./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--atm--nicstar.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:35:10,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:10,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:10,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:10,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:10,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:10,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:10,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:10,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:10,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:10,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:10,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:10,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:10,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:10,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:10,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:10,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:10,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:10,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:10,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:10,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:10,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:10,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:10,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:10,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:10,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:10,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:10,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:10,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:10,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:10,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:10,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:10,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:10,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:10,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:10,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:10,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:10,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:10,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:10,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:10,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:10,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:35:10,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:10,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:10,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:10,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:10,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:10,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:10,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:10,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:10,921 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:10,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:10,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:35:10,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:10,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:10,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:10,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:10,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:10,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:10,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:10,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:10,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:10,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:10,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:10,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:10,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:10,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:10,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:35:10,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:35:10,928 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:10,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:10,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:10,929 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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2022-11-20 10:35:11,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:11,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:11,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:11,315 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:11,315 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:11,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-20 10:35:14,255 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:14,928 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:14,928 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-20 10:35:14,972 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data/4b2efb389/ddb5629444a1442289a8589ee6a67938/FLAG42a3a24c6 [2022-11-20 10:35:14,991 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data/4b2efb389/ddb5629444a1442289a8589ee6a67938 [2022-11-20 10:35:14,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:14,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:14,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:14,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:15,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:15,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:14" (1/1) ... [2022-11-20 10:35:15,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6d18ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:15, skipping insertion in model container [2022-11-20 10:35:15,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:14" (1/1) ... [2022-11-20 10:35:15,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:15,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:15,830 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:35:15,841 INFO L158 Benchmark]: Toolchain (without parser) took 843.88ms. Allocated memory was 134.2MB in the beginning and 220.2MB in the end (delta: 86.0MB). Free memory was 92.5MB in the beginning and 150.5MB in the end (delta: -57.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-11-20 10:35:15,841 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:35:15,844 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.33ms. Allocated memory was 134.2MB in the beginning and 220.2MB in the end (delta: 86.0MB). Free memory was 92.3MB in the beginning and 150.5MB in the end (delta: -58.1MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-11-20 10:35:15,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.33ms. Allocated memory was 134.2MB in the beginning and 220.2MB in the end (delta: 86.0MB). Free memory was 92.3MB in the beginning and 150.5MB in the end (delta: -58.1MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:35:18,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:18,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:18,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:18,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:18,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:18,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:18,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:18,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:18,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:18,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:18,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:18,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:18,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:18,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:18,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:18,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:18,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:18,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:18,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:18,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:18,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:18,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:18,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:18,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:18,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:18,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:18,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:18,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:18,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:18,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:18,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:18,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:18,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:18,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:18,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:18,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:18,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:18,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:18,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:18,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:18,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:35:18,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:18,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:18,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:18,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:18,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:18,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:18,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:18,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:18,330 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:18,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:18,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:18,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:18,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:18,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:18,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:35:18,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:35:18,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:35:18,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:18,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:18,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:18,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:18,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:18,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:18,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:18,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:18,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:18,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:18,334 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:35:18,335 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:35:18,335 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:18,335 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:18,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:18,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:35:18,336 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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a1e17c33569fa40e536cd8c869720d5a80d6c0d7c343e9efbe1ac963f2ae01b [2022-11-20 10:35:18,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:18,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:18,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:18,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:18,748 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:18,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-20 10:35:22,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:22,699 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:22,700 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-20 10:35:22,750 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data/03668e97c/5a0cd2a115d940d1a63c6a1634e7d70f/FLAG2eb57530c [2022-11-20 10:35:22,768 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/data/03668e97c/5a0cd2a115d940d1a63c6a1634e7d70f [2022-11-20 10:35:22,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:22,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:22,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:22,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:22,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:22,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:22" (1/1) ... [2022-11-20 10:35:22,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e27f5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:22, skipping insertion in model container [2022-11-20 10:35:22,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:22" (1/1) ... [2022-11-20 10:35:22,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:22,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:25,217 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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2022-11-20 10:35:25,269 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-20 10:35:25,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:25,324 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:35:25,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:25,953 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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2022-11-20 10:35:25,965 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-20 10:35:25,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:25,996 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:35:26,533 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_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i[321673,321686] [2022-11-20 10:35:26,537 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-20 10:35:26,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:26,607 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:35:26,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26 WrapperNode [2022-11-20 10:35:26,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:26,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:26,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:35:26,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:35:26,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:26,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:26,864 INFO L138 Inliner]: procedures = 266, calls = 2329, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 5907 [2022-11-20 10:35:26,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:26,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:35:26,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:35:26,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:35:26,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:26,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:26,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:26,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:27,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:27,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:27,227 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:27,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:27,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:35:27,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:35:27,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:35:27,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:35:27,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (1/1) ... [2022-11-20 10:35:27,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:27,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:27,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:27,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:35:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure atm_charge [2022-11-20 10:35:27,386 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_charge [2022-11-20 10:35:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:35:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:35:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-20 10:35:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-20 10:35:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure process_tsq [2022-11-20 10:35:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure process_tsq [2022-11-20 10:35:27,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:35:27,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:35:27,388 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 10:35:27,388 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 10:35:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:35:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:35:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:35:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:35:27,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:35:27,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:35:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-20 10:35:27,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-20 10:35:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure ns_open [2022-11-20 10:35:27,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_open [2022-11-20 10:35:27,390 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 10:35:27,391 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 10:35:27,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 10:35:27,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 10:35:27,392 INFO L130 BoogieDeclarations]: Found specification of procedure ns_read_sram [2022-11-20 10:35:27,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_read_sram [2022-11-20 10:35:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure get_scq [2022-11-20 10:35:27,393 INFO L138 BoogieDeclarations]: Found implementation of procedure get_scq [2022-11-20 10:35:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:35:27,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:35:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_rx_buf [2022-11-20 10:35:27,394 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_rx_buf [2022-11-20 10:35:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 10:35:27,394 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 10:35:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:35:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:35:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __net_timestamp [2022-11-20 10:35:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __net_timestamp [2022-11-20 10:35:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~C_INT [2022-11-20 10:35:27,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~C_INT [2022-11-20 10:35:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:35:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:35:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:35:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:35:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:35:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:35:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:35:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:35:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:35:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:35:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioctl [2022-11-20 10:35:27,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioctl [2022-11-20 10:35:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-20 10:35:27,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-20 10:35:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:35:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:35:27,399 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:35:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure process_rsq [2022-11-20 10:35:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure process_rsq [2022-11-20 10:35:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:35:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 10:35:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 10:35:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 10:35:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:35:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:35:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_alloc_skb [2022-11-20 10:35:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_alloc_skb [2022-11-20 10:35:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:35:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:35:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:35:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:35:27,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:35:27,403 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 10:35:27,403 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 10:35:27,403 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-20 10:35:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-20 10:35:27,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:35:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure dequeue_sm_buf [2022-11-20 10:35:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dequeue_sm_buf [2022-11-20 10:35:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:35:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 10:35:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 10:35:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:35:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:35:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-20 10:35:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-20 10:35:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 10:35:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 10:35:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure push_rxbufs [2022-11-20 10:35:27,406 INFO L138 BoogieDeclarations]: Found implementation of procedure push_rxbufs [2022-11-20 10:35:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_get [2022-11-20 10:35:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_get [2022-11-20 10:35:27,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:35:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:35:27,407 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 10:35:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 10:35:27,408 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-20 10:35:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-20 10:35:27,408 INFO L130 BoogieDeclarations]: Found specification of procedure ns_close [2022-11-20 10:35:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_close [2022-11-20 10:35:27,408 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 10:35:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 10:35:27,409 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 10:35:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 10:35:27,409 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:35:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:35:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_read_eprom [2022-11-20 10:35:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_read_eprom [2022-11-20 10:35:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:35:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:35:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure ns_phy_put [2022-11-20 10:35:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_phy_put [2022-11-20 10:35:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:35:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:35:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 10:35:27,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 10:35:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iov_buf [2022-11-20 10:35:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iov_buf [2022-11-20 10:35:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-20 10:35:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-20 10:35:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:35:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:35:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 10:35:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 10:35:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-20 10:35:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-20 10:35:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:35:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure ns_send [2022-11-20 10:35:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_send [2022-11-20 10:35:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-20 10:35:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-20 10:35:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:35:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:35:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:35:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-20 10:35:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-20 10:35:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-20 10:35:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-20 10:35:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:35:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:35:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-20 10:35:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-20 10:35:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:35:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:35:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:35:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:35:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:35:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 10:35:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 10:35:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-20 10:35:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-20 10:35:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2022-11-20 10:35:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2022-11-20 10:35:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:35:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 10:35:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 10:35:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:35:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:35:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:35:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:35:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:35:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:35:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 10:35:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 10:35:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-20 10:35:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-20 10:35:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:35:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-20 10:35:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-20 10:35:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure free_scq [2022-11-20 10:35:27,431 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scq [2022-11-20 10:35:27,431 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-11-20 10:35:27,431 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-11-20 10:35:27,431 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2022-11-20 10:35:27,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2022-11-20 10:35:27,432 INFO L130 BoogieDeclarations]: Found specification of procedure recycle_iovec_rx_bufs [2022-11-20 10:35:27,432 INFO L138 BoogieDeclarations]: Found implementation of procedure recycle_iovec_rx_bufs [2022-11-20 10:35:27,432 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-20 10:35:27,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-20 10:35:27,432 INFO L130 BoogieDeclarations]: Found specification of procedure nicstar_remove_one [2022-11-20 10:35:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure nicstar_remove_one [2022-11-20 10:35:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-20 10:35:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-20 10:35:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 10:35:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 10:35:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-20 10:35:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-20 10:35:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure ns_init_card_error [2022-11-20 10:35:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_init_card_error [2022-11-20 10:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 10:35:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 10:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 10:35:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 10:35:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:35:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:35:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure ns_write_sram [2022-11-20 10:35:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_write_sram [2022-11-20 10:35:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-20 10:35:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-20 10:35:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:35:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 10:35:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 10:35:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 10:35:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 10:35:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 10:35:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 10:35:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:35:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:35:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-20 10:35:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-20 10:35:28,433 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:35:28,441 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:35:32,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:36:33,374 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:36:33,393 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:36:33,393 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 10:36:33,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:36:33 BoogieIcfgContainer [2022-11-20 10:36:33,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:36:33,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:36:33,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:36:33,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:36:33,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:35:22" (1/3) ... [2022-11-20 10:36:33,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580124fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:36:33, skipping insertion in model container [2022-11-20 10:36:33,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:26" (2/3) ... [2022-11-20 10:36:33,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580124fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:36:33, skipping insertion in model container [2022-11-20 10:36:33,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:36:33" (3/3) ... [2022-11-20 10:36:33,407 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--nicstar.ko-entry_point.cil.out.i [2022-11-20 10:36:33,426 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:36:33,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:36:33,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:36:33,521 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;@1dfaba52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:36:33,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:36:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 2007 states, 1351 states have (on average 1.3434492968171725) internal successors, (1815), 1422 states have internal predecessors, (1815), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) [2022-11-20 10:36:33,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 10:36:33,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:33,557 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:33,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:33,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1874435738, now seen corresponding path program 1 times [2022-11-20 10:36:33,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:36:33,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313746957] [2022-11-20 10:36:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:33,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:33,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:36:33,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:36:33,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:36:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:35,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:36:35,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:35,144 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-20 10:36:35,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:36:35,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:36:35,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313746957] [2022-11-20 10:36:35,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313746957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:35,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:35,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:36:35,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553550179] [2022-11-20 10:36:35,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:35,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:36:35,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:36:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:36:35,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:36:35,207 INFO L87 Difference]: Start difference. First operand has 2007 states, 1351 states have (on average 1.3434492968171725) internal successors, (1815), 1422 states have internal predecessors, (1815), 569 states have call successors, (569), 90 states have call predecessors, (569), 89 states have return successors, (563), 552 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:36:35,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:35,455 INFO L93 Difference]: Finished difference Result 3997 states and 5975 transitions. [2022-11-20 10:36:35,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:36:35,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 149 [2022-11-20 10:36:35,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:35,482 INFO L225 Difference]: With dead ends: 3997 [2022-11-20 10:36:35,483 INFO L226 Difference]: Without dead ends: 1971 [2022-11-20 10:36:35,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 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 10:36:35,508 INFO L413 NwaCegarLoop]: 2919 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, 2919 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 10:36:35,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:36:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2022-11-20 10:36:35,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1971. [2022-11-20 10:36:35,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1323 states have (on average 1.3371126228269086) internal successors, (1769), 1384 states have internal predecessors, (1769), 559 states have call successors, (559), 89 states have call predecessors, (559), 88 states have return successors, (558), 547 states have call predecessors, (558), 558 states have call successors, (558) [2022-11-20 10:36:35,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 2886 transitions. [2022-11-20 10:36:35,713 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 2886 transitions. Word has length 149 [2022-11-20 10:36:35,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:35,714 INFO L495 AbstractCegarLoop]: Abstraction has 1971 states and 2886 transitions. [2022-11-20 10:36:35,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:36:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 2886 transitions. [2022-11-20 10:36:35,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 10:36:35,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:35,733 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:35,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:36:35,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:35,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:35,956 INFO L85 PathProgramCache]: Analyzing trace with hash -170851888, now seen corresponding path program 1 times [2022-11-20 10:36:35,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:36:35,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406779916] [2022-11-20 10:36:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:35,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:35,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:36:35,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:36:35,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:36:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:37,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:36:37,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-11-20 10:36:37,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:36:37,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:36:37,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406779916] [2022-11-20 10:36:37,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406779916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:37,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:37,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:36:37,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499232331] [2022-11-20 10:36:37,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:37,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:36:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:36:37,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:36:37,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:36:37,777 INFO L87 Difference]: Start difference. First operand 1971 states and 2886 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 10:36:38,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:38,455 INFO L93 Difference]: Finished difference Result 3934 states and 5763 transitions. [2022-11-20 10:36:38,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:36:38,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 149 [2022-11-20 10:36:38,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:38,472 INFO L225 Difference]: With dead ends: 3934 [2022-11-20 10:36:38,472 INFO L226 Difference]: Without dead ends: 1972 [2022-11-20 10:36:38,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:36:38,485 INFO L413 NwaCegarLoop]: 2879 mSDtfsCounter, 6 mSDsluCounter, 11498 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14377 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:38,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14377 Invalid, 52 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:36:38,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-11-20 10:36:38,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1972. [2022-11-20 10:36:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1324 states have (on average 1.336858006042296) internal successors, (1770), 1385 states have internal predecessors, (1770), 559 states have call successors, (559), 89 states have call predecessors, (559), 88 states have return successors, (558), 547 states have call predecessors, (558), 558 states have call successors, (558) [2022-11-20 10:36:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2887 transitions. [2022-11-20 10:36:38,591 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2887 transitions. Word has length 149 [2022-11-20 10:36:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:38,596 INFO L495 AbstractCegarLoop]: Abstraction has 1972 states and 2887 transitions. [2022-11-20 10:36:38,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 10:36:38,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2887 transitions. [2022-11-20 10:36:38,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-20 10:36:38,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:38,601 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:38,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 10:36:38,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:38,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:38,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1182298392, now seen corresponding path program 1 times [2022-11-20 10:36:38,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:36:38,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873276861] [2022-11-20 10:36:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:38,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:38,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:36:38,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:36:38,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:36:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:40,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:36:40,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:40,672 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-11-20 10:36:40,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:36:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-11-20 10:36:41,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:36:41,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873276861] [2022-11-20 10:36:41,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873276861] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:36:41,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:36:41,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 10:36:41,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979494592] [2022-11-20 10:36:41,923 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:36:41,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:36:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:36:41,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:36:41,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:36:41,925 INFO L87 Difference]: Start difference. First operand 1972 states and 2887 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 10:36:43,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:43,153 INFO L93 Difference]: Finished difference Result 3946 states and 5779 transitions. [2022-11-20 10:36:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:36:43,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2022-11-20 10:36:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:43,168 INFO L225 Difference]: With dead ends: 3946 [2022-11-20 10:36:43,168 INFO L226 Difference]: Without dead ends: 1988 [2022-11-20 10:36:43,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:36:43,182 INFO L413 NwaCegarLoop]: 2881 mSDtfsCounter, 14 mSDsluCounter, 14374 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17255 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:43,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 17255 Invalid, 110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:36:43,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2022-11-20 10:36:43,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1988. [2022-11-20 10:36:43,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1335 states have (on average 1.3348314606741574) internal successors, (1782), 1396 states have internal predecessors, (1782), 561 states have call successors, (561), 92 states have call predecessors, (561), 91 states have return successors, (560), 549 states have call predecessors, (560), 560 states have call successors, (560) [2022-11-20 10:36:43,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2903 transitions. [2022-11-20 10:36:43,263 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2903 transitions. Word has length 153 [2022-11-20 10:36:43,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:43,264 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 2903 transitions. [2022-11-20 10:36:43,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 4 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-20 10:36:43,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2903 transitions. [2022-11-20 10:36:43,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 10:36:43,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:43,268 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:43,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:36:43,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:43,493 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:43,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:43,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1704434568, now seen corresponding path program 2 times [2022-11-20 10:36:43,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:36:43,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221753000] [2022-11-20 10:36:43,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:36:43,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:43,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:36:43,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:36:43,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:36:44,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:36:44,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:36:44,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:36:44,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-20 10:36:44,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:36:44,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:36:44,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221753000] [2022-11-20 10:36:44,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221753000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:44,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:44,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:36:44,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681784590] [2022-11-20 10:36:44,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:44,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:36:44,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:36:44,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:36:44,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:36:44,706 INFO L87 Difference]: Start difference. First operand 1988 states and 2903 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 10:36:45,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:45,093 INFO L93 Difference]: Finished difference Result 5416 states and 7896 transitions. [2022-11-20 10:36:45,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:36:45,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 156 [2022-11-20 10:36:45,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:45,123 INFO L225 Difference]: With dead ends: 5416 [2022-11-20 10:36:45,123 INFO L226 Difference]: Without dead ends: 3465 [2022-11-20 10:36:45,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:36:45,140 INFO L413 NwaCegarLoop]: 3447 mSDtfsCounter, 2160 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:45,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 6286 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:36:45,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2022-11-20 10:36:45,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3461. [2022-11-20 10:36:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3461 states, 2332 states have (on average 1.3396226415094339) internal successors, (3124), 2442 states have internal predecessors, (3124), 956 states have call successors, (956), 173 states have call predecessors, (956), 172 states have return successors, (955), 933 states have call predecessors, (955), 955 states have call successors, (955) [2022-11-20 10:36:45,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3461 states to 3461 states and 5035 transitions. [2022-11-20 10:36:45,339 INFO L78 Accepts]: Start accepts. Automaton has 3461 states and 5035 transitions. Word has length 156 [2022-11-20 10:36:45,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:45,340 INFO L495 AbstractCegarLoop]: Abstraction has 3461 states and 5035 transitions. [2022-11-20 10:36:45,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 10:36:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3461 states and 5035 transitions. [2022-11-20 10:36:45,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-20 10:36:45,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:45,344 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:45,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:36:45,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:45,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:45,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:45,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1299390254, now seen corresponding path program 1 times [2022-11-20 10:36:45,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:36:45,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797963362] [2022-11-20 10:36:45,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:45,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:45,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:36:45,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:36:45,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:36:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:46,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:36:46,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:47,389 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 10:36:47,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:36:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-20 10:36:49,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:36:49,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797963362] [2022-11-20 10:36:49,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797963362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:36:49,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:36:49,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 10:36:49,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206104507] [2022-11-20 10:36:49,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:36:49,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:36:49,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:36:49,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:36:49,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:36:49,084 INFO L87 Difference]: Start difference. First operand 3461 states and 5035 transitions. Second operand has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 10:36:50,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:50,830 INFO L93 Difference]: Finished difference Result 6905 states and 10051 transitions. [2022-11-20 10:36:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:36:50,832 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 163 [2022-11-20 10:36:50,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:50,856 INFO L225 Difference]: With dead ends: 6905 [2022-11-20 10:36:50,856 INFO L226 Difference]: Without dead ends: 3463 [2022-11-20 10:36:50,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:36:50,878 INFO L413 NwaCegarLoop]: 2882 mSDtfsCounter, 17 mSDsluCounter, 20134 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 23016 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:50,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 23016 Invalid, 158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 10:36:50,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2022-11-20 10:36:51,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3463. [2022-11-20 10:36:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 2334 states have (on average 1.339331619537275) internal successors, (3126), 2444 states have internal predecessors, (3126), 956 states have call successors, (956), 173 states have call predecessors, (956), 172 states have return successors, (955), 933 states have call predecessors, (955), 955 states have call successors, (955) [2022-11-20 10:36:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 5037 transitions. [2022-11-20 10:36:51,073 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 5037 transitions. Word has length 163 [2022-11-20 10:36:51,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:51,074 INFO L495 AbstractCegarLoop]: Abstraction has 3463 states and 5037 transitions. [2022-11-20 10:36:51,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-20 10:36:51,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 5037 transitions. [2022-11-20 10:36:51,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 10:36:51,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:51,080 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:51,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:36:51,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:51,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:51,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:51,305 INFO L85 PathProgramCache]: Analyzing trace with hash 780740450, now seen corresponding path program 2 times [2022-11-20 10:36:51,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:36:51,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642344316] [2022-11-20 10:36:51,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:36:51,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:51,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:36:51,307 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:36:51,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:36:52,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:36:52,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:36:52,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:36:52,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:52,435 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-11-20 10:36:52,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:36:52,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:36:52,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642344316] [2022-11-20 10:36:52,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642344316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:52,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:52,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:36:52,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329578208] [2022-11-20 10:36:52,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:52,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:36:52,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:36:52,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:36:52,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:36:52,438 INFO L87 Difference]: Start difference. First operand 3463 states and 5037 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:36:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:36:53,100 INFO L93 Difference]: Finished difference Result 9443 states and 13725 transitions. [2022-11-20 10:36:53,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:36:53,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 166 [2022-11-20 10:36:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:36:53,147 INFO L225 Difference]: With dead ends: 9443 [2022-11-20 10:36:53,147 INFO L226 Difference]: Without dead ends: 6038 [2022-11-20 10:36:53,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:36:53,174 INFO L413 NwaCegarLoop]: 3329 mSDtfsCounter, 2325 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 6080 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:36:53,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2325 Valid, 6080 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:36:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2022-11-20 10:36:53,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 6031. [2022-11-20 10:36:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6031 states, 4051 states have (on average 1.3297951123179461) internal successors, (5387), 4245 states have internal predecessors, (5387), 1675 states have call successors, (1675), 305 states have call predecessors, (1675), 304 states have return successors, (1685), 1628 states have call predecessors, (1685), 1674 states have call successors, (1685) [2022-11-20 10:36:53,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6031 states to 6031 states and 8747 transitions. [2022-11-20 10:36:53,572 INFO L78 Accepts]: Start accepts. Automaton has 6031 states and 8747 transitions. Word has length 166 [2022-11-20 10:36:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:36:53,572 INFO L495 AbstractCegarLoop]: Abstraction has 6031 states and 8747 transitions. [2022-11-20 10:36:53,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 10:36:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6031 states and 8747 transitions. [2022-11-20 10:36:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 10:36:53,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:36:53,576 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:36:53,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:36:53,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:53,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:36:53,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:53,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2029815189, now seen corresponding path program 1 times [2022-11-20 10:36:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:36:53,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096150093] [2022-11-20 10:36:53,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:53,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:53,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:36:53,799 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:36:53,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:36:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:55,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:36:55,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:36:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 64 proven. 6 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-11-20 10:36:55,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:36:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-20 10:36:57,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:36:57,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096150093] [2022-11-20 10:36:57,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096150093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:36:57,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:36:57,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 10:36:57,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662447905] [2022-11-20 10:36:57,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:36:57,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:36:57,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:36:57,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:36:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:36:57,711 INFO L87 Difference]: Start difference. First operand 6031 states and 8747 transitions. Second operand has 15 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-20 10:37:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:00,020 INFO L93 Difference]: Finished difference Result 12048 states and 17479 transitions. [2022-11-20 10:37:00,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 10:37:00,021 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 184 [2022-11-20 10:37:00,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:00,072 INFO L225 Difference]: With dead ends: 12048 [2022-11-20 10:37:00,072 INFO L226 Difference]: Without dead ends: 6034 [2022-11-20 10:37:00,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:37:00,101 INFO L413 NwaCegarLoop]: 2882 mSDtfsCounter, 17 mSDsluCounter, 28762 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 31644 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:00,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 31644 Invalid, 208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 10:37:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2022-11-20 10:37:00,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 6034. [2022-11-20 10:37:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6034 states, 4054 states have (on average 1.329551060680809) internal successors, (5390), 4248 states have internal predecessors, (5390), 1675 states have call successors, (1675), 305 states have call predecessors, (1675), 304 states have return successors, (1685), 1628 states have call predecessors, (1685), 1674 states have call successors, (1685) [2022-11-20 10:37:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6034 states to 6034 states and 8750 transitions. [2022-11-20 10:37:00,480 INFO L78 Accepts]: Start accepts. Automaton has 6034 states and 8750 transitions. Word has length 184 [2022-11-20 10:37:00,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:00,481 INFO L495 AbstractCegarLoop]: Abstraction has 6034 states and 8750 transitions. [2022-11-20 10:37:00,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (28), 2 states have call predecessors, (28), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-20 10:37:00,481 INFO L276 IsEmpty]: Start isEmpty. Operand 6034 states and 8750 transitions. [2022-11-20 10:37:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 10:37:00,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:00,485 INFO L195 NwaCegarLoop]: trace histogram [13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:00,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:00,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:00,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:00,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:00,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1832591877, now seen corresponding path program 2 times [2022-11-20 10:37:00,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:00,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877632625] [2022-11-20 10:37:00,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:37:00,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:00,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:00,712 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:00,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:37:01,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:37:01,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:01,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:37:01,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:37:03,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:03,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:03,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877632625] [2022-11-20 10:37:03,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877632625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:03,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:03,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:37:03,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135118825] [2022-11-20 10:37:03,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:03,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:37:03,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:03,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:37:03,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:37:03,615 INFO L87 Difference]: Start difference. First operand 6034 states and 8750 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:37:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:04,670 INFO L93 Difference]: Finished difference Result 18026 states and 26294 transitions. [2022-11-20 10:37:04,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:37:04,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 187 [2022-11-20 10:37:04,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:04,744 INFO L225 Difference]: With dead ends: 18026 [2022-11-20 10:37:04,744 INFO L226 Difference]: Without dead ends: 12051 [2022-11-20 10:37:04,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:37:04,774 INFO L413 NwaCegarLoop]: 4031 mSDtfsCounter, 2856 mSDsluCounter, 10895 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 14926 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:04,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2856 Valid, 14926 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:37:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12051 states. [2022-11-20 10:37:05,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12051 to 12036. [2022-11-20 10:37:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12036 states, 8091 states have (on average 1.3291311333580522) internal successors, (10754), 8483 states have internal predecessors, (10754), 3335 states have call successors, (3335), 606 states have call predecessors, (3335), 609 states have return successors, (3428), 3242 states have call predecessors, (3428), 3334 states have call successors, (3428) [2022-11-20 10:37:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12036 states to 12036 states and 17517 transitions. [2022-11-20 10:37:05,575 INFO L78 Accepts]: Start accepts. Automaton has 12036 states and 17517 transitions. Word has length 187 [2022-11-20 10:37:05,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:05,577 INFO L495 AbstractCegarLoop]: Abstraction has 12036 states and 17517 transitions. [2022-11-20 10:37:05,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:37:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 12036 states and 17517 transitions. [2022-11-20 10:37:05,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-20 10:37:05,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:05,581 INFO L195 NwaCegarLoop]: trace histogram [13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:05,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:05,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:05,794 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:05,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:05,795 INFO L85 PathProgramCache]: Analyzing trace with hash -936315795, now seen corresponding path program 1 times [2022-11-20 10:37:05,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:05,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12492802] [2022-11-20 10:37:05,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:05,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:05,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:05,797 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:05,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:37:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:07,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:37:07,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 131 proven. 10 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-11-20 10:37:08,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 47 proven. 41 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-11-20 10:37:10,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:10,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12492802] [2022-11-20 10:37:10,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12492802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:10,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:37:10,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-20 10:37:10,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014832322] [2022-11-20 10:37:10,668 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:10,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 10:37:10,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:10,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 10:37:10,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:37:10,670 INFO L87 Difference]: Start difference. First operand 12036 states and 17517 transitions. Second operand has 17 states, 15 states have (on average 6.4) internal successors, (96), 17 states have internal predecessors, (96), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:37:13,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:13,189 INFO L93 Difference]: Finished difference Result 24070 states and 35035 transitions. [2022-11-20 10:37:13,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:37:13,191 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.4) internal successors, (96), 17 states have internal predecessors, (96), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 186 [2022-11-20 10:37:13,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:13,267 INFO L225 Difference]: With dead ends: 24070 [2022-11-20 10:37:13,267 INFO L226 Difference]: Without dead ends: 12049 [2022-11-20 10:37:13,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:37:13,328 INFO L413 NwaCegarLoop]: 2880 mSDtfsCounter, 39 mSDsluCounter, 20141 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 23021 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:13,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 23021 Invalid, 176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 10:37:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12049 states. [2022-11-20 10:37:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12049 to 12049. [2022-11-20 10:37:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12049 states, 8103 states have (on average 1.3288905343699864) internal successors, (10768), 8495 states have internal predecessors, (10768), 3335 states have call successors, (3335), 607 states have call predecessors, (3335), 610 states have return successors, (3428), 3242 states have call predecessors, (3428), 3334 states have call successors, (3428) [2022-11-20 10:37:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12049 states to 12049 states and 17531 transitions. [2022-11-20 10:37:14,264 INFO L78 Accepts]: Start accepts. Automaton has 12049 states and 17531 transitions. Word has length 186 [2022-11-20 10:37:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:14,265 INFO L495 AbstractCegarLoop]: Abstraction has 12049 states and 17531 transitions. [2022-11-20 10:37:14,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.4) internal successors, (96), 17 states have internal predecessors, (96), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:37:14,265 INFO L276 IsEmpty]: Start isEmpty. Operand 12049 states and 17531 transitions. [2022-11-20 10:37:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-20 10:37:14,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:14,269 INFO L195 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:14,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:14,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:14,491 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:14,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:14,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1705574901, now seen corresponding path program 2 times [2022-11-20 10:37:14,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:14,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920391294] [2022-11-20 10:37:14,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:37:14,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:14,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:14,495 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:14,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:37:16,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:37:16,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:16,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:37:16,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-11-20 10:37:17,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:17,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:17,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920391294] [2022-11-20 10:37:17,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920391294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:17,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:17,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:37:17,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171638904] [2022-11-20 10:37:17,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:17,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:37:17,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:37:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:37:17,877 INFO L87 Difference]: Start difference. First operand 12049 states and 17531 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:37:19,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:19,524 INFO L93 Difference]: Finished difference Result 36069 states and 52735 transitions. [2022-11-20 10:37:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:37:19,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 188 [2022-11-20 10:37:19,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:19,651 INFO L225 Difference]: With dead ends: 36069 [2022-11-20 10:37:19,652 INFO L226 Difference]: Without dead ends: 24088 [2022-11-20 10:37:19,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:37:19,722 INFO L413 NwaCegarLoop]: 4032 mSDtfsCounter, 2855 mSDsluCounter, 10897 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2855 SdHoareTripleChecker+Valid, 14929 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:19,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2855 Valid, 14929 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:37:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24088 states. [2022-11-20 10:37:21,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24088 to 24061. [2022-11-20 10:37:21,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24061 states, 16185 states have (on average 1.3282051282051281) internal successors, (21497), 16969 states have internal predecessors, (21497), 6655 states have call successors, (6655), 1213 states have call predecessors, (6655), 1220 states have return successors, (6946), 6470 states have call predecessors, (6946), 6654 states have call successors, (6946) [2022-11-20 10:37:21,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24061 states to 24061 states and 35098 transitions. [2022-11-20 10:37:21,679 INFO L78 Accepts]: Start accepts. Automaton has 24061 states and 35098 transitions. Word has length 188 [2022-11-20 10:37:21,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:21,680 INFO L495 AbstractCegarLoop]: Abstraction has 24061 states and 35098 transitions. [2022-11-20 10:37:21,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:37:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 24061 states and 35098 transitions. [2022-11-20 10:37:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-20 10:37:21,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:21,685 INFO L195 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:21,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:21,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:21,910 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:21,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:21,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2128152230, now seen corresponding path program 1 times [2022-11-20 10:37:21,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:21,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571083192] [2022-11-20 10:37:21,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:21,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:21,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:21,913 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:21,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 10:37:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:23,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:37:23,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 156 proven. 15 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-11-20 10:37:24,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 54 proven. 57 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-20 10:37:27,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:27,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571083192] [2022-11-20 10:37:27,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571083192] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:27,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:37:27,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-20 10:37:27,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626392774] [2022-11-20 10:37:27,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:27,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:37:27,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:27,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:37:27,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:37:27,535 INFO L87 Difference]: Start difference. First operand 24061 states and 35098 transitions. Second operand has 19 states, 17 states have (on average 5.705882352941177) internal successors, (97), 19 states have internal predecessors, (97), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:37:30,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:30,923 INFO L93 Difference]: Finished difference Result 48105 states and 70180 transitions. [2022-11-20 10:37:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 10:37:30,924 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.705882352941177) internal successors, (97), 19 states have internal predecessors, (97), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 187 [2022-11-20 10:37:30,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:31,042 INFO L225 Difference]: With dead ends: 48105 [2022-11-20 10:37:31,042 INFO L226 Difference]: Without dead ends: 24070 [2022-11-20 10:37:31,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-20 10:37:31,301 INFO L413 NwaCegarLoop]: 2880 mSDtfsCounter, 51 mSDsluCounter, 34512 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 37392 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:31,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 37392 Invalid, 267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 10:37:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24070 states. [2022-11-20 10:37:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24070 to 24070. [2022-11-20 10:37:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24070 states, 16194 states have (on average 1.3280227244658516) internal successors, (21506), 16978 states have internal predecessors, (21506), 6655 states have call successors, (6655), 1213 states have call predecessors, (6655), 1220 states have return successors, (6946), 6470 states have call predecessors, (6946), 6654 states have call successors, (6946) [2022-11-20 10:37:32,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24070 states to 24070 states and 35107 transitions. [2022-11-20 10:37:32,898 INFO L78 Accepts]: Start accepts. Automaton has 24070 states and 35107 transitions. Word has length 187 [2022-11-20 10:37:32,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:32,899 INFO L495 AbstractCegarLoop]: Abstraction has 24070 states and 35107 transitions. [2022-11-20 10:37:32,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.705882352941177) internal successors, (97), 19 states have internal predecessors, (97), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:37:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 24070 states and 35107 transitions. [2022-11-20 10:37:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-20 10:37:32,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:32,903 INFO L195 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:32,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -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 10:37:33,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:33,128 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:33,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:33,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1107356702, now seen corresponding path program 2 times [2022-11-20 10:37:33,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:33,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670696984] [2022-11-20 10:37:33,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:37:33,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:33,132 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:33,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 10:37:34,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:37:34,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:37:34,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:37:34,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:36,319 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2022-11-20 10:37:36,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:36,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:36,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670696984] [2022-11-20 10:37:36,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670696984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:36,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:36,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:37:36,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930997203] [2022-11-20 10:37:36,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:36,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:37:36,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:36,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:37:36,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:37:36,322 INFO L87 Difference]: Start difference. First operand 24070 states and 35107 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:37:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:38,627 INFO L93 Difference]: Finished difference Result 72178 states and 105725 transitions. [2022-11-20 10:37:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:37:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 189 [2022-11-20 10:37:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:38,878 INFO L225 Difference]: With dead ends: 72178 [2022-11-20 10:37:38,878 INFO L226 Difference]: Without dead ends: 48177 [2022-11-20 10:37:39,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:37:39,020 INFO L413 NwaCegarLoop]: 4429 mSDtfsCounter, 2856 mSDsluCounter, 11693 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2856 SdHoareTripleChecker+Valid, 16122 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:39,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2856 Valid, 16122 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:37:39,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48177 states. [2022-11-20 10:37:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48177 to 47966. [2022-11-20 10:37:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47966 states, 32254 states have (on average 1.3283933775655732) internal successors, (42846), 33870 states have internal predecessors, (42846), 13279 states have call successors, (13279), 2417 states have call predecessors, (13279), 2432 states have return successors, (14054), 12862 states have call predecessors, (14054), 13278 states have call successors, (14054) [2022-11-20 10:37:42,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47966 states to 47966 states and 70179 transitions. [2022-11-20 10:37:42,276 INFO L78 Accepts]: Start accepts. Automaton has 47966 states and 70179 transitions. Word has length 189 [2022-11-20 10:37:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:42,277 INFO L495 AbstractCegarLoop]: Abstraction has 47966 states and 70179 transitions. [2022-11-20 10:37:42,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 10:37:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 47966 states and 70179 transitions. [2022-11-20 10:37:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-20 10:37:42,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:42,281 INFO L195 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:42,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:42,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:42,503 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:42,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1991615536, now seen corresponding path program 1 times [2022-11-20 10:37:42,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:42,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054124359] [2022-11-20 10:37:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:42,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:42,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:42,507 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:42,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e8f24e-e0bb-4fcf-8e49-2d4e25936e15/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 10:37:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:44,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:37:44,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 183 proven. 21 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-11-20 10:37:45,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:37:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 61 proven. 76 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-20 10:37:48,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:48,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054124359] [2022-11-20 10:37:48,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054124359] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:37:48,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:37:48,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-20 10:37:48,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377728068] [2022-11-20 10:37:48,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:37:48,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 10:37:48,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:48,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 10:37:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:37:48,864 INFO L87 Difference]: Start difference. First operand 47966 states and 70179 transitions. Second operand has 21 states, 19 states have (on average 5.368421052631579) internal successors, (102), 21 states have internal predecessors, (102), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-20 10:37:54,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:54,200 INFO L93 Difference]: Finished difference Result 95939 states and 140374 transitions. [2022-11-20 10:37:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 10:37:54,201 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.368421052631579) internal successors, (102), 21 states have internal predecessors, (102), 4 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 192 [2022-11-20 10:37:54,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:54,536 INFO L225 Difference]: With dead ends: 95939 [2022-11-20 10:37:54,536 INFO L226 Difference]: Without dead ends: 47983 [2022-11-20 10:37:54,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-11-20 10:37:54,828 INFO L413 NwaCegarLoop]: 2880 mSDtfsCounter, 42 mSDsluCounter, 37394 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 40274 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:37:54,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 40274 Invalid, 296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 10:37:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47983 states.