./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--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:44:26,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:44:26,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:44:26,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:44:26,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:44:26,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:44:26,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:44:26,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:44:26,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:44:26,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:44:26,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:44:26,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:44:26,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:44:26,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:44:26,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:44:26,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:44:26,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:44:26,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:44:26,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:44:26,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:44:26,716 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:44:26,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:44:26,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:44:26,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:44:26,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:44:26,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:44:26,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:44:26,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:44:26,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:44:26,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:44:26,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:44:26,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:44:26,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:44:26,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:44:26,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:44:26,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:44:26,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:44:26,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:44:26,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:44:26,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:44:26,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:44:26,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:44:26,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:44:26,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:44:26,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:44:26,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:44:26,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:44:26,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:44:26,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:44:26,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:44:26,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:44:26,756 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:44:26,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:44:26,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:44:26,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:44:26,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:44:26,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:44:26,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:44:26,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:44:26,758 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:44:26,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:44:26,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:44:26,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:44:26,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:44:26,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:44:26,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:44:26,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:44:26,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:44:26,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:44:26,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:44:26,760 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:44:26,760 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:44:26,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:44:26,761 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-07-14 01:44:26,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:44:26,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:44:26,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:44:26,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:44:26,933 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:44:26,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-07-14 01:44:26,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45bdd263c/8383d86707944d1081586ee86e70aa51/FLAGf9177d47f [2022-07-14 01:44:27,707 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:44:27,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-07-14 01:44:27,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45bdd263c/8383d86707944d1081586ee86e70aa51/FLAGf9177d47f [2022-07-14 01:44:28,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45bdd263c/8383d86707944d1081586ee86e70aa51 [2022-07-14 01:44:28,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:44:28,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:44:28,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:44:28,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:44:28,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:44:28,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:44:28" (1/1) ... [2022-07-14 01:44:28,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1f4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:28, skipping insertion in model container [2022-07-14 01:44:28,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:44:28" (1/1) ... [2022-07-14 01:44:28,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:44:28,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:44:30,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-07-14 01:44:30,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:44:30,779 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:44:31,065 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: desc = (unsigned int )*((bcsp___0->rx_skb)->data + 1UL) & 15U [10038] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) 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:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) 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) [2022-07-14 01:44:31,072 INFO L158 Benchmark]: Toolchain (without parser) took 3062.33ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 76.0MB in the beginning and 87.0MB in the end (delta: -11.0MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. [2022-07-14 01:44:31,073 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 01:44:31,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3060.79ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 75.8MB in the beginning and 87.0MB in the end (delta: -11.2MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. [2022-07-14 01:44:31,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 90.2MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3060.79ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 75.8MB in the beginning and 87.0MB in the end (delta: -11.2MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: desc = (unsigned int )*((bcsp___0->rx_skb)->data + 1UL) & 15U [10038] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: desc = (unsigned int )*((bcsp___0->rx_skb)->data + 1UL) & 15U [10038]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) 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/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:44:32,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:44:32,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:44:32,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:44:32,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:44:32,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:44:32,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:44:32,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:44:32,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:44:32,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:44:32,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:44:32,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:44:32,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:44:32,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:44:32,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:44:32,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:44:32,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:44:32,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:44:32,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:44:32,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:44:32,557 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:44:32,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:44:32,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:44:32,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:44:32,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:44:32,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:44:32,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:44:32,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:44:32,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:44:32,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:44:32,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:44:32,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:44:32,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:44:32,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:44:32,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:44:32,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:44:32,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:44:32,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:44:32,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:44:32,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:44:32,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:44:32,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:44:32,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 01:44:32,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:44:32,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:44:32,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:44:32,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:44:32,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:44:32,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:44:32,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:44:32,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:44:32,616 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:44:32,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:44:32,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:44:32,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:44:32,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:44:32,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:44:32,617 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 01:44:32,617 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 01:44:32,618 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 01:44:32,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:44:32,618 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:44:32,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:44:32,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:44:32,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:44:32,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:44:32,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:44:32,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:44:32,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:44:32,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:44:32,619 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 01:44:32,620 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 01:44:32,620 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:44:32,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:44:32,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:44:32,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 01:44:32,620 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-07-14 01:44:32,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:44:32,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:44:32,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:44:32,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:44:32,899 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:44:32,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-07-14 01:44:32,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8658c132/d278adcd8f51471abd35691abfe964a6/FLAGb585f6c9f [2022-07-14 01:44:33,568 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:44:33,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-07-14 01:44:33,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8658c132/d278adcd8f51471abd35691abfe964a6/FLAGb585f6c9f [2022-07-14 01:44:33,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8658c132/d278adcd8f51471abd35691abfe964a6 [2022-07-14 01:44:33,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:44:33,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:44:33,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:44:33,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:44:33,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:44:33,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:44:33" (1/1) ... [2022-07-14 01:44:33,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5b189c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:33, skipping insertion in model container [2022-07-14 01:44:33,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:44:33" (1/1) ... [2022-07-14 01:44:33,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:44:33,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:44:36,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-07-14 01:44:36,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:44:36,564 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 01:44:36,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:44:36,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-07-14 01:44:36,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:44:36,980 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:44:37,483 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-07-14 01:44:37,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:44:37,670 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:44:37,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37 WrapperNode [2022-07-14 01:44:37,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:44:37,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:44:37,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:44:37,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:44:37,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:37,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:37,911 INFO L137 Inliner]: procedures = 504, calls = 4666, calls flagged for inlining = 135, calls inlined = 106, statements flattened = 6188 [2022-07-14 01:44:37,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:44:37,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:44:37,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:44:37,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:44:37,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:37,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:37,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:37,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:38,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:38,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:38,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:38,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:44:38,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:44:38,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:44:38,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:44:38,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (1/1) ... [2022-07-14 01:44:38,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:44:38,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:44:38,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 01:44:38,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 01:44:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-14 01:44:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-14 01:44:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2022-07-14 01:44:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2022-07-14 01:44:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:44:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:44:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-14 01:44:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-14 01:44:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2022-07-14 01:44:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2022-07-14 01:44:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 01:44:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 01:44:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:44:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:44:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2022-07-14 01:44:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2022-07-14 01:44:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2022-07-14 01:44:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2022-07-14 01:44:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-14 01:44:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-14 01:44:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 01:44:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 01:44:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 01:44:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 01:44:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2022-07-14 01:44:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2022-07-14 01:44:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2022-07-14 01:44:38,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2022-07-14 01:44:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-14 01:44:38,212 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-14 01:44:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 01:44:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2022-07-14 01:44:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2022-07-14 01:44:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 01:44:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 01:44:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 01:44:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 01:44:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2022-07-14 01:44:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2022-07-14 01:44:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-07-14 01:44:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-07-14 01:44:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:44:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 01:44:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 01:44:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 01:44:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2022-07-14 01:44:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2022-07-14 01:44:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-14 01:44:38,215 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-14 01:44:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2022-07-14 01:44:38,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2022-07-14 01:44:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2022-07-14 01:44:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2022-07-14 01:44:38,216 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2022-07-14 01:44:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 01:44:38,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 01:44:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2022-07-14 01:44:38,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2022-07-14 01:44:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-07-14 01:44:38,217 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-07-14 01:44:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2022-07-14 01:44:38,217 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2022-07-14 01:44:38,217 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2022-07-14 01:44:38,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2022-07-14 01:44:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 01:44:38,218 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 01:44:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2022-07-14 01:44:38,218 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2022-07-14 01:44:38,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 01:44:38,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 01:44:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2022-07-14 01:44:38,219 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2022-07-14 01:44:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2022-07-14 01:44:38,219 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2022-07-14 01:44:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2022-07-14 01:44:38,219 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-14 01:44:38,220 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-14 01:44:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2022-07-14 01:44:38,220 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2022-07-14 01:44:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 01:44:38,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 01:44:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2022-07-14 01:44:38,220 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2022-07-14 01:44:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2022-07-14 01:44:38,221 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2022-07-14 01:44:38,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:44:38,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:44:38,221 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2022-07-14 01:44:38,221 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2022-07-14 01:44:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:44:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-07-14 01:44:38,222 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-07-14 01:44:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-07-14 01:44:38,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-07-14 01:44:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:44:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2022-07-14 01:44:38,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2022-07-14 01:44:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 01:44:38,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 01:44:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:44:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 01:44:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 01:44:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:44:38,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:44:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 01:44:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-07-14 01:44:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-07-14 01:44:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2022-07-14 01:44:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2022-07-14 01:44:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2022-07-14 01:44:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2022-07-14 01:44:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2022-07-14 01:44:38,227 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2022-07-14 01:44:38,228 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2022-07-14 01:44:38,228 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2022-07-14 01:44:38,228 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-14 01:44:38,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-14 01:44:38,229 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 01:44:38,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 01:44:38,229 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2022-07-14 01:44:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2022-07-14 01:44:38,233 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2022-07-14 01:44:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2022-07-14 01:44:38,233 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2022-07-14 01:44:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2022-07-14 01:44:38,233 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2022-07-14 01:44:38,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2022-07-14 01:44:38,233 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2022-07-14 01:44:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2022-07-14 01:44:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-14 01:44:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-14 01:44:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 01:44:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 01:44:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2022-07-14 01:44:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2022-07-14 01:44:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 01:44:38,234 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 01:44:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2022-07-14 01:44:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2022-07-14 01:44:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 01:44:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 01:44:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 01:44:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:44:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:44:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 01:44:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 01:44:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2022-07-14 01:44:38,235 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2022-07-14 01:44:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2022-07-14 01:44:38,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-14 01:44:38,236 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 01:44:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:44:38,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:44:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2022-07-14 01:44:38,237 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2022-07-14 01:44:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-14 01:44:38,237 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-14 01:44:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-14 01:44:38,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-14 01:44:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2022-07-14 01:44:38,237 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2022-07-14 01:44:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-07-14 01:44:38,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-07-14 01:44:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-07-14 01:44:38,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-07-14 01:44:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2022-07-14 01:44:38,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2022-07-14 01:44:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2022-07-14 01:44:38,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2022-07-14 01:44:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:44:38,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:44:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-07-14 01:44:38,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-07-14 01:44:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2022-07-14 01:44:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2022-07-14 01:44:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:44:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:44:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2022-07-14 01:44:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2022-07-14 01:44:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-07-14 01:44:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-07-14 01:44:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:44:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:44:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2022-07-14 01:44:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2022-07-14 01:44:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-14 01:44:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-14 01:44:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-14 01:44:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-14 01:44:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2022-07-14 01:44:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2022-07-14 01:44:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:44:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2022-07-14 01:44:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2022-07-14 01:44:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2022-07-14 01:44:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2022-07-14 01:44:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2022-07-14 01:44:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2022-07-14 01:44:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 01:44:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 01:44:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:44:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-14 01:44:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-14 01:44:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 01:44:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2022-07-14 01:44:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2022-07-14 01:44:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2022-07-14 01:44:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-07-14 01:44:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-07-14 01:44:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2022-07-14 01:44:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2022-07-14 01:44:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-14 01:44:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-14 01:44:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2022-07-14 01:44:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2022-07-14 01:44:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2022-07-14 01:44:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2022-07-14 01:44:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 01:44:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 01:44:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-14 01:44:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-14 01:44:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-14 01:44:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-14 01:44:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2022-07-14 01:44:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2022-07-14 01:44:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2022-07-14 01:44:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2022-07-14 01:44:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2022-07-14 01:44:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2022-07-14 01:44:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2022-07-14 01:44:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2022-07-14 01:44:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 01:44:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 01:44:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2022-07-14 01:44:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2022-07-14 01:44:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2022-07-14 01:44:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2022-07-14 01:44:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2022-07-14 01:44:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2022-07-14 01:44:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2022-07-14 01:44:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2022-07-14 01:44:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2022-07-14 01:44:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2022-07-14 01:44:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 01:44:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 01:44:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2022-07-14 01:44:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2022-07-14 01:44:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2022-07-14 01:44:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2022-07-14 01:44:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-14 01:44:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-14 01:44:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2022-07-14 01:44:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2022-07-14 01:44:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 01:44:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 01:44:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 01:44:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 01:44:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2022-07-14 01:44:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2022-07-14 01:44:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 01:44:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 01:44:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-07-14 01:44:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-07-14 01:44:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-14 01:44:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:44:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2022-07-14 01:44:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2022-07-14 01:44:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2022-07-14 01:44:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2022-07-14 01:44:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2022-07-14 01:44:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2022-07-14 01:44:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2022-07-14 01:44:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 01:44:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 01:44:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:44:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:44:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2022-07-14 01:44:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2022-07-14 01:44:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2022-07-14 01:44:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2022-07-14 01:44:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2022-07-14 01:44:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2022-07-14 01:44:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2022-07-14 01:44:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2022-07-14 01:44:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2022-07-14 01:44:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2022-07-14 01:44:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-14 01:44:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-14 01:44:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-14 01:44:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-14 01:44:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 01:44:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 01:44:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2022-07-14 01:44:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2022-07-14 01:44:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2022-07-14 01:44:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2022-07-14 01:44:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-14 01:44:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-14 01:44:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-07-14 01:44:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-07-14 01:44:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2022-07-14 01:44:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2022-07-14 01:44:38,935 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:44:38,937 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:44:44,390 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:46:00,272 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:46:00,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:46:00,287 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:46:00,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:46:00 BoogieIcfgContainer [2022-07-14 01:46:00,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:46:00,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:46:00,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:46:00,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:46:00,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:44:33" (1/3) ... [2022-07-14 01:46:00,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee20aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:46:00, skipping insertion in model container [2022-07-14 01:46:00,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:44:37" (2/3) ... [2022-07-14 01:46:00,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee20aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:46:00, skipping insertion in model container [2022-07-14 01:46:00,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:46:00" (3/3) ... [2022-07-14 01:46:00,297 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-07-14 01:46:00,307 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:46:00,308 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:46:00,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:46:00,386 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a17fe0a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b87bfe0 [2022-07-14 01:46:00,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:46:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 2532 states, 1721 states have (on average 1.356769320162696) internal successors, (2335), 1769 states have internal predecessors, (2335), 665 states have call successors, (665), 145 states have call predecessors, (665), 144 states have return successors, (655), 644 states have call predecessors, (655), 655 states have call successors, (655) [2022-07-14 01:46:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 01:46:00,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:00,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:00,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1855016643, now seen corresponding path program 1 times [2022-07-14 01:46:00,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:00,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565911142] [2022-07-14 01:46:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:00,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:00,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:00,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:00,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 01:46:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:01,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 2134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:01,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:02,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:02,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:02,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565911142] [2022-07-14 01:46:02,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565911142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:02,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:02,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:02,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451814092] [2022-07-14 01:46:02,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:02,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:02,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:02,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:02,130 INFO L87 Difference]: Start difference. First operand has 2532 states, 1721 states have (on average 1.356769320162696) internal successors, (2335), 1769 states have internal predecessors, (2335), 665 states have call successors, (665), 145 states have call predecessors, (665), 144 states have return successors, (655), 644 states have call predecessors, (655), 655 states have call successors, (655) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:02,473 INFO L93 Difference]: Finished difference Result 5050 states and 7495 transitions. [2022-07-14 01:46:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:02,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-07-14 01:46:02,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:02,502 INFO L225 Difference]: With dead ends: 5050 [2022-07-14 01:46:02,502 INFO L226 Difference]: Without dead ends: 2482 [2022-07-14 01:46:02,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:02,527 INFO L413 NwaCegarLoop]: 3638 mSDtfsCounter, 3623 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:02,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3623 Valid, 3638 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:02,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2022-07-14 01:46:02,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 2482. [2022-07-14 01:46:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 1692 states have (on average 1.3504728132387707) internal successors, (2285), 1728 states have internal predecessors, (2285), 647 states have call successors, (647), 143 states have call predecessors, (647), 142 states have return successors, (646), 635 states have call predecessors, (646), 646 states have call successors, (646) [2022-07-14 01:46:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3578 transitions. [2022-07-14 01:46:02,683 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3578 transitions. Word has length 57 [2022-07-14 01:46:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:02,683 INFO L495 AbstractCegarLoop]: Abstraction has 2482 states and 3578 transitions. [2022-07-14 01:46:02,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3578 transitions. [2022-07-14 01:46:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 01:46:02,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:02,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:02,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:02,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:02,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:02,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1709645196, now seen corresponding path program 1 times [2022-07-14 01:46:02,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:02,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436663999] [2022-07-14 01:46:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:02,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:02,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:02,914 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:02,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 01:46:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:04,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:04,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:04,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:04,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:04,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:04,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436663999] [2022-07-14 01:46:04,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436663999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:04,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:04,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310053074] [2022-07-14 01:46:04,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:04,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:04,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:04,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:04,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:04,526 INFO L87 Difference]: Start difference. First operand 2482 states and 3578 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:04,764 INFO L93 Difference]: Finished difference Result 4956 states and 7147 transitions. [2022-07-14 01:46:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:04,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-14 01:46:04,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:04,776 INFO L225 Difference]: With dead ends: 4956 [2022-07-14 01:46:04,776 INFO L226 Difference]: Without dead ends: 2480 [2022-07-14 01:46:04,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:04,787 INFO L413 NwaCegarLoop]: 3573 mSDtfsCounter, 3560 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3560 SdHoareTripleChecker+Valid, 3573 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:04,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3560 Valid, 3573 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:04,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-07-14 01:46:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2480. [2022-07-14 01:46:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 1691 states have (on average 1.3500887049083383) internal successors, (2283), 1727 states have internal predecessors, (2283), 646 states have call successors, (646), 143 states have call predecessors, (646), 142 states have return successors, (645), 634 states have call predecessors, (645), 645 states have call successors, (645) [2022-07-14 01:46:04,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3574 transitions. [2022-07-14 01:46:04,857 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3574 transitions. Word has length 55 [2022-07-14 01:46:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:04,857 INFO L495 AbstractCegarLoop]: Abstraction has 2480 states and 3574 transitions. [2022-07-14 01:46:04,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:04,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3574 transitions. [2022-07-14 01:46:04,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 01:46:04,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:04,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:04,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:05,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:05,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -107077191, now seen corresponding path program 1 times [2022-07-14 01:46:05,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:05,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362156325] [2022-07-14 01:46:05,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:05,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:05,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:05,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:05,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 01:46:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:06,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:06,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:06,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:06,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:06,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362156325] [2022-07-14 01:46:06,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362156325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:06,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:06,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:06,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673050055] [2022-07-14 01:46:06,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:06,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:06,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:06,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:06,518 INFO L87 Difference]: Start difference. First operand 2480 states and 3574 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:06,789 INFO L93 Difference]: Finished difference Result 4952 states and 7139 transitions. [2022-07-14 01:46:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:06,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2022-07-14 01:46:06,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:06,802 INFO L225 Difference]: With dead ends: 4952 [2022-07-14 01:46:06,803 INFO L226 Difference]: Without dead ends: 2478 [2022-07-14 01:46:06,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:06,815 INFO L413 NwaCegarLoop]: 3569 mSDtfsCounter, 3557 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3557 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:06,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3557 Valid, 3569 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2022-07-14 01:46:06,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2478. [2022-07-14 01:46:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2478 states, 1690 states have (on average 1.3497041420118343) internal successors, (2281), 1726 states have internal predecessors, (2281), 645 states have call successors, (645), 143 states have call predecessors, (645), 142 states have return successors, (644), 633 states have call predecessors, (644), 644 states have call successors, (644) [2022-07-14 01:46:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3570 transitions. [2022-07-14 01:46:06,889 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3570 transitions. Word has length 54 [2022-07-14 01:46:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:06,889 INFO L495 AbstractCegarLoop]: Abstraction has 2478 states and 3570 transitions. [2022-07-14 01:46:06,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3570 transitions. [2022-07-14 01:46:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 01:46:06,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:06,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:06,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:07,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:07,103 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1856377378, now seen corresponding path program 1 times [2022-07-14 01:46:07,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:07,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370213657] [2022-07-14 01:46:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:07,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:07,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:07,108 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:07,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 01:46:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:08,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:08,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:08,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:08,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:08,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370213657] [2022-07-14 01:46:08,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370213657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:08,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:08,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:08,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842379902] [2022-07-14 01:46:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:08,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:08,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:08,633 INFO L87 Difference]: Start difference. First operand 2478 states and 3570 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:08,858 INFO L93 Difference]: Finished difference Result 4948 states and 7131 transitions. [2022-07-14 01:46:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2022-07-14 01:46:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:08,872 INFO L225 Difference]: With dead ends: 4948 [2022-07-14 01:46:08,872 INFO L226 Difference]: Without dead ends: 2476 [2022-07-14 01:46:08,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:08,883 INFO L413 NwaCegarLoop]: 3565 mSDtfsCounter, 3551 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:08,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3551 Valid, 3565 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:08,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-07-14 01:46:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2022-07-14 01:46:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 1689 states have (on average 1.3493191237418591) internal successors, (2279), 1725 states have internal predecessors, (2279), 644 states have call successors, (644), 143 states have call predecessors, (644), 142 states have return successors, (643), 632 states have call predecessors, (643), 643 states have call successors, (643) [2022-07-14 01:46:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3566 transitions. [2022-07-14 01:46:08,986 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3566 transitions. Word has length 56 [2022-07-14 01:46:08,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:08,988 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3566 transitions. [2022-07-14 01:46:08,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 01:46:08,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3566 transitions. [2022-07-14 01:46:08,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-14 01:46:08,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:08,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:09,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:09,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:09,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:09,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1439705741, now seen corresponding path program 1 times [2022-07-14 01:46:09,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:09,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250385934] [2022-07-14 01:46:09,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:09,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:09,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:09,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:09,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 01:46:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:10,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2156 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:10,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:10,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:10,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:10,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250385934] [2022-07-14 01:46:10,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250385934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:10,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:10,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131006264] [2022-07-14 01:46:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:10,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:10,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:10,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:10,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:10,747 INFO L87 Difference]: Start difference. First operand 2476 states and 3566 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:10,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:10,956 INFO L93 Difference]: Finished difference Result 4944 states and 7123 transitions. [2022-07-14 01:46:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:10,956 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), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2022-07-14 01:46:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:10,967 INFO L225 Difference]: With dead ends: 4944 [2022-07-14 01:46:10,967 INFO L226 Difference]: Without dead ends: 2474 [2022-07-14 01:46:10,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:10,977 INFO L413 NwaCegarLoop]: 3561 mSDtfsCounter, 3545 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3545 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:10,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3545 Valid, 3561 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:10,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-07-14 01:46:11,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-07-14 01:46:11,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 1688 states have (on average 1.3489336492890995) internal successors, (2277), 1724 states have internal predecessors, (2277), 643 states have call successors, (643), 143 states have call predecessors, (643), 142 states have return successors, (642), 631 states have call predecessors, (642), 642 states have call successors, (642) [2022-07-14 01:46:11,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3562 transitions. [2022-07-14 01:46:11,055 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3562 transitions. Word has length 61 [2022-07-14 01:46:11,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:11,056 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 3562 transitions. [2022-07-14 01:46:11,057 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), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:11,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3562 transitions. [2022-07-14 01:46:11,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 01:46:11,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:11,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:11,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:11,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:11,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash 27984260, now seen corresponding path program 1 times [2022-07-14 01:46:11,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:11,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096474634] [2022-07-14 01:46:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:11,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:11,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:11,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:11,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 01:46:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:12,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:12,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:12,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:12,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:12,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096474634] [2022-07-14 01:46:12,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096474634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:12,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:12,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:12,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120058408] [2022-07-14 01:46:12,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:12,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:12,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:12,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:12,854 INFO L87 Difference]: Start difference. First operand 2474 states and 3562 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:13,071 INFO L93 Difference]: Finished difference Result 4940 states and 7115 transitions. [2022-07-14 01:46:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:13,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2022-07-14 01:46:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:13,082 INFO L225 Difference]: With dead ends: 4940 [2022-07-14 01:46:13,082 INFO L226 Difference]: Without dead ends: 2472 [2022-07-14 01:46:13,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:13,092 INFO L413 NwaCegarLoop]: 3557 mSDtfsCounter, 3543 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:13,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 3557 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-07-14 01:46:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2022-07-14 01:46:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1687 states have (on average 1.3485477178423237) internal successors, (2275), 1723 states have internal predecessors, (2275), 642 states have call successors, (642), 143 states have call predecessors, (642), 142 states have return successors, (641), 630 states have call predecessors, (641), 641 states have call successors, (641) [2022-07-14 01:46:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3558 transitions. [2022-07-14 01:46:13,160 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3558 transitions. Word has length 59 [2022-07-14 01:46:13,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:13,160 INFO L495 AbstractCegarLoop]: Abstraction has 2472 states and 3558 transitions. [2022-07-14 01:46:13,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:13,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3558 transitions. [2022-07-14 01:46:13,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 01:46:13,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:13,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:13,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:13,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:13,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:13,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:13,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1281574067, now seen corresponding path program 1 times [2022-07-14 01:46:13,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:13,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825218548] [2022-07-14 01:46:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:13,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:13,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:13,384 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:13,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 01:46:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:14,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 2150 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:14,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:14,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:14,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:14,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825218548] [2022-07-14 01:46:14,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825218548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:14,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:14,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023208120] [2022-07-14 01:46:14,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:14,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:14,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:14,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:14,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:14,955 INFO L87 Difference]: Start difference. First operand 2472 states and 3558 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:15,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:15,189 INFO L93 Difference]: Finished difference Result 4936 states and 7107 transitions. [2022-07-14 01:46:15,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:15,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2022-07-14 01:46:15,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:15,200 INFO L225 Difference]: With dead ends: 4936 [2022-07-14 01:46:15,200 INFO L226 Difference]: Without dead ends: 2470 [2022-07-14 01:46:15,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:15,210 INFO L413 NwaCegarLoop]: 3553 mSDtfsCounter, 3540 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:15,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 3553 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-07-14 01:46:15,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2470. [2022-07-14 01:46:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 1686 states have (on average 1.348161328588375) internal successors, (2273), 1722 states have internal predecessors, (2273), 641 states have call successors, (641), 143 states have call predecessors, (641), 142 states have return successors, (640), 629 states have call predecessors, (640), 640 states have call successors, (640) [2022-07-14 01:46:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3554 transitions. [2022-07-14 01:46:15,279 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3554 transitions. Word has length 58 [2022-07-14 01:46:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:15,279 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3554 transitions. [2022-07-14 01:46:15,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3554 transitions. [2022-07-14 01:46:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-14 01:46:15,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:15,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:15,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:15,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:15,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 780352758, now seen corresponding path program 1 times [2022-07-14 01:46:15,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:15,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875029688] [2022-07-14 01:46:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:15,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:15,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:15,507 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:15,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 01:46:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:16,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:16,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 01:46:16,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:16,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:16,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875029688] [2022-07-14 01:46:16,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875029688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:16,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:16,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:16,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848791391] [2022-07-14 01:46:16,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:16,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:16,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:16,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:16,952 INFO L87 Difference]: Start difference. First operand 2470 states and 3554 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:17,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:17,150 INFO L93 Difference]: Finished difference Result 4562 states and 6551 transitions. [2022-07-14 01:46:17,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:17,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2022-07-14 01:46:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:17,160 INFO L225 Difference]: With dead ends: 4562 [2022-07-14 01:46:17,160 INFO L226 Difference]: Without dead ends: 2098 [2022-07-14 01:46:17,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:17,170 INFO L413 NwaCegarLoop]: 3001 mSDtfsCounter, 2986 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2986 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:17,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2986 Valid, 3001 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:46:17,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2022-07-14 01:46:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2098. [2022-07-14 01:46:17,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 1442 states have (on average 1.3474341192787795) internal successors, (1943), 1467 states have internal predecessors, (1943), 530 states have call successors, (530), 126 states have call predecessors, (530), 125 states have return successors, (529), 522 states have call predecessors, (529), 529 states have call successors, (529) [2022-07-14 01:46:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 3002 transitions. [2022-07-14 01:46:17,249 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 3002 transitions. Word has length 60 [2022-07-14 01:46:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:17,249 INFO L495 AbstractCegarLoop]: Abstraction has 2098 states and 3002 transitions. [2022-07-14 01:46:17,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 01:46:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 3002 transitions. [2022-07-14 01:46:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-14 01:46:17,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:17,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:17,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:17,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:17,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:17,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:17,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1189600970, now seen corresponding path program 1 times [2022-07-14 01:46:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:17,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422804499] [2022-07-14 01:46:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:17,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:17,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:17,463 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:17,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 01:46:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:18,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 2177 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:18,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 01:46:18,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:18,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:18,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422804499] [2022-07-14 01:46:18,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422804499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:18,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:18,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:18,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028877957] [2022-07-14 01:46:18,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:18,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:18,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:18,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:18,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:18,825 INFO L87 Difference]: Start difference. First operand 2098 states and 3002 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 01:46:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:20,140 INFO L93 Difference]: Finished difference Result 6086 states and 8708 transitions. [2022-07-14 01:46:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:20,141 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), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2022-07-14 01:46:20,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:20,165 INFO L225 Difference]: With dead ends: 6086 [2022-07-14 01:46:20,166 INFO L226 Difference]: Without dead ends: 3994 [2022-07-14 01:46:20,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:20,176 INFO L413 NwaCegarLoop]: 3481 mSDtfsCounter, 2703 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 6387 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:20,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2703 Valid, 6387 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 01:46:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-07-14 01:46:20,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3989. [2022-07-14 01:46:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3989 states, 2740 states have (on average 1.345985401459854) internal successors, (3688), 2791 states have internal predecessors, (3688), 1010 states have call successors, (1010), 239 states have call predecessors, (1010), 238 states have return successors, (1009), 994 states have call predecessors, (1009), 1009 states have call successors, (1009) [2022-07-14 01:46:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3989 states to 3989 states and 5707 transitions. [2022-07-14 01:46:20,358 INFO L78 Accepts]: Start accepts. Automaton has 3989 states and 5707 transitions. Word has length 77 [2022-07-14 01:46:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:20,359 INFO L495 AbstractCegarLoop]: Abstraction has 3989 states and 5707 transitions. [2022-07-14 01:46:20,359 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), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 01:46:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3989 states and 5707 transitions. [2022-07-14 01:46:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-14 01:46:20,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:20,365 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:20,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:20,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:20,581 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1483659580, now seen corresponding path program 1 times [2022-07-14 01:46:20,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:20,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371539844] [2022-07-14 01:46:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:20,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:20,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:20,585 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:20,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 01:46:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:21,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:21,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:21,883 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 01:46:21,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:21,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:21,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371539844] [2022-07-14 01:46:21,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371539844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:21,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:21,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:21,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252275477] [2022-07-14 01:46:21,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:21,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:21,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:21,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:21,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:21,886 INFO L87 Difference]: Start difference. First operand 3989 states and 5707 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:22,574 INFO L93 Difference]: Finished difference Result 11748 states and 16805 transitions. [2022-07-14 01:46:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:22,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 75 [2022-07-14 01:46:22,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:22,612 INFO L225 Difference]: With dead ends: 11748 [2022-07-14 01:46:22,612 INFO L226 Difference]: Without dead ends: 7765 [2022-07-14 01:46:22,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:22,621 INFO L413 NwaCegarLoop]: 3715 mSDtfsCounter, 2837 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 6678 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:22,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 6678 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 01:46:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-07-14 01:46:22,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7758. [2022-07-14 01:46:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7758 states, 5331 states have (on average 1.3462764959669855) internal successors, (7177), 5434 states have internal predecessors, (7177), 1960 states have call successors, (1960), 467 states have call predecessors, (1960), 466 states have return successors, (1959), 1928 states have call predecessors, (1959), 1959 states have call successors, (1959) [2022-07-14 01:46:22,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7758 states to 7758 states and 11096 transitions. [2022-07-14 01:46:22,836 INFO L78 Accepts]: Start accepts. Automaton has 7758 states and 11096 transitions. Word has length 75 [2022-07-14 01:46:22,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:22,837 INFO L495 AbstractCegarLoop]: Abstraction has 7758 states and 11096 transitions. [2022-07-14 01:46:22,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:22,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7758 states and 11096 transitions. [2022-07-14 01:46:22,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-14 01:46:22,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:22,839 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:22,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:23,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:23,055 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:23,056 INFO L85 PathProgramCache]: Analyzing trace with hash 598386234, now seen corresponding path program 1 times [2022-07-14 01:46:23,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:23,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284648208] [2022-07-14 01:46:23,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:23,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:23,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:23,058 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:23,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 01:46:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:24,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 2170 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:24,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:24,406 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 01:46:24,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:24,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:24,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284648208] [2022-07-14 01:46:24,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284648208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:24,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:24,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:24,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447044654] [2022-07-14 01:46:24,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:24,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:24,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:24,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:24,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:24,409 INFO L87 Difference]: Start difference. First operand 7758 states and 11096 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:25,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:25,180 INFO L93 Difference]: Finished difference Result 22153 states and 31638 transitions. [2022-07-14 01:46:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:25,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2022-07-14 