./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 6c24879c 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-?-6c24879 [2022-07-12 14:04:12,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:04:12,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:04:12,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:04:12,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:04:12,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:04:12,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:04:12,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:04:12,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:04:12,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:04:12,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:04:12,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:04:12,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:04:12,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:04:12,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:04:12,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:04:12,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:04:12,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:04:12,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:04:12,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:04:12,715 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:04:12,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:04:12,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:04:12,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:04:12,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:04:12,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:04:12,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:04:12,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:04:12,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:04:12,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:04:12,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:04:12,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:04:12,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:04:12,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:04:12,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:04:12,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:04:12,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:04:12,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:04:12,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:04:12,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:04:12,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:04:12,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:04:12,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:04:12,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:04:12,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:04:12,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:04:12,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:04:12,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:04:12,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:04:12,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:04:12,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:04:12,774 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:04:12,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:04:12,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:04:12,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:04:12,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:04:12,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:04:12,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:04:12,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:04:12,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:04:12,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:04:12,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:04:12,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:04:12,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:04:12,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:04:12,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:04:12,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:04:12,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:04:12,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:04:12,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:04:12,779 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:04:12,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:04:12,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:04:12,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-07-12 14:04:13,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:04:13,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:04:13,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:04:13,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:04:13,029 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:04:13,031 INFO L432 ainManager$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 [2022-07-12 14:04:13,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a849a3104/4c52699674554a908579db4b41fab5b5/FLAGc7cd311d1 [2022-07-12 14:04:13,972 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:04:13,972 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 [2022-07-12 14:04:14,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a849a3104/4c52699674554a908579db4b41fab5b5/FLAGc7cd311d1 [2022-07-12 14:04:14,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a849a3104/4c52699674554a908579db4b41fab5b5 [2022-07-12 14:04:14,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:04:14,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:04:14,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:04:14,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:04:14,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:04:14,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:04:14" (1/1) ... [2022-07-12 14:04:14,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d30cb4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:14, skipping insertion in model container [2022-07-12 14:04:14,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:04:14" (1/1) ... [2022-07-12 14:04:14,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:04:14,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:04:17,734 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] [2022-07-12 14:04:17,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:04:17,830 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:04:18,231 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) [2022-07-12 14:04:18,237 INFO L158 Benchmark]: Toolchain (without parser) took 3767.73ms. Allocated memory was 92.3MB in the beginning and 197.1MB in the end (delta: 104.9MB). Free memory was 50.7MB in the beginning and 101.3MB in the end (delta: -50.6MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2022-07-12 14:04:18,238 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:04:18,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3765.98ms. Allocated memory was 92.3MB in the beginning and 197.1MB in the end (delta: 104.9MB). Free memory was 50.5MB in the beginning and 101.3MB in the end (delta: -50.8MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2022-07-12 14:04:18,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3765.98ms. Allocated memory was 92.3MB in the beginning and 197.1MB in the end (delta: 104.9MB). Free memory was 50.5MB in the beginning and 101.3MB in the end (delta: -50.8MB). Peak memory consumption was 78.0MB. 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-?-6c24879 [2022-07-12 14:04:20,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:04:20,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:04:20,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:04:20,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:04:20,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:04:20,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:04:20,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:04:20,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:04:20,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:04:20,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:04:20,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:04:20,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:04:20,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:04:20,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:04:20,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:04:20,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:04:20,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:04:20,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:04:20,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:04:20,080 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:04:20,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:04:20,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:04:20,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:04:20,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:04:20,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:04:20,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:04:20,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:04:20,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:04:20,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:04:20,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:04:20,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:04:20,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:04:20,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:04:20,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:04:20,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:04:20,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:04:20,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:04:20,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:04:20,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:04:20,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:04:20,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:04:20,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:04:20,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:04:20,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:04:20,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:04:20,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:04:20,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:04:20,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:04:20,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:04:20,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:04:20,135 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:04:20,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:04:20,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:04:20,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:04:20,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:04:20,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:04:20,137 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:04:20,151 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:04:20,152 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:04:20,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:04:20,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:04:20,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:04:20,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:04:20,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:04:20,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:04:20,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:04:20,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:04:20,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:04:20,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:04:20,154 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:04:20,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:04:20,154 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:04:20,155 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:04:20,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:04:20,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:04:20,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-07-12 14:04:20,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:04:20,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:04:20,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:04:20,517 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:04:20,517 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:04:20,519 INFO L432 ainManager$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 [2022-07-12 14:04:20,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1227e749/f2a4e3c97ea047eda4ac5113e9e6fccc/FLAG5ee67e5f4 [2022-07-12 14:04:21,420 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:04:21,421 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 [2022-07-12 14:04:21,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1227e749/f2a4e3c97ea047eda4ac5113e9e6fccc/FLAG5ee67e5f4 [2022-07-12 14:04:21,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1227e749/f2a4e3c97ea047eda4ac5113e9e6fccc [2022-07-12 14:04:21,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:04:21,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:04:21,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:04:21,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:04:21,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:04:21,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:04:21" (1/1) ... [2022-07-12 14:04:21,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f77d414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:21, skipping insertion in model container [2022-07-12 14:04:21,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:04:21" (1/1) ... [2022-07-12 14:04:21,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:04:21,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:04:25,835 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] [2022-07-12 14:04:25,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:04:25,952 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:04:26,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:04:26,374 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] [2022-07-12 14:04:26,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:04:26,389 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:04:26,857 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] [2022-07-12 14:04:26,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:04:27,099 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:04:27,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27 WrapperNode [2022-07-12 14:04:27,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:04:27,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:04:27,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:04:27,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:04:27,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,423 INFO L137 Inliner]: procedures = 504, calls = 4666, calls flagged for inlining = 135, calls inlined = 106, statements flattened = 6188 [2022-07-12 14:04:27,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:04:27,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:04:27,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:04:27,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:04:27,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:04:27,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:04:27,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:04:27,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:04:27,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (1/1) ... [2022-07-12 14:04:27,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:04:27,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:04:27,768 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) [2022-07-12 14:04:27,797 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 [2022-07-12 14:04:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-12 14:04:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-12 14:04:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2022-07-12 14:04:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2022-07-12 14:04:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:04:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:04:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-12 14:04:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-12 14:04:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2022-07-12 14:04:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2022-07-12 14:04:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 14:04:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 14:04:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:04:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:04:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2022-07-12 14:04:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2022-07-12 14:04:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2022-07-12 14:04:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2022-07-12 14:04:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-12 14:04:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-12 14:04:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 14:04:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 14:04:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 14:04:27,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 14:04:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2022-07-12 14:04:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2022-07-12 14:04:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2022-07-12 14:04:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2022-07-12 14:04:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-12 14:04:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-12 14:04:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 14:04:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2022-07-12 14:04:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2022-07-12 14:04:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 14:04:27,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 14:04:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 14:04:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 14:04:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2022-07-12 14:04:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2022-07-12 14:04:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-07-12 14:04:27,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-07-12 14:04:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:04:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 14:04:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:04:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:04:27,818 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2022-07-12 14:04:27,818 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2022-07-12 14:04:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-12 14:04:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-12 14:04:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2022-07-12 14:04:27,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2022-07-12 14:04:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2022-07-12 14:04:27,820 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2022-07-12 14:04:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2022-07-12 14:04:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 14:04:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 14:04:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2022-07-12 14:04:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2022-07-12 14:04:27,821 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-07-12 14:04:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-07-12 14:04:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2022-07-12 14:04:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2022-07-12 14:04:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2022-07-12 14:04:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2022-07-12 14:04:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:04:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:04:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2022-07-12 14:04:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2022-07-12 14:04:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:04:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:04:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2022-07-12 14:04:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2022-07-12 14:04:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2022-07-12 14:04:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2022-07-12 14:04:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2022-07-12 14:04:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-12 14:04:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-12 14:04:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2022-07-12 14:04:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2022-07-12 14:04:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 14:04:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 14:04:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2022-07-12 14:04:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2022-07-12 14:04:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2022-07-12 14:04:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2022-07-12 14:04:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:04:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:04:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2022-07-12 14:04:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2022-07-12 14:04:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:04:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-07-12 14:04:27,828 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-07-12 14:04:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-07-12 14:04:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-07-12 14:04:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:04:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2022-07-12 14:04:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2022-07-12 14:04:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 14:04:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 14:04:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:04:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 14:04:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 14:04:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:04:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:04:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 14:04:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-07-12 14:04:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-07-12 14:04:27,831 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2022-07-12 14:04:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2022-07-12 14:04:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2022-07-12 14:04:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2022-07-12 14:04:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2022-07-12 14:04:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2022-07-12 14:04:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2022-07-12 14:04:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2022-07-12 14:04:27,835 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 14:04:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 14:04:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 14:04:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 14:04:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2022-07-12 14:04:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2022-07-12 14:04:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2022-07-12 14:04:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2022-07-12 14:04:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2022-07-12 14:04:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2022-07-12 14:04:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2022-07-12 14:04:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2022-07-12 14:04:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2022-07-12 14:04:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2022-07-12 14:04:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-12 14:04:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-12 14:04:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 14:04:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 14:04:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2022-07-12 14:04:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2022-07-12 14:04:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 14:04:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 14:04:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2022-07-12 14:04:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2022-07-12 14:04:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 14:04:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 14:04:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 14:04:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:04:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:04:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 14:04:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 14:04:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2022-07-12 14:04:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2022-07-12 14:04:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:04:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2022-07-12 14:04:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2022-07-12 14:04:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:04:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-12 14:04:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-12 14:04:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:04:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:04:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:04:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:04:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:04:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:04:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2022-07-12 14:04:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2022-07-12 14:04:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-12 14:04:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-12 14:04:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-12 14:04:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-12 14:04:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2022-07-12 14:04:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2022-07-12 14:04:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-07-12 14:04:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-07-12 14:04:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-07-12 14:04:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-07-12 14:04:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2022-07-12 14:04:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2022-07-12 14:04:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2022-07-12 14:04:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2022-07-12 14:04:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:04:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:04:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-07-12 14:04:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-07-12 14:04:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2022-07-12 14:04:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2022-07-12 14:04:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 14:04:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 14:04:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2022-07-12 14:04:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2022-07-12 14:04:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-07-12 14:04:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-07-12 14:04:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:04:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:04:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2022-07-12 14:04:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2022-07-12 14:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-12 14:04:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-12 14:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-12 14:04:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-12 14:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2022-07-12 14:04:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2022-07-12 14:04:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:04:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2022-07-12 14:04:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2022-07-12 14:04:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2022-07-12 14:04:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2022-07-12 14:04:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2022-07-12 14:04:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2022-07-12 14:04:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 14:04:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 14:04:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:04:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-12 14:04:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-12 14:04:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 14:04:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 14:04:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2022-07-12 14:04:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2022-07-12 14:04:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:04:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:04:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:04:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:04:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:04:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2022-07-12 14:04:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2022-07-12 14:04:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-07-12 14:04:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-07-12 14:04:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2022-07-12 14:04:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2022-07-12 14:04:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-12 14:04:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-12 14:04:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2022-07-12 14:04:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2022-07-12 14:04:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2022-07-12 14:04:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2022-07-12 14:04:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 14:04:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 14:04:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-12 14:04:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-12 14:04:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-12 14:04:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-12 14:04:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2022-07-12 14:04:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2022-07-12 14:04:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2022-07-12 14:04:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2022-07-12 14:04:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2022-07-12 14:04:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2022-07-12 14:04:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2022-07-12 14:04:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2022-07-12 14:04:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 14:04:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 14:04:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2022-07-12 14:04:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2022-07-12 14:04:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2022-07-12 14:04:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2022-07-12 14:04:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2022-07-12 14:04:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2022-07-12 14:04:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2022-07-12 14:04:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2022-07-12 14:04:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2022-07-12 14:04:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2022-07-12 14:04:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 14:04:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 14:04:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2022-07-12 14:04:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2022-07-12 14:04:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2022-07-12 14:04:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2022-07-12 14:04:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-12 14:04:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-12 14:04:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2022-07-12 14:04:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2022-07-12 14:04:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 14:04:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 14:04:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 14:04:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 14:04:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2022-07-12 14:04:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2022-07-12 14:04:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 14:04:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 14:04:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-07-12 14:04:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-07-12 14:04:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 14:04:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 14:04:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 14:04:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:04:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:04:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:04:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:04:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:04:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2022-07-12 14:04:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2022-07-12 14:04:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2022-07-12 14:04:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2022-07-12 14:04:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2022-07-12 14:04:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2022-07-12 14:04:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2022-07-12 14:04:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2022-07-12 14:04:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 14:04:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 14:04:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:04:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:04:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2022-07-12 14:04:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2022-07-12 14:04:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2022-07-12 14:04:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2022-07-12 14:04:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2022-07-12 14:04:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2022-07-12 14:04:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2022-07-12 14:04:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2022-07-12 14:04:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2022-07-12 14:04:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2022-07-12 14:04:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 14:04:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 14:04:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-12 14:04:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-12 14:04:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 14:04:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 14:04:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2022-07-12 14:04:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2022-07-12 14:04:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2022-07-12 14:04:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2022-07-12 14:04:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 14:04:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 14:04:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-07-12 14:04:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-07-12 14:04:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2022-07-12 14:04:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2022-07-12 14:04:28,690 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:04:28,694 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:04:34,480 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:05:59,569 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:05:59,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:05:59,599 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 14:05:59,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:05:59 BoogieIcfgContainer [2022-07-12 14:05:59,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:05:59,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:05:59,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:05:59,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:05:59,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:04:21" (1/3) ... [2022-07-12 14:05:59,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6149961b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:05:59, skipping insertion in model container [2022-07-12 14:05:59,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:04:27" (2/3) ... [2022-07-12 14:05:59,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6149961b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:05:59, skipping insertion in model container [2022-07-12 14:05:59,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:05:59" (3/3) ... [2022-07-12 14:05:59,613 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-07-12 14:05:59,627 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:05:59,628 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:05:59,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:05:59,736 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@3c9e9546, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@36c75412 [2022-07-12 14:05:59,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:05:59,751 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) [2022-07-12 14:05:59,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 14:05:59,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:59,773 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] [2022-07-12 14:05:59,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:59,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1855016643, now seen corresponding path program 1 times [2022-07-12 14:05:59,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:59,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2229147] [2022-07-12 14:05:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:05:59,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:59,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:59,805 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) [2022-07-12 14:05:59,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 14:06:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:01,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 2134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:01,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:01,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:01,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:01,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2229147] [2022-07-12 14:06:01,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2229147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:01,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:01,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:01,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110848387] [2022-07-12 14:06:01,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:01,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:01,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:01,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:01,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:01,696 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) [2022-07-12 14:06:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:02,184 INFO L93 Difference]: Finished difference Result 5050 states and 7495 transitions. [2022-07-12 14:06:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:02,187 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 [2022-07-12 14:06:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:02,229 INFO L225 Difference]: With dead ends: 5050 [2022-07-12 14:06:02,229 INFO L226 Difference]: Without dead ends: 2482 [2022-07-12 14:06:02,260 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 [2022-07-12 14:06:02,263 INFO L413 NwaCegarLoop]: 3638 mSDtfsCounter, 3623 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 14:06:02,264 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] [2022-07-12 14:06:02,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2022-07-12 14:06:02,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 2482. [2022-07-12 14:06:02,460 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) [2022-07-12 14:06:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3578 transitions. [2022-07-12 14:06:02,489 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3578 transitions. Word has length 57 [2022-07-12 14:06:02,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:02,490 INFO L495 AbstractCegarLoop]: Abstraction has 2482 states and 3578 transitions. [2022-07-12 14:06:02,491 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) [2022-07-12 14:06:02,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3578 transitions. [2022-07-12 14:06:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-12 14:06:02,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:02,500 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] [2022-07-12 14:06:02,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:02,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:02,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:02,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:02,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1709645196, now seen corresponding path program 1 times [2022-07-12 14:06:02,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:02,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822407543] [2022-07-12 14:06:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:02,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:02,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:02,735 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) [2022-07-12 14:06:02,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 14:06:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:04,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:04,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:04,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:04,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:04,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822407543] [2022-07-12 14:06:04,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822407543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:04,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:04,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012568447] [2022-07-12 14:06:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:04,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:04,586 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) [2022-07-12 14:06:04,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:04,902 INFO L93 Difference]: Finished difference Result 4956 states and 7147 transitions. [2022-07-12 14:06:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:04,902 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 [2022-07-12 14:06:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:04,922 INFO L225 Difference]: With dead ends: 4956 [2022-07-12 14:06:04,922 INFO L226 Difference]: Without dead ends: 2480 [2022-07-12 14:06:04,940 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 [2022-07-12 14:06:04,944 INFO L413 NwaCegarLoop]: 3573 mSDtfsCounter, 3560 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 14:06:04,944 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] [2022-07-12 14:06:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-07-12 14:06:05,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2480. [2022-07-12 14:06:05,035 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) [2022-07-12 14:06:05,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3574 transitions. [2022-07-12 14:06:05,059 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3574 transitions. Word has length 55 [2022-07-12 14:06:05,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:05,060 INFO L495 AbstractCegarLoop]: Abstraction has 2480 states and 3574 transitions. [2022-07-12 14:06:05,060 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) [2022-07-12 14:06:05,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3574 transitions. [2022-07-12 14:06:05,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 14:06:05,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:05,065 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] [2022-07-12 14:06:05,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:05,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:05,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:05,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:05,284 INFO L85 PathProgramCache]: Analyzing trace with hash -107077191, now seen corresponding path program 1 times [2022-07-12 14:06:05,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:05,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223984353] [2022-07-12 14:06:05,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:05,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:05,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:05,290 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) [2022-07-12 14:06:05,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 14:06:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:06,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:06,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:07,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:07,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:07,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223984353] [2022-07-12 14:06:07,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223984353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:07,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:07,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:07,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722416391] [2022-07-12 14:06:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:07,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:07,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:07,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:07,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:07,020 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) [2022-07-12 14:06:07,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:07,282 INFO L93 Difference]: Finished difference Result 4952 states and 7139 transitions. [2022-07-12 14:06:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:07,283 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 [2022-07-12 14:06:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:07,299 INFO L225 Difference]: With dead ends: 4952 [2022-07-12 14:06:07,299 INFO L226 Difference]: Without dead ends: 2478 [2022-07-12 14:06:07,310 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 [2022-07-12 14:06:07,313 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 [2022-07-12 14:06:07,314 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] [2022-07-12 14:06:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2022-07-12 14:06:07,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2478. [2022-07-12 14:06:07,386 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) [2022-07-12 14:06:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 3570 transitions. [2022-07-12 14:06:07,463 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 3570 transitions. Word has length 54 [2022-07-12 14:06:07,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:07,463 INFO L495 AbstractCegarLoop]: Abstraction has 2478 states and 3570 transitions. [2022-07-12 14:06:07,463 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) [2022-07-12 14:06:07,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 3570 transitions. [2022-07-12 14:06:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 14:06:07,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:07,466 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] [2022-07-12 14:06:07,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:07,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:07,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:07,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:07,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1856377378, now seen corresponding path program 1 times [2022-07-12 14:06:07,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:07,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184299256] [2022-07-12 14:06:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:07,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:07,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:07,692 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) [2022-07-12 14:06:07,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 14:06:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:08,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:08,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:09,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:09,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:09,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184299256] [2022-07-12 14:06:09,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184299256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:09,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:09,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:09,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084941274] [2022-07-12 14:06:09,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:09,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:09,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:09,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:09,258 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) [2022-07-12 14:06:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:09,509 INFO L93 Difference]: Finished difference Result 4948 states and 7131 transitions. [2022-07-12 14:06:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:09,510 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 [2022-07-12 14:06:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:09,524 INFO L225 Difference]: With dead ends: 4948 [2022-07-12 14:06:09,525 INFO L226 Difference]: Without dead ends: 2476 [2022-07-12 14:06:09,536 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 [2022-07-12 14:06:09,537 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 [2022-07-12 14:06:09,537 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] [2022-07-12 14:06:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-07-12 14:06:09,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2022-07-12 14:06:09,614 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) [2022-07-12 14:06:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3566 transitions. [2022-07-12 14:06:09,628 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3566 transitions. Word has length 56 [2022-07-12 14:06:09,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:09,629 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3566 transitions. [2022-07-12 14:06:09,630 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) [2022-07-12 14:06:09,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3566 transitions. [2022-07-12 14:06:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-12 14:06:09,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:09,634 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] [2022-07-12 14:06:09,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:09,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:09,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:09,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1439705741, now seen corresponding path program 1 times [2022-07-12 14:06:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:09,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415623295] [2022-07-12 14:06:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:09,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:09,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:09,853 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) [2022-07-12 14:06:09,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 14:06:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:11,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 2156 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:11,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:11,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:11,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:11,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415623295] [2022-07-12 14:06:11,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415623295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:11,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:11,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:11,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225686420] [2022-07-12 14:06:11,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:11,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:11,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:11,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:11,474 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) [2022-07-12 14:06:11,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:11,795 INFO L93 Difference]: Finished difference Result 4944 states and 7123 transitions. [2022-07-12 14:06:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:11,796 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 [2022-07-12 14:06:11,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:11,810 INFO L225 Difference]: With dead ends: 4944 [2022-07-12 14:06:11,810 INFO L226 Difference]: Without dead ends: 2474 [2022-07-12 14:06:11,821 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 [2022-07-12 14:06:11,822 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 [2022-07-12 14:06:11,823 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] [2022-07-12 14:06:11,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-07-12 14:06:11,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-07-12 14:06:11,913 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) [2022-07-12 14:06:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3562 transitions. [2022-07-12 14:06:11,927 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3562 transitions. Word has length 61 [2022-07-12 14:06:11,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:11,927 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 3562 transitions. [2022-07-12 14:06:11,928 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) [2022-07-12 14:06:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3562 transitions. [2022-07-12 14:06:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-12 14:06:11,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:11,931 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] [2022-07-12 14:06:11,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:12,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:12,148 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash 27984260, now seen corresponding path program 1 times [2022-07-12 14:06:12,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:12,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102025834] [2022-07-12 14:06:12,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:12,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:12,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:12,152 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) [2022-07-12 14:06:12,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 14:06:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:13,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 2152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:13,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:13,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:13,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:13,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102025834] [2022-07-12 14:06:13,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102025834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:13,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:13,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:13,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994714956] [2022-07-12 14:06:13,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:13,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:13,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:13,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:13,862 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) [2022-07-12 14:06:14,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:14,141 INFO L93 Difference]: Finished difference Result 4940 states and 7115 transitions. [2022-07-12 14:06:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:14,142 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 [2022-07-12 14:06:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:14,163 INFO L225 Difference]: With dead ends: 4940 [2022-07-12 14:06:14,164 INFO L226 Difference]: Without dead ends: 2472 [2022-07-12 14:06:14,176 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 [2022-07-12 14:06:14,177 INFO L413 NwaCegarLoop]: 3557 mSDtfsCounter, 3543 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 14:06:14,177 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] [2022-07-12 14:06:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-07-12 14:06:14,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2022-07-12 14:06:14,262 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) [2022-07-12 14:06:14,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3558 transitions. [2022-07-12 14:06:14,274 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3558 transitions. Word has length 59 [2022-07-12 14:06:14,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:14,275 INFO L495 AbstractCegarLoop]: Abstraction has 2472 states and 3558 transitions. [2022-07-12 14:06:14,275 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) [2022-07-12 14:06:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3558 transitions. [2022-07-12 14:06:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-12 14:06:14,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:14,278 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] [2022-07-12 14:06:14,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:14,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:14,500 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:14,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:14,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1281574067, now seen corresponding path program 1 times [2022-07-12 14:06:14,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:14,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931832513] [2022-07-12 14:06:14,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:14,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:14,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:14,504 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) [2022-07-12 14:06:14,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 14:06:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:15,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 2150 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:15,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:15,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:15,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:15,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931832513] [2022-07-12 14:06:15,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931832513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:15,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:15,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496042487] [2022-07-12 14:06:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:15,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:15,984 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) [2022-07-12 14:06:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:16,287 INFO L93 Difference]: Finished difference Result 4936 states and 7107 transitions. [2022-07-12 14:06:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:16,288 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 [2022-07-12 14:06:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:16,305 INFO L225 Difference]: With dead ends: 4936 [2022-07-12 14:06:16,305 INFO L226 Difference]: Without dead ends: 2470 [2022-07-12 14:06:16,318 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 [2022-07-12 14:06:16,320 INFO L413 NwaCegarLoop]: 3553 mSDtfsCounter, 3540 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 14:06:16,320 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] [2022-07-12 14:06:16,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-07-12 14:06:16,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2470. [2022-07-12 14:06:16,432 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) [2022-07-12 14:06:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3554 transitions. [2022-07-12 14:06:16,447 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3554 transitions. Word has length 58 [2022-07-12 14:06:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:16,447 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3554 transitions. [2022-07-12 14:06:16,448 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) [2022-07-12 14:06:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3554 transitions. [2022-07-12 14:06:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 14:06:16,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:16,452 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] [2022-07-12 14:06:16,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-12 14:06:16,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:16,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:16,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:16,674 INFO L85 PathProgramCache]: Analyzing trace with hash 780352758, now seen corresponding path program 1 times [2022-07-12 14:06:16,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:16,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075638293] [2022-07-12 14:06:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:16,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:16,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:16,677 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) [2022-07-12 14:06:16,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 14:06:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:17,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:17,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 14:06:18,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:18,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:18,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075638293] [2022-07-12 14:06:18,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075638293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:18,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:18,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:18,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195893283] [2022-07-12 14:06:18,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:18,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:18,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:18,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:18,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:18,346 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) [2022-07-12 14:06:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:18,597 INFO L93 Difference]: Finished difference Result 4562 states and 6551 transitions. [2022-07-12 14:06:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:18,598 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 [2022-07-12 14:06:18,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:18,613 INFO L225 Difference]: With dead ends: 4562 [2022-07-12 14:06:18,614 INFO L226 Difference]: Without dead ends: 2098 [2022-07-12 14:06:18,627 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 [2022-07-12 14:06:18,628 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 [2022-07-12 14:06:18,628 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] [2022-07-12 14:06:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2022-07-12 14:06:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2098. [2022-07-12 14:06:18,744 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) [2022-07-12 14:06:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 3002 transitions. [2022-07-12 14:06:18,754 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 3002 transitions. Word has length 60 [2022-07-12 14:06:18,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:18,755 INFO L495 AbstractCegarLoop]: Abstraction has 2098 states and 3002 transitions. [2022-07-12 14:06:18,755 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) [2022-07-12 14:06:18,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 3002 transitions. [2022-07-12 14:06:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 14:06:18,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:18,759 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] [2022-07-12 14:06:18,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:18,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:18,980 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:18,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:18,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1189600970, now seen corresponding path program 1 times [2022-07-12 14:06:18,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:18,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730353370] [2022-07-12 14:06:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:18,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:18,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:18,983 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) [2022-07-12 14:06:18,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 14:06:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:20,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 2177 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:20,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 14:06:20,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:20,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:20,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730353370] [2022-07-12 14:06:20,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730353370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:20,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:20,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:20,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039968806] [2022-07-12 14:06:20,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:20,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:20,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:20,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:20,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:20,470 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) [2022-07-12 14:06:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:21,793 INFO L93 Difference]: Finished difference Result 6086 states and 8708 transitions. [2022-07-12 14:06:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:21,794 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 [2022-07-12 14:06:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:21,818 INFO L225 Difference]: With dead ends: 6086 [2022-07-12 14:06:21,819 INFO L226 Difference]: Without dead ends: 3994 [2022-07-12 14:06:21,829 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 [2022-07-12 14:06:21,829 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 [2022-07-12 14:06:21,830 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] [2022-07-12 14:06:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-07-12 14:06:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3989. [2022-07-12 14:06:22,009 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) [2022-07-12 14:06:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3989 states to 3989 states and 5707 transitions. [2022-07-12 14:06:22,026 INFO L78 Accepts]: Start accepts. Automaton has 3989 states and 5707 transitions. Word has length 77 [2022-07-12 14:06:22,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:22,027 INFO L495 AbstractCegarLoop]: Abstraction has 3989 states and 5707 transitions. [2022-07-12 14:06:22,027 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) [2022-07-12 14:06:22,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3989 states and 5707 transitions. [2022-07-12 14:06:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-12 14:06:22,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:22,036 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] [2022-07-12 14:06:22,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:22,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:22,255 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:22,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1483659580, now seen corresponding path program 1 times [2022-07-12 14:06:22,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:22,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772234715] [2022-07-12 14:06:22,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:22,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:22,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:22,260 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) [2022-07-12 14:06:22,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 14:06:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:23,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 2135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:23,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 14:06:23,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:23,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:23,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772234715] [2022-07-12 14:06:23,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772234715] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:23,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:23,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:23,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803044698] [2022-07-12 14:06:23,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:23,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:23,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:23,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:23,811 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) [2022-07-12 14:06:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:24,549 INFO L93 Difference]: Finished difference Result 11748 states and 16805 transitions. [2022-07-12 14:06:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:24,549 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 [2022-07-12 14:06:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:24,608 INFO L225 Difference]: With dead ends: 11748 [2022-07-12 14:06:24,608 INFO L226 Difference]: Without dead ends: 7765 [2022-07-12 14:06:24,624 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 [2022-07-12 14:06:24,625 INFO L413 NwaCegarLoop]: 3715 mSDtfsCounter, 2837 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-07-12 14:06:24,626 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] [2022-07-12 14:06:24,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-07-12 14:06:24,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7758. [2022-07-12 14:06:24,957 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) [2022-07-12 14:06:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7758 states to 7758 states and 11096 transitions. [2022-07-12 14:06:24,996 INFO L78 Accepts]: Start accepts. Automaton has 7758 states and 11096 transitions. Word has length 75 [2022-07-12 14:06:24,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:24,996 INFO L495 AbstractCegarLoop]: Abstraction has 7758 states and 11096 transitions. [2022-07-12 14:06:24,996 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) [2022-07-12 14:06:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 7758 states and 11096 transitions. [2022-07-12 14:06:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 14:06:25,000 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:25,023 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] [2022-07-12 14:06:25,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:25,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:25,240 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:25,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:25,240 INFO L85 PathProgramCache]: Analyzing trace with hash 598386234, now seen corresponding path program 1 times [2022-07-12 14:06:25,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:25,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549171635] [2022-07-12 14:06:25,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:25,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:25,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:25,245 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) [2022-07-12 14:06:25,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 14:06:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:26,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 2170 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:26,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 14:06:26,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:26,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:26,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549171635] [2022-07-12 14:06:26,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549171635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:26,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:26,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:26,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983413379] [2022-07-12 14:06:26,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:26,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:26,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:26,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:26,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:26,875 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) [2022-07-12 14:06:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:27,872 INFO L93 Difference]: Finished difference Result 22153 states and 31638 transitions. [2022-07-12 14:06:27,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:27,873 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 [2022-07-12 14:06:27,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:27,939 INFO L225 Difference]: With dead ends: 22153 [2022-07-12 14:06:27,939 INFO L226 Difference]: Without dead ends: 14401 [2022-07-12 14:06:27,967 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 [2022-07-12 14:06:27,968 INFO L413 NwaCegarLoop]: 3681 mSDtfsCounter, 2573 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-07-12 14:06:27,968 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] [2022-07-12 14:06:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14401 states. [2022-07-12 14:06:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14401 to 14390. [2022-07-12 14:06:28,545 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) [2022-07-12 14:06:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14390 states to 14390 states and 20534 transitions. [2022-07-12 14:06:28,606 INFO L78 Accepts]: Start accepts. Automaton has 14390 states and 20534 transitions. Word has length 77 [2022-07-12 14:06:28,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:28,606 INFO L495 AbstractCegarLoop]: Abstraction has 14390 states and 20534 transitions. [2022-07-12 14:06:28,606 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) [2022-07-12 14:06:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 14390 states and 20534 transitions. [2022-07-12 14:06:28,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 14:06:28,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:28,609 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] [2022-07-12 14:06:28,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:28,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:28,826 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:28,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:28,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1281141742, now seen corresponding path program 1 times [2022-07-12 14:06:28,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:28,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391709596] [2022-07-12 14:06:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:28,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:28,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:28,831 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) [2022-07-12 14:06:28,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 14:06:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:30,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:30,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 14:06:30,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:30,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:30,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391709596] [2022-07-12 14:06:30,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391709596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:30,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:30,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:30,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136587653] [2022-07-12 14:06:30,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:30,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:30,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:30,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:30,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:30,424 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) [2022-07-12 14:06:31,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:31,820 INFO L93 Difference]: Finished difference Result 41145 states and 58536 transitions. [2022-07-12 14:06:31,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:31,821 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 [2022-07-12 14:06:31,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:32,077 INFO L225 Difference]: With dead ends: 41145 [2022-07-12 14:06:32,077 INFO L226 Difference]: Without dead ends: 26761 [2022-07-12 14:06:32,144 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 [2022-07-12 14:06:32,145 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 [2022-07-12 14:06:32,145 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] [2022-07-12 14:06:32,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26761 states. [2022-07-12 14:06:33,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26761 to 26758. [2022-07-12 14:06:33,570 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) [2022-07-12 14:06:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26758 states to 26758 states and 37998 transitions. [2022-07-12 14:06:33,812 INFO L78 Accepts]: Start accepts. Automaton has 26758 states and 37998 transitions. Word has length 78 [2022-07-12 14:06:33,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:33,813 INFO L495 AbstractCegarLoop]: Abstraction has 26758 states and 37998 transitions. [2022-07-12 14:06:33,813 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) [2022-07-12 14:06:33,813 INFO L276 IsEmpty]: Start isEmpty. Operand 26758 states and 37998 transitions. [2022-07-12 14:06:33,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-12 14:06:33,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:33,816 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] [2022-07-12 14:06:33,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:34,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:34,036 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:34,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:34,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1123073277, now seen corresponding path program 1 times [2022-07-12 14:06:34,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:34,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614484970] [2022-07-12 14:06:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:34,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:34,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:34,039 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) [2022-07-12 14:06:34,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 14:06:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:35,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 2159 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:35,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 14:06:35,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:35,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:35,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614484970] [2022-07-12 14:06:35,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614484970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:35,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:35,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:35,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698459630] [2022-07-12 14:06:35,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:35,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:35,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:35,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:35,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:35,561 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) [2022-07-12 14:06:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:37,235 INFO L93 Difference]: Finished difference Result 73025 states and 103408 transitions. [2022-07-12 14:06:37,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:37,236 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 [2022-07-12 14:06:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:37,535 INFO L225 Difference]: With dead ends: 73025 [2022-07-12 14:06:37,536 INFO L226 Difference]: Without dead ends: 46273 [2022-07-12 14:06:37,665 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 [2022-07-12 14:06:37,666 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 [2022-07-12 14:06:37,666 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] [2022-07-12 14:06:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46273 states. [2022-07-12 14:06:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46273 to 46254. [2022-07-12 14:06:39,733 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) [2022-07-12 14:06:39,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46254 states to 46254 states and 65382 transitions. [2022-07-12 14:06:39,909 INFO L78 Accepts]: Start accepts. Automaton has 46254 states and 65382 transitions. Word has length 84 [2022-07-12 14:06:39,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:39,909 INFO L495 AbstractCegarLoop]: Abstraction has 46254 states and 65382 transitions. [2022-07-12 14:06:39,909 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) [2022-07-12 14:06:39,909 INFO L276 IsEmpty]: Start isEmpty. Operand 46254 states and 65382 transitions. [2022-07-12 14:06:39,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-12 14:06:39,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:39,912 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] [2022-07-12 14:06:39,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:40,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:40,127 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -480450612, now seen corresponding path program 1 times [2022-07-12 14:06:40,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:40,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863522755] [2022-07-12 14:06:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:40,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:40,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:40,132 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) [2022-07-12 14:06:40,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 14:06:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:41,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:06:41,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:41,781 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 14:06:41,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:41,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:41,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863522755] [2022-07-12 14:06:41,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863522755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:41,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:41,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:06:41,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882492127] [2022-07-12 14:06:41,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:41,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:06:41,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:41,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:06:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:06:41,782 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) [2022-07-12 14:06:45,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:45,047 INFO L93 Difference]: Finished difference Result 128503 states and 180912 transitions. [2022-07-12 14:06:45,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:06:45,047 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 [2022-07-12 14:06:45,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:45,827 INFO L225 Difference]: With dead ends: 128503 [2022-07-12 14:06:45,827 INFO L226 Difference]: Without dead ends: 82255 [2022-07-12 14:06:46,027 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 [2022-07-12 14:06:46,028 INFO L413 NwaCegarLoop]: 3477 mSDtfsCounter, 2604 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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 [2022-07-12 14:06:46,028 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] [2022-07-12 14:06:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82255 states. [2022-07-12 14:06:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82255 to 82248. [2022-07-12 14:06:48,918 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) [2022-07-12 14:06:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82248 states to 82248 states and 115498 transitions. [2022-07-12 14:06:49,295 INFO L78 Accepts]: Start accepts. Automaton has 82248 states and 115498 transitions. Word has length 87 [2022-07-12 14:06:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:49,295 INFO L495 AbstractCegarLoop]: Abstraction has 82248 states and 115498 transitions. [2022-07-12 14:06:49,296 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) [2022-07-12 14:06:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 82248 states and 115498 transitions. [2022-07-12 14:06:49,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-12 14:06:49,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:49,325 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] [2022-07-12 14:06:49,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:49,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:49,539 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:49,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:49,540 INFO L85 PathProgramCache]: Analyzing trace with hash -158492693, now seen corresponding path program 1 times [2022-07-12 14:06:49,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:49,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617133485] [2022-07-12 14:06:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:49,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:49,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:49,545 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) [2022-07-12 14:06:49,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 14:06:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:06:51,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 14:06:51,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:06:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-07-12 14:06:51,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:06:51,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:06:51,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617133485] [2022-07-12 14:06:51,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617133485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:06:51,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:06:51,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:06:51,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422889305] [2022-07-12 14:06:51,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:06:51,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:06:51,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:06:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:06:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:06:51,419 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) [2022-07-12 14:06:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:06:54,378 INFO L93 Difference]: Finished difference Result 164682 states and 231309 transitions. [2022-07-12 14:06:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:06:54,380 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 [2022-07-12 14:06:54,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:06:54,936 INFO L225 Difference]: With dead ends: 164682 [2022-07-12 14:06:54,936 INFO L226 Difference]: Without dead ends: 82438 [2022-07-12 14:06:55,148 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 [2022-07-12 14:06:55,149 INFO L413 NwaCegarLoop]: 2999 mSDtfsCounter, 2 mSDsluCounter, 5995 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:06:55,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8994 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:06:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82438 states. [2022-07-12 14:06:58,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82438 to 82438. [2022-07-12 14:06:58,312 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) [2022-07-12 14:06:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82438 states to 82438 states and 115751 transitions. [2022-07-12 14:06:58,634 INFO L78 Accepts]: Start accepts. Automaton has 82438 states and 115751 transitions. Word has length 205 [2022-07-12 14:06:58,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:06:58,635 INFO L495 AbstractCegarLoop]: Abstraction has 82438 states and 115751 transitions. [2022-07-12 14:06:58,635 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) [2022-07-12 14:06:58,635 INFO L276 IsEmpty]: Start isEmpty. Operand 82438 states and 115751 transitions. [2022-07-12 14:06:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-12 14:06:58,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:06:58,664 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] [2022-07-12 14:06:58,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 14:06:58,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:06:58,883 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:06:58,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:06:58,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1108122258, now seen corresponding path program 1 times [2022-07-12 14:06:58,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:06:58,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210693170] [2022-07-12 14:06:58,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:06:58,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:06:58,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:06:58,888 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) [2022-07-12 14:06:58,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 14:07:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:07:00,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 2614 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:07:00,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:07:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-07-12 14:07:00,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:07:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2022-07-12 14:07:01,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:07:01,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210693170] [2022-07-12 14:07:01,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210693170] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:07:01,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:07:01,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 14:07:01,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581050871] [2022-07-12 14:07:01,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:07:01,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 14:07:01,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:07:01,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 14:07:01,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:07:01,456 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) [2022-07-12 14:07:05,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:07:05,223 INFO L93 Difference]: Finished difference Result 165318 states and 232262 transitions. [2022-07-12 14:07:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 14:07:05,224 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 [2022-07-12 14:07:05,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:07:05,681 INFO L225 Difference]: With dead ends: 165318 [2022-07-12 14:07:05,681 INFO L226 Difference]: Without dead ends: 82882 [2022-07-12 14:07:05,931 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 [2022-07-12 14:07:05,933 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 [2022-07-12 14:07:05,934 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] [2022-07-12 14:07:06,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82882 states. [2022-07-12 14:07:08,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82882 to 82630. [2022-07-12 14:07:08,764 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) [2022-07-12 14:07:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82630 states to 82630 states and 116132 transitions. [2022-07-12 14:07:09,345 INFO L78 Accepts]: Start accepts. Automaton has 82630 states and 116132 transitions. Word has length 206 [2022-07-12 14:07:09,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:07:09,347 INFO L495 AbstractCegarLoop]: Abstraction has 82630 states and 116132 transitions. [2022-07-12 14:07:09,347 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) [2022-07-12 14:07:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 82630 states and 116132 transitions. [2022-07-12 14:07:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-12 14:07:09,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:07:09,377 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] [2022-07-12 14:07:09,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 14:07:09,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:07:09,600 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:07:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:07:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1603045803, now seen corresponding path program 2 times [2022-07-12 14:07:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:07:09,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205846483] [2022-07-12 14:07:09,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:07:09,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:07:09,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:07:09,603 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) [2022-07-12 14:07:09,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 14:07:10,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:07:10,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:07:10,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:07:10,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:07:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-07-12 14:07:11,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:07:11,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:07:11,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205846483] [2022-07-12 14:07:11,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205846483] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:07:11,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:07:11,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:07:11,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140193022] [2022-07-12 14:07:11,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:07:11,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:07:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:07:11,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:07:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:07:11,403 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) [2022-07-12 14:07:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:07:15,508 INFO L93 Difference]: Finished difference Result 165569 states and 232734 transitions. [2022-07-12 14:07:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 14:07:15,509 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 [2022-07-12 14:07:15,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:07:15,966 INFO L225 Difference]: With dead ends: 165569 [2022-07-12 14:07:15,966 INFO L226 Difference]: Without dead ends: 82630 [2022-07-12 14:07:16,237 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 [2022-07-12 14:07:16,238 INFO L413 NwaCegarLoop]: 2994 mSDtfsCounter, 6 mSDsluCounter, 11948 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:07:16,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14942 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 14:07:16,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82630 states. [2022-07-12 14:07:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82630 to 82630. [2022-07-12 14:07:18,994 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) [2022-07-12 14:07:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82630 states to 82630 states and 116069 transitions. [2022-07-12 14:07:19,553 INFO L78 Accepts]: Start accepts. Automaton has 82630 states and 116069 transitions. Word has length 209 [2022-07-12 14:07:19,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:07:19,554 INFO L495 AbstractCegarLoop]: Abstraction has 82630 states and 116069 transitions. [2022-07-12 14:07:19,555 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-07-12 14:07:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 82630 states and 116069 transitions. [2022-07-12 14:07:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 14:07:19,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:07:19,598 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 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] [2022-07-12 14:07:19,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 14:07:19,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:07:19,812 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:07:19,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:07:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash 903816684, now seen corresponding path program 3 times [2022-07-12 14:07:19,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:07:19,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067895441] [2022-07-12 14:07:19,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-12 14:07:19,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:07:19,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:07:19,815 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:07:19,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 14:07:20,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-07-12 14:07:20,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:07:21,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2130 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 14:07:21,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:07:21,540 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-07-12 14:07:21,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:07:21,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:07:21,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067895441] [2022-07-12 14:07:21,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067895441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:07:21,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:07:21,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 14:07:21,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678320789] [2022-07-12 14:07:21,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:07:21,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 14:07:21,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:07:21,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 14:07:21,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 14:07:21,542 INFO L87 Difference]: Start difference. First operand 82630 states and 116069 transitions. Second operand has 7 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-12 14:07:24,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:07:24,152 INFO L93 Difference]: Finished difference Result 86215 states and 121546 transitions. [2022-07-12 14:07:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:07:24,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (18), 4 states have call predecessors, (18), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 210 [2022-07-12 14:07:24,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted.