter, 3926 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3926 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:24,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3926 Valid, 3975 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:34:24,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18820 states. [2022-11-20 09:34:25,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18820 to 18804. [2022-11-20 09:34:25,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18804 states, 13018 states have (on average 1.380396374251037) internal successors, (17970), 13634 states have internal predecessors, (17970), 4587 states have call successors, (4587), 1203 states have call predecessors, (4587), 1198 states have return successors, (5322), 4322 states have call predecessors, (5322), 4578 states have call successors, (5322) [2022-11-20 09:34:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18804 states to 18804 states and 27879 transitions. [2022-11-20 09:34:25,686 INFO L78 Accepts]: Start accepts. Automaton has 18804 states and 27879 transitions. Word has length 268 [2022-11-20 09:34:25,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:25,687 INFO L495 AbstractCegarLoop]: Abstraction has 18804 states and 27879 transitions. [2022-11-20 09:34:25,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 09:34:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 18804 states and 27879 transitions. [2022-11-20 09:34:25,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-20 09:34:25,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:25,707 INFO L195 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 09:34:25,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:25,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:25,923 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:25,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash 219122070, now seen corresponding path program 1 times [2022-11-20 09:34:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:25,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862958827] [2022-11-20 09:34:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:25,929 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 09:34:25,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:25,930 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:25,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 09:34:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:32,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 4275 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:34:32,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-20 09:34:32,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:32,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:32,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862958827] [2022-11-20 09:34:32,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862958827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:32,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:32,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:32,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636753673] [2022-11-20 09:34:32,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:32,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:32,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:32,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:32,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:32,799 INFO L87 Difference]: Start difference. First operand 18804 states and 27879 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 09:34:35,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:36,337 INFO L93 Difference]: Finished difference Result 48738 states and 71601 transitions. [2022-11-20 09:34:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:36,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 265 [2022-11-20 09:34:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:36,451 INFO L225 Difference]: With dead ends: 48738 [2022-11-20 09:34:36,451 INFO L226 Difference]: Without dead ends: 29949 [2022-11-20 09:34:36,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 263 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 09:34:36,527 INFO L413 NwaCegarLoop]: 4464 mSDtfsCounter, 3934 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3934 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:36,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3934 Valid, 6694 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 09:34:36,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29949 states. [2022-11-20 09:34:38,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29949 to 29938. [2022-11-20 09:34:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29938 states, 20618 states have (on average 1.370550004850131) internal successors, (28258), 21566 states have internal predecessors, (28258), 7179 states have call successors, (7179), 2145 states have call predecessors, (7179), 2140 states have return successors, (8272), 6758 states have call predecessors, (8272), 7170 states have call successors, (8272) [2022-11-20 09:34:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29938 states to 29938 states and 43709 transitions. [2022-11-20 09:34:38,444 INFO L78 Accepts]: Start accepts. Automaton has 29938 states and 43709 transitions. Word has length 265 [2022-11-20 09:34:38,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:38,445 INFO L495 AbstractCegarLoop]: Abstraction has 29938 states and 43709 transitions. [2022-11-20 09:34:38,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 09:34:38,445 INFO L276 IsEmpty]: Start isEmpty. Operand 29938 states and 43709 transitions. [2022-11-20 09:34:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-11-20 09:34:38,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:38,468 INFO L195 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 09:34:38,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:38,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:38,692 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:38,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:38,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1911946918, now seen corresponding path program 1 times [2022-11-20 09:34:38,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:38,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578308287] [2022-11-20 09:34:38,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:38,874 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 09:34:38,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:38,879 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:38,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 09:34:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:45,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 4294 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:34:45,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-20 09:34:45,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:45,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:45,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578308287] [2022-11-20 09:34:45,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578308287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:45,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:45,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:45,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596320681] [2022-11-20 09:34:45,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:45,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:45,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:45,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:45,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:45,693 INFO L87 Difference]: Start difference. First operand 29938 states and 43709 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 09:34:49,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:49,099 INFO L93 Difference]: Finished difference Result 89540 states and 130685 transitions. [2022-11-20 09:34:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:49,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 269 [2022-11-20 09:34:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:49,380 INFO L225 Difference]: With dead ends: 89540 [2022-11-20 09:34:49,380 INFO L226 Difference]: Without dead ends: 59095 [2022-11-20 09:34:49,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 267 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 09:34:49,478 INFO L413 NwaCegarLoop]: 4830 mSDtfsCounter, 3936 mSDsluCounter, 3949 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3936 SdHoareTripleChecker+Valid, 8779 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:49,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3936 Valid, 8779 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:34:49,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59095 states. [2022-11-20 09:34:53,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59095 to 59059. [2022-11-20 09:34:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59059 states, 40709 states have (on average 1.371981625684738) internal successors, (55852), 42578 states have internal predecessors, (55852), 14171 states have call successors, (14171), 4203 states have call predecessors, (14171), 4178 states have return successors, (16314), 13332 states have call predecessors, (16314), 14139 states have call successors, (16314) [2022-11-20 09:34:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59059 states to 59059 states and 86337 transitions. [2022-11-20 09:34:53,773 INFO L78 Accepts]: Start accepts. Automaton has 59059 states and 86337 transitions. Word has length 269 [2022-11-20 09:34:53,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:53,773 INFO L495 AbstractCegarLoop]: Abstraction has 59059 states and 86337 transitions. [2022-11-20 09:34:53,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 09:34:53,774 INFO L276 IsEmpty]: Start isEmpty. Operand 59059 states and 86337 transitions. [2022-11-20 09:34:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-11-20 09:34:53,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:53,844 INFO L195 NwaCegarLoop]: trace histogram [16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:34:54,302 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forcibly destroying the process [2022-11-20 09:34:54,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 09:34:54,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:54,303 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:34:54,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash -4281723, now seen corresponding path program 1 times [2022-11-20 09:34:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:54,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408998153] [2022-11-20 09:34:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:54,309 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 