01:46:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:25,223 INFO L225 Difference]: With dead ends: 22153 [2022-07-14 01:46:25,223 INFO L226 Difference]: Without dead ends: 14401 [2022-07-14 01:46:25,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:25,243 INFO L413 NwaCegarLoop]: 3681 mSDtfsCounter, 2573 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 6644 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:25,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 6644 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 01:46:25,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14401 states. [2022-07-14 01:46:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14401 to 14390. [2022-07-14 01:46:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14390 states, 9923 states have (on average 1.3474755618260608) internal successors, (13371), 10114 states have internal predecessors, (13371), 3582 states have call successors, (3582), 885 states have call predecessors, (3582), 884 states have return successors, (3581), 3518 states have call predecessors, (3581), 3581 states have call successors, (3581) [2022-07-14 01:46:25,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14390 states to 14390 states and 20534 transitions. [2022-07-14 01:46:25,709 INFO L78 Accepts]: Start accepts. Automaton has 14390 states and 20534 transitions. Word has length 77 [2022-07-14 01:46:25,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:25,709 INFO L495 AbstractCegarLoop]: Abstraction has 14390 states and 20534 transitions. [2022-07-14 01:46:25,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:25,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14390 states and 20534 transitions. [2022-07-14 01:46:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-14 01:46:25,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:25,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:25,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:25,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:25,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:25,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1281141742, now seen corresponding path program 1 times [2022-07-14 01:46:25,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:25,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758878893] [2022-07-14 01:46:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:25,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:25,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:25,934 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:25,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 01:46:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:27,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:27,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 01:46:27,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:27,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:27,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758878893] [2022-07-14 01:46:27,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758878893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:27,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:27,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:27,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285277970] [2022-07-14 01:46:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:27,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:27,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:27,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:27,298 INFO L87 Difference]: Start difference. First operand 14390 states and 20534 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:28,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:28,510 INFO L93 Difference]: Finished difference Result 41145 states and 58536 transitions. [2022-07-14 01:46:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:28,511 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), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 78 [2022-07-14 01:46:28,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:28,646 INFO L225 Difference]: With dead ends: 41145 [2022-07-14 01:46:28,646 INFO L226 Difference]: Without dead ends: 26761 [2022-07-14 01:46:28,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:28,695 INFO L413 NwaCegarLoop]: 4160 mSDtfsCounter, 2595 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 7123 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:28,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 7123 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 01:46:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26761 states. [2022-07-14 01:46:29,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26761 to 26758. [2022-07-14 01:46:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26758 states, 18459 states have (on average 1.3449807681889594) internal successors, (24827), 18818 states have internal predecessors, (24827), 6586 states have call successors, (6586), 1713 states have call predecessors, (6586), 1712 states have return successors, (6585), 6466 states have call predecessors, (6585), 6585 states have call successors, (6585) [2022-07-14 01:46:29,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26758 states to 26758 states and 37998 transitions. [2022-07-14 01:46:29,991 INFO L78 Accepts]: Start accepts. Automaton has 26758 states and 37998 transitions. Word has length 78 [2022-07-14 01:46:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:29,991 INFO L495 AbstractCegarLoop]: Abstraction has 26758 states and 37998 transitions. [2022-07-14 01:46:29,992 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), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 26758 states and 37998 transitions. [2022-07-14 01:46:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 01:46:29,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:29,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:30,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:30,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:30,211 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:30,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:30,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1123073277, now seen corresponding path program 1 times [2022-07-14 01:46:30,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:30,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933055538] [2022-07-14 01:46:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:30,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:30,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:30,215 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:30,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 01:46:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:31,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 2159 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:31,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 01:46:31,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:31,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:31,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933055538] [2022-07-14 01:46:31,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933055538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:31,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:31,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:31,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445348999] [2022-07-14 01:46:31,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:31,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:31,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:31,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:31,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:31,776 INFO L87 Difference]: Start difference. First operand 26758 states and 37998 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:33,175 INFO L93 Difference]: Finished difference Result 73025 states and 103408 transitions. [2022-07-14 01:46:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:33,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 84 [2022-07-14 01:46:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:33,349 INFO L225 Difference]: With dead ends: 73025 [2022-07-14 01:46:33,350 INFO L226 Difference]: Without dead ends: 46273 [2022-07-14 01:46:33,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:33,438 INFO L413 NwaCegarLoop]: 4496 mSDtfsCounter, 2321 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 7459 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:33,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2321 Valid, 7459 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 01:46:33,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46273 states. [2022-07-14 01:46:34,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46273 to 46254. [2022-07-14 01:46:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46254 states, 31867 states have (on average 1.3421721530109518) internal successors, (42771), 32490 states have internal predecessors, (42771), 11306 states have call successors, (11306), 3081 states have call predecessors, (11306), 3080 states have return successors, (11305), 11082 states have call predecessors, (11305), 11305 states have call successors, (11305) [2022-07-14 01:46:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46254 states to 46254 states and 65382 transitions. [2022-07-14 01:46:34,987 INFO L78 Accepts]: Start accepts. Automaton has 46254 states and 65382 transitions. Word has length 84 [2022-07-14 01:46:34,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:34,988 INFO L495 AbstractCegarLoop]: Abstraction has 46254 states and 65382 transitions. [2022-07-14 01:46:34,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:46:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 46254 states and 65382 transitions. [2022-07-14 01:46:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-14 01:46:34,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:34,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:35,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:35,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:35,205 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:35,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:35,205 INFO L85 PathProgramCache]: Analyzing trace with hash -480450612, now seen corresponding path program 1 times [2022-07-14 01:46:35,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:35,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787371463] [2022-07-14 01:46:35,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:35,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:35,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:35,215 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:35,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 01:46:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:36,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:46:36,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-14 01:46:36,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:36,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:36,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787371463] [2022-07-14 01:46:36,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787371463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:36,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:36,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:46:36,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162218566] [2022-07-14 01:46:36,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:36,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:46:36,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:36,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:46:36,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:36,559 INFO L87 Difference]: Start difference. First operand 46254 states and 65382 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 01:46:39,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:39,639 INFO L93 Difference]: Finished difference Result 128503 states and 180912 transitions. [2022-07-14 01:46:39,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:46:39,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 87 [2022-07-14 01:46:39,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:40,154 INFO L225 Difference]: With dead ends: 128503 [2022-07-14 01:46:40,154 INFO L226 Difference]: Without dead ends: 82255 [2022-07-14 01:46:40,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:46:40,265 INFO L413 NwaCegarLoop]: 3477 mSDtfsCounter, 2604 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2604 SdHoareTripleChecker+Valid, 6368 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:40,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2604 Valid, 6368 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 01:46:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82255 states. [2022-07-14 01:46:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82255 to 82248. [2022-07-14 01:46:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82248 states, 56676 states have (on average 1.3360681770061402) internal successors, (75723), 57787 states have internal predecessors, (75723), 19888 states have call successors, (19888), 5684 states have call predecessors, (19888), 5683 states have return successors, (19887), 19464 states have call predecessors, (19887), 19887 states have call successors, (19887) [2022-07-14 01:46:42,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82248 states to 82248 states and 115498 transitions. [2022-07-14 01:46:42,957 INFO L78 Accepts]: Start accepts. Automaton has 82248 states and 115498 transitions. Word has length 87 [2022-07-14 01:46:42,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:42,958 INFO L495 AbstractCegarLoop]: Abstraction has 82248 states and 115498 transitions. [2022-07-14 01:46:42,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 01:46:42,958 INFO L276 IsEmpty]: Start isEmpty. Operand 82248 states and 115498 transitions. [2022-07-14 01:46:42,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-14 01:46:42,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:42,979 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:43,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:43,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:43,199 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:43,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:43,200 INFO L85 PathProgramCache]: Analyzing trace with hash -158492693, now seen corresponding path program 1 times [2022-07-14 01:46:43,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:43,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498368037] [2022-07-14 01:46:43,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:43,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:43,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:43,203 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:43,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 01:46:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:44,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 01:46:44,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:44,802 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-07-14 01:46:44,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:46:44,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:44,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498368037] [2022-07-14 01:46:44,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498368037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:46:44,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:46:44,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 01:46:44,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103370648] [2022-07-14 01:46:44,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:46:44,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 01:46:44,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:44,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 01:46:44,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 01:46:44,806 INFO L87 Difference]: Start difference. First operand 82248 states and 115498 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 01:46:47,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:47,111 INFO L93 Difference]: Finished difference Result 164682 states and 231309 transitions. [2022-07-14 01:46:47,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:46:47,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 205 [2022-07-14 01:46:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:47,744 INFO L225 Difference]: With dead ends: 164682 [2022-07-14 01:46:47,744 INFO L226 Difference]: Without dead ends: 82438 [2022-07-14 01:46:47,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:46:47,936 INFO L413 NwaCegarLoop]: 2999 mSDtfsCounter, 2 mSDsluCounter, 5995 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8994 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:47,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8994 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:46:47,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82438 states. [2022-07-14 01:46:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82438 to 82438. [2022-07-14 01:46:50,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82438 states, 56803 states have (on average 1.3364258929986093) internal successors, (75913), 57977 states have internal predecessors, (75913), 19888 states have call successors, (19888), 5684 states have call predecessors, (19888), 5746 states have return successors, (19950), 19464 states have call predecessors, (19950), 19887 states have call successors, (19950) [2022-07-14 01:46:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82438 states to 82438 states and 115751 transitions. [2022-07-14 01:46:50,699 INFO L78 Accepts]: Start accepts. Automaton has 82438 states and 115751 transitions. Word has length 205 [2022-07-14 01:46:50,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:46:50,700 INFO L495 AbstractCegarLoop]: Abstraction has 82438 states and 115751 transitions. [2022-07-14 01:46:50,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 01:46:50,700 INFO L276 IsEmpty]: Start isEmpty. Operand 82438 states and 115751 transitions. [2022-07-14 01:46:50,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-14 01:46:50,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:46:50,721 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:46:50,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 01:46:50,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:46:50,943 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:46:50,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:46:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1108122258, now seen corresponding path program 1 times [2022-07-14 01:46:50,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:46:50,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506946003] [2022-07-14 01:46:50,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:46:50,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:46:50,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:46:50,947 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:46:50,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 01:46:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:46:52,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 2614 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 01:46:52,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:46:52,572 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-07-14 01:46:52,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:46:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2022-07-14 01:46:53,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:46:53,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506946003] [2022-07-14 01:46:53,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506946003] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:46:53,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:46:53,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 01:46:53,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133794263] [2022-07-14 01:46:53,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:46:53,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:46:53,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:46:53,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:46:53,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:46:53,365 INFO L87 Difference]: Start difference. First operand 82438 states and 115751 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 01:46:56,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:46:56,513 INFO L93 Difference]: Finished difference Result 165318 states and 232262 transitions. [2022-07-14 01:46:56,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 01:46:56,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 206 [2022-07-14 01:46:56,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:46:56,992 INFO L225 Difference]: With dead ends: 165318 [2022-07-14 01:46:56,992 INFO L226 Difference]: Without dead ends: 82882 [2022-07-14 01:46:57,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:46:57,189 INFO L413 NwaCegarLoop]: 3000 mSDtfsCounter, 11 mSDsluCounter, 11990 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14990 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:46:57,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14990 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:46:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82882 states. [2022-07-14 01:46:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82882 to 82630. [2022-07-14 01:46:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82630 states, 56995 states have (on average 1.3386086498815686) internal successors, (76294), 58169 states have internal predecessors, (76294), 19888 states have call successors, (19888), 5684 states have call predecessors, (19888), 5746 states have return successors, (19950), 19464 states have call predecessors, (19950), 19887 states have call successors, (19950) [2022-07-14 01:47:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82630 states to 82630 states and 116132 transitions. [2022-07-14 01:47:00,073 INFO L78 Accepts]: Start accepts. Automaton has 82630 states and 116132 transitions. Word has length 206 [2022-07-14 01:47:00,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:47:00,074 INFO L495 AbstractCegarLoop]: Abstraction has 82630 states and 116132 transitions. [2022-07-14 01:47:00,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-14 01:47:00,075 INFO L276 IsEmpty]: Start isEmpty. Operand 82630 states and 116132 transitions. [2022-07-14 01:47:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-14 01:47:00,094 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:47:00,094 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:47:00,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-14 01:47:00,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:47:00,311 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:47:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:47:00,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1603045803, now seen corresponding path program 2 times [2022-07-14 01:47:00,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:47:00,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929921215] [2022-07-14 01:47:00,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:47:00,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:47:00,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:47:00,315 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:47:00,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 01:47:01,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:47:01,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:47:01,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 01:47:01,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:47:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-07-14 01:47:01,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:47:01,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:47:01,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929921215] [2022-07-14 01:47:01,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929921215] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:47:01,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:47:01,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:47:01,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509085956] [2022-07-14 01:47:01,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:47:01,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:47:01,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:47:01,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:47:01,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:47:01,920 INFO L87 Difference]: Start difference. First operand 82630 states and 116132 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 01:47:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:47:05,176 INFO L93 Difference]: Finished difference Result 165569 states and 232734 transitions. [2022-07-14 01:47:05,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 01:47:05,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 209 [2022-07-14 01:47:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:47:05,489 INFO L225 Difference]: With dead ends: 165569 [2022-07-14 01:47:05,489 INFO L226 Difference]: Without dead ends: 82630 [2022-07-14 01:47:05,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:47:05,687 INFO L413 NwaCegarLoop]: 2994 mSDtfsCounter, 6 mSDsluCounter, 11948 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14942 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:47:05,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14942 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 01:47:05,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82630 states. [2022-07-14 01:47:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82630 to 82630. [2022-07-14 01:47:08,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82630 states, 56995 states have (on average 1.3375032897622599) internal successors, (76231), 58169 states have internal predecessors, (76231), 19888 states have call successors, (19888), 5684 states have call predecessors, (19888), 5746 states have return successors, (19950), 19464 states have call predecessors, (19950), 19887 states have call successors, (19950)