09:34:54,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:54,347 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:34:54,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 09:35:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:35:01,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:35:01,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:35:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-20 09:35:01,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:35:01,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:35:01,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408998153] [2022-11-20 09:35:01,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408998153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:35:01,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:35:01,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:35:01,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032332328] [2022-11-20 09:35:01,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:35:01,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:35:01,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:35:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:35:01,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:35:01,784 INFO L87 Difference]: Start difference. First operand 59059 states and 86337 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-20 09:35:04,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:07,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:35:07,559 INFO L93 Difference]: Finished difference Result 118151 states and 172717 transitions. [2022-11-20 09:35:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:35:07,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 333 [2022-11-20 09:35:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:35:07,955 INFO L225 Difference]: With dead ends: 118151 [2022-11-20 09:35:07,955 INFO L226 Difference]: Without dead ends: 59043 [2022-11-20 09:35:08,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 329 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 09:35:08,098 INFO L413 NwaCegarLoop]: 3973 mSDtfsCounter, 6 mSDsluCounter, 11897 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15870 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:35:08,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15870 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 09:35:08,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59043 states. [2022-11-20 09:35:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59043 to 59043. [2022-11-20 09:35:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59043 states, 40693 states have (on average 1.3717346963851276) internal successors, (55820), 42562 states have internal predecessors, (55820), 14171 states have call successors, (14171), 4203 states have call predecessors, (14171), 4178 states have return successors, (16314), 13332 states have call predecessors, (16314), 14139 states have call successors, (16314) [2022-11-20 09:35:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59043 states to 59043 states and 86305 transitions. [2022-11-20 09:35:11,967 INFO L78 Accepts]: Start accepts. Automaton has 59043 states and 86305 transitions. Word has length 333 [2022-11-20 09:35:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:35:11,968 INFO L495 AbstractCegarLoop]: Abstraction has 59043 states and 86305 transitions. [2022-11-20 09:35:11,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-20 09:35:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 59043 states and 86305 transitions. [2022-11-20 09:35:12,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-20 09:35:12,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:35:12,037 INFO L195 NwaCegarLoop]: trace histogram [16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 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] [2022-11-20 09:35:12,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-11-20 09:35:12,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:35:12,251 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:35:12,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:35:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1821215024, now seen corresponding path program 1 times [2022-11-20 09:35:12,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:35:12,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477425979] [2022-11-20 09:35:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:35:12,256 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 09:35:12,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:35:12,257 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:35:12,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 09:35:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:35:20,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 4696 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:35:20,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:35:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-11-20 09:35:20,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:35:20,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:35:20,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477425979] [2022-11-20 09:35:20,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477425979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:35:20,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:35:20,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:35:20,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389330681] [2022-11-20 09:35:20,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:35:20,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:35:20,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:35:20,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:35:20,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:35:20,203 INFO L87 Difference]: Start difference. First operand 59043 states and 86305 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-20 09:35:22,270 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 09:35:24,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:30,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:35:30,481 INFO L93 Difference]: Finished difference Result 157827 states and 240841 transitions. [2022-11-20 09:35:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:35:30,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 343 [2022-11-20 09:35:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:35:30,872 INFO L225 Difference]: With dead ends: 157827 [2022-11-20 09:35:30,872 INFO L226 Difference]: Without dead ends: 98799 [2022-11-20 09:35:31,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 341 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 09:35:31,033 INFO L413 NwaCegarLoop]: 5529 mSDtfsCounter, 2608 mSDsluCounter, 14202 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 664 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2742 SdHoareTripleChecker+Valid, 19731 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:35:31,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2742 Valid, 19731 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 31 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-11-20 09:35:31,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98799 states. [2022-11-20 09:35:35,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98799 to 59091. [2022-11-20 09:35:35,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59091 states, 40741 states have (on average 1.37129672811173) internal successors, (55868), 42610 states have internal predecessors, (55868), 14171 states have call successors, (14171), 4203 states have call predecessors, (14171), 4178 states have return successors, (16314), 13332 states have call predecessors, (16314), 14139 states have call successors, (16314) [2022-11-20 09:35:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59091 states to 59091 states and 86353 transitions. [2022-11-20 09:35:36,159 INFO L78 Accepts]: Start accepts. Automaton has 59091 states and 86353 transitions. Word has length 343 [2022-11-20 09:35:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:35:36,160 INFO L495 AbstractCegarLoop]: Abstraction has 59091 states and 86353 transitions. [2022-11-20 09:35:36,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-20 09:35:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 59091 states and 86353 transitions. [2022-11-20 09:35:36,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-11-20 09:35:36,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:35:36,222 INFO L195 NwaCegarLoop]: trace histogram [16, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:36,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-20 09:35:36,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:35:36,447 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:35:36,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:35:36,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1084746595, now seen corresponding path program 1 times [2022-11-20 09:35:36,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:35:36,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602973572] [2022-11-20 09:35:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:35:36,454 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 09:35:36,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:35:36,455 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -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 09:35:36,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21bdfaf8-ebac-49a9-a942-1082b3826b08/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-20 09:35:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:35:43,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 4755 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:35:43,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:35:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-11-20 09:35:43,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:35:43,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:35:43,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602973572] [2022-11-20 09:35:43,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602973572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:35:43,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:35:43,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:35:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865920489] [2022-11-20 09:35:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:35:43,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:35:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:35:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:35:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:35:43,875 INFO L87 Difference]: Start difference. First operand 59091 states and 86353 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-20 09:35:46,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []