./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.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 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:40:34,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:40:34,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:40:34,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:40:34,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:40:34,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:40:34,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:40:34,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:40:34,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:40:34,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:40:34,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:40:34,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:40:34,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:40:34,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:40:34,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:40:34,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:40:34,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:40:34,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:40:34,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:40:34,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:40:34,600 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:40:34,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:40:34,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:40:34,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:40:34,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:40:34,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:40:34,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:40:34,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:40:34,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:40:34,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:40:34,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:40:34,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:40:34,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:40:34,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:40:34,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:40:34,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:40:34,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:40:34,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:40:34,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:40:34,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:40:34,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:40:34,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:40:34,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:40:34,642 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:40:34,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:40:34,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:40:34,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:40:34,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:40:34,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:40:34,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:40:34,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:40:34,645 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:40:34,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:40:34,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:40:34,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:40:34,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:40:34,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:40:34,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:40:34,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:40:34,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:40:34,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:40:34,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:40:34,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:40:34,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:40:34,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:40:34,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:40:34,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:40:34,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:40:34,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:40:34,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:40:34,649 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:40:34,649 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:40:34,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:40:34,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2022-07-19 23:40:34,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:40:34,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:40:34,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:40:34,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:40:34,849 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:40:34,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-19 23:40:34,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90103a958/3795541c7ed441639e3ac09a83e4087d/FLAG540a08fb5 [2022-07-19 23:40:35,522 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:40:35,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-19 23:40:35,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90103a958/3795541c7ed441639e3ac09a83e4087d/FLAG540a08fb5 [2022-07-19 23:40:35,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90103a958/3795541c7ed441639e3ac09a83e4087d [2022-07-19 23:40:35,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:40:35,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:40:35,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:40:35,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:40:35,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:40:35,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:40:35" (1/1) ... [2022-07-19 23:40:35,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a7004a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:35, skipping insertion in model container [2022-07-19 23:40:35,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:40:35" (1/1) ... [2022-07-19 23:40:35,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:40:35,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:40:36,451 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-19 23:40:37,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:40:37,264 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:40:37,396 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-19 23:40:37,500 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: len = len & 4294967294U [10012] 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) [2022-07-19 23:40:37,508 INFO L158 Benchmark]: Toolchain (without parser) took 1828.66ms. Allocated memory was 98.6MB in the beginning and 174.1MB in the end (delta: 75.5MB). Free memory was 58.2MB in the beginning and 106.7MB in the end (delta: -48.5MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2022-07-19 23:40:37,509 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 23:40:37,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1824.53ms. Allocated memory was 98.6MB in the beginning and 174.1MB in the end (delta: 75.5MB). Free memory was 58.0MB in the beginning and 106.7MB in the end (delta: -48.7MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2022-07-19 23:40:37,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1824.53ms. Allocated memory was 98.6MB in the beginning and 174.1MB in the end (delta: 75.5MB). Free memory was 58.0MB in the beginning and 106.7MB in the end (delta: -48.7MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: len = len & 4294967294U [10012] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: len = len & 4294967294U [10012]: 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.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 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:40:39,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:40:39,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:40:39,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:40:39,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:40:39,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:40:39,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:40:39,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:40:39,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:40:39,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:40:39,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:40:39,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:40:39,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:40:39,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:40:39,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:40:39,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:40:39,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:40:39,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:40:39,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:40:39,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:40:39,111 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:40:39,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:40:39,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:40:39,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:40:39,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:40:39,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:40:39,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:40:39,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:40:39,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:40:39,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:40:39,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:40:39,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:40:39,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:40:39,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:40:39,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:40:39,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:40:39,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:40:39,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:40:39,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:40:39,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:40:39,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:40:39,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:40:39,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 23:40:39,164 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:40:39,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:40:39,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:40:39,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:40:39,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:40:39,167 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:40:39,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:40:39,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:40:39,168 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:40:39,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:40:39,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:40:39,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:40:39,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:40:39,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:40:39,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 23:40:39,170 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 23:40:39,170 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 23:40:39,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:40:39,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:40:39,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:40:39,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:40:39,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:40:39,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:40:39,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:40:39,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:40:39,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:40:39,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:40:39,171 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 23:40:39,172 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 23:40:39,172 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:40:39,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:40:39,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:40:39,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 23:40:39,173 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2022-07-19 23:40:39,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:40:39,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:40:39,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:40:39,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:40:39,487 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:40:39,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-19 23:40:39,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf000148/c955941b7efd44359819903ee89e1989/FLAG8baee1ff2 [2022-07-19 23:40:40,188 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:40:40,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-19 23:40:40,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf000148/c955941b7efd44359819903ee89e1989/FLAG8baee1ff2 [2022-07-19 23:40:40,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf000148/c955941b7efd44359819903ee89e1989 [2022-07-19 23:40:40,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:40:40,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:40:40,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:40:40,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:40:40,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:40:40,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:40:40" (1/1) ... [2022-07-19 23:40:40,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d83a6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:40, skipping insertion in model container [2022-07-19 23:40:40,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:40:40" (1/1) ... [2022-07-19 23:40:40,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:40:40,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:40:41,540 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-19 23:40:42,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:40:42,507 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 23:40:42,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:40:42,677 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-19 23:40:42,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:40:42,861 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:40:42,978 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-19 23:40:43,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:40:43,342 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:40:43,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43 WrapperNode [2022-07-19 23:40:43,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:40:43,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:40:43,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:40:43,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:40:43,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,581 INFO L137 Inliner]: procedures = 262, calls = 2608, calls flagged for inlining = 135, calls inlined = 132, statements flattened = 6145 [2022-07-19 23:40:43,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:40:43,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:40:43,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:40:43,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:40:43,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:40:43,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:40:43,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:40:43,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:40:43,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (1/1) ... [2022-07-19 23:40:43,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:40:43,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:40:43,824 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) [2022-07-19 23:40:43,843 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 [2022-07-19 23:40:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2022-07-19 23:40:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2022-07-19 23:40:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 23:40:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2022-07-19 23:40:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2022-07-19 23:40:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-19 23:40:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 23:40:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:40:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-19 23:40:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:40:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:40:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:40:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-19 23:40:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-19 23:40:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-07-19 23:40:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-07-19 23:40:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:40:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:40:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-07-19 23:40:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-07-19 23:40:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-07-19 23:40:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-07-19 23:40:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-19 23:40:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-19 23:40:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-19 23:40:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-19 23:40:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2022-07-19 23:40:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2022-07-19 23:40:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_map_pci_memory [2022-07-19 23:40:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_map_pci_memory [2022-07-19 23:40:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2022-07-19 23:40:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2022-07-19 23:40:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:40:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:40:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-19 23:40:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-19 23:40:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:40:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:40:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:40:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:40:43,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-19 23:40:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-19 23:40:43,861 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:40:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:40:43,861 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_process_event_ready [2022-07-19 23:40:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_process_event_ready [2022-07-19 23:40:43,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:40:43,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:40:43,862 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-19 23:40:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-19 23:40:43,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-19 23:40:43,863 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:40:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:40:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unmap_pci_memory [2022-07-19 23:40:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unmap_pci_memory [2022-07-19 23:40:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-19 23:40:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 23:40:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 23:40:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:40:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 23:40:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:40:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_clean_pcie_ring_buf [2022-07-19 23:40:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_clean_pcie_ring_buf [2022-07-19 23:40:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_dev_wakeup_delay [2022-07-19 23:40:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_dev_wakeup_delay [2022-07-19 23:40:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-19 23:40:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 23:40:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-19 23:40:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-19 23:40:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_ok_to_access_hw [2022-07-19 23:40:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_ok_to_access_hw [2022-07-19 23:40:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:40:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:40:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_DMA_ADDR [2022-07-19 23:40:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_DMA_ADDR [2022-07-19 23:40:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:40:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:40:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-19 23:40:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-19 23:40:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_resume [2022-07-19 23:40:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_resume [2022-07-19 23:40:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_txbd_ring [2022-07-19 23:40:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_txbd_ring [2022-07-19 23:40:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_suspend [2022-07-19 23:40:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_suspend [2022-07-19 23:40:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-19 23:40:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-19 23:40:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:40:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:40:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_enable_host_int [2022-07-19 23:40:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_enable_host_int [2022-07-19 23:40:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_disable_host_int [2022-07-19 23:40:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_disable_host_int [2022-07-19 23:40:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_not_full [2022-07-19 23:40:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_not_full [2022-07-19 23:40:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-07-19 23:40:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-07-19 23:40:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_evtbd_ring [2022-07-19 23:40:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_evtbd_ring [2022-07-19 23:40:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:40:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:40:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-19 23:40:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-19 23:40:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-19 23:40:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-19 23:40:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-19 23:40:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-19 23:40:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-19 23:40:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-19 23:40:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-19 23:40:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-19 23:40:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-19 23:40:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-19 23:40:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-19 23:40:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-19 23:40:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:40:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:40:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:40:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-19 23:40:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-19 23:40:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_remove [2022-07-19 23:40:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_remove [2022-07-19 23:40:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:40:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2022-07-19 23:40:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2022-07-19 23:40:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_rxbd_ring [2022-07-19 23:40:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_rxbd_ring [2022-07-19 23:40:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:40:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-19 23:40:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-19 23:40:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-19 23:40:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-19 23:40:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-19 23:40:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-19 23:40:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-19 23:40:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_PACB [2022-07-19 23:40:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_PACB [2022-07-19 23:40:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-19 23:40:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-19 23:40:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-19 23:40:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-19 23:40:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:40:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:40:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2022-07-19 23:40:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2022-07-19 23:40:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_empty [2022-07-19 23:40:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_empty [2022-07-19 23:40:44,484 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:40:44,486 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:40:52,555 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:41:42,510 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:41:42,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:41:42,534 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 23:41:42,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:41:42 BoogieIcfgContainer [2022-07-19 23:41:42,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:41:42,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:41:42,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:41:42,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:41:42,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:40:40" (1/3) ... [2022-07-19 23:41:42,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289c1a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:41:42, skipping insertion in model container [2022-07-19 23:41:42,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:43" (2/3) ... [2022-07-19 23:41:42,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289c1a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:41:42, skipping insertion in model container [2022-07-19 23:41:42,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:41:42" (3/3) ... [2022-07-19 23:41:42,544 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-19 23:41:42,555 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:41:42,555 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:41:42,620 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:41:42,624 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@4515fc1a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5175cfad [2022-07-19 23:41:42,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:41:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 1562 states, 1189 states have (on average 1.4137931034482758) internal successors, (1681), 1210 states have internal predecessors, (1681), 315 states have call successors, (315), 57 states have call predecessors, (315), 56 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2022-07-19 23:41:42,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-19 23:41:42,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:42,643 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:41:42,644 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:42,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1790507018, now seen corresponding path program 1 times [2022-07-19 23:41:42,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:41:42,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775992109] [2022-07-19 23:41:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:42,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:41:42,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:41:42,662 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) [2022-07-19 23:41:42,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 23:41:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:43,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1381 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:41:43,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-19 23:41:43,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:41:43,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:41:43,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775992109] [2022-07-19 23:41:43,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775992109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:43,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:41:43,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:41:43,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201083544] [2022-07-19 23:41:43,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:43,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:41:43,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:41:43,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:41:43,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:41:43,972 INFO L87 Difference]: Start difference. First operand has 1562 states, 1189 states have (on average 1.4137931034482758) internal successors, (1681), 1210 states have internal predecessors, (1681), 315 states have call successors, (315), 57 states have call predecessors, (315), 56 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:41:44,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:44,914 INFO L93 Difference]: Finished difference Result 4627 states and 6891 transitions. [2022-07-19 23:41:44,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:41:44,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-07-19 23:41:44,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:44,947 INFO L225 Difference]: With dead ends: 4627 [2022-07-19 23:41:44,948 INFO L226 Difference]: Without dead ends: 3042 [2022-07-19 23:41:44,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:41:44,967 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 2242 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:44,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 4868 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 23:41:44,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2022-07-19 23:41:45,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3042. [2022-07-19 23:41:45,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2325 states have (on average 1.4055913978494623) internal successors, (3268), 2349 states have internal predecessors, (3268), 606 states have call successors, (606), 111 states have call predecessors, (606), 110 states have return successors, (605), 605 states have call predecessors, (605), 605 states have call successors, (605) [2022-07-19 23:41:45,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4479 transitions. [2022-07-19 23:41:45,171 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4479 transitions. Word has length 39 [2022-07-19 23:41:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:45,172 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4479 transitions. [2022-07-19 23:41:45,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:41:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4479 transitions. [2022-07-19 23:41:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 23:41:45,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:45,180 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:41:45,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 23:41:45,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:41:45,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:45,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1277499630, now seen corresponding path program 1 times [2022-07-19 23:41:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:41:45,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82244908] [2022-07-19 23:41:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:45,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:41:45,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:41:45,408 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) [2022-07-19 23:41:45,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 23:41:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:46,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 23:41:46,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-19 23:41:47,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:41:47,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:41:47,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82244908] [2022-07-19 23:41:47,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82244908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:47,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:41:47,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:41:47,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093077334] [2022-07-19 23:41:47,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:47,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:41:47,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:41:47,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:41:47,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:41:47,075 INFO L87 Difference]: Start difference. First operand 3042 states and 4479 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 23:41:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:52,945 INFO L93 Difference]: Finished difference Result 6992 states and 10407 transitions. [2022-07-19 23:41:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:41:52,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-07-19 23:41:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:52,965 INFO L225 Difference]: With dead ends: 6992 [2022-07-19 23:41:52,965 INFO L226 Difference]: Without dead ends: 3960 [2022-07-19 23:41:52,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:41:52,979 INFO L413 NwaCegarLoop]: 3489 mSDtfsCounter, 1089 mSDsluCounter, 12717 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 16206 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:52,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 16206 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-07-19 23:41:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-07-19 23:41:53,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3042. [2022-07-19 23:41:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2325 states have (on average 1.4051612903225807) internal successors, (3267), 2349 states have internal predecessors, (3267), 606 states have call successors, (606), 111 states have call predecessors, (606), 110 states have return successors, (605), 605 states have call predecessors, (605), 605 states have call successors, (605) [2022-07-19 23:41:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4478 transitions. [2022-07-19 23:41:53,135 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4478 transitions. Word has length 49 [2022-07-19 23:41:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:53,136 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4478 transitions. [2022-07-19 23:41:53,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 23:41:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4478 transitions. [2022-07-19 23:41:53,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 23:41:53,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:53,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:41:53,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:53,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:41:53,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 266382380, now seen corresponding path program 1 times [2022-07-19 23:41:53,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:41:53,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294577866] [2022-07-19 23:41:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:53,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:41:53,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:41:53,372 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) [2022-07-19 23:41:53,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 23:41:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:41:54,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-19 23:41:55,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:41:55,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:41:55,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294577866] [2022-07-19 23:41:55,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294577866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:55,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:41:55,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:41:55,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680278192] [2022-07-19 23:41:55,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:55,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:41:55,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:41:55,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:41:55,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:41:55,265 INFO L87 Difference]: Start difference. First operand 3042 states and 4478 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 23:41:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:55,731 INFO L93 Difference]: Finished difference Result 9103 states and 13430 transitions. [2022-07-19 23:41:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:41:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-07-19 23:41:55,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:55,766 INFO L225 Difference]: With dead ends: 9103 [2022-07-19 23:41:55,766 INFO L226 Difference]: Without dead ends: 6062 [2022-07-19 23:41:55,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:41:55,781 INFO L413 NwaCegarLoop]: 2701 mSDtfsCounter, 2241 mSDsluCounter, 7660 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 10361 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:55,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 10361 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:41:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2022-07-19 23:41:55,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 6062. [2022-07-19 23:41:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 4633 states have (on average 1.4055687459529462) internal successors, (6512), 4681 states have internal predecessors, (6512), 1208 states have call successors, (1208), 221 states have call predecessors, (1208), 220 states have return successors, (1219), 1207 states have call predecessors, (1219), 1207 states have call successors, (1219) [2022-07-19 23:41:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 8939 transitions. [2022-07-19 23:41:55,986 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 8939 transitions. Word has length 49 [2022-07-19 23:41:55,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:55,986 INFO L495 AbstractCegarLoop]: Abstraction has 6062 states and 8939 transitions. [2022-07-19 23:41:55,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 23:41:55,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 8939 transitions. [2022-07-19 23:41:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-19 23:41:55,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:55,997 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:41:56,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:56,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:41:56,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:56,220 INFO L85 PathProgramCache]: Analyzing trace with hash -969454711, now seen corresponding path program 1 times [2022-07-19 23:41:56,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:41:56,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333131792] [2022-07-19 23:41:56,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:56,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:41:56,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:41:56,224 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) [2022-07-19 23:41:56,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 23:41:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:57,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 2135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:41:57,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:57,811 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-19 23:41:57,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:41:57,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:41:57,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333131792] [2022-07-19 23:41:57,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333131792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:57,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:41:57,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:41:57,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182025663] [2022-07-19 23:41:57,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:57,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:41:57,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:41:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:41:57,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:41:57,813 INFO L87 Difference]: Start difference. First operand 6062 states and 8939 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:41:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:59,077 INFO L93 Difference]: Finished difference Result 13455 states and 19819 transitions. [2022-07-19 23:41:59,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:41:59,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2022-07-19 23:41:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:59,113 INFO L225 Difference]: With dead ends: 13455 [2022-07-19 23:41:59,113 INFO L226 Difference]: Without dead ends: 7403 [2022-07-19 23:41:59,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:41:59,171 INFO L413 NwaCegarLoop]: 2320 mSDtfsCounter, 519 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:59,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 4530 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 23:41:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7403 states. [2022-07-19 23:41:59,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7403 to 7391. [2022-07-19 23:41:59,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 5740 states have (on average 1.418815331010453) internal successors, (8144), 5788 states have internal predecessors, (8144), 1361 states have call successors, (1361), 290 states have call predecessors, (1361), 289 states have return successors, (1372), 1360 states have call predecessors, (1372), 1360 states have call successors, (1372) [2022-07-19 23:41:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 10877 transitions. [2022-07-19 23:41:59,394 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 10877 transitions. Word has length 117 [2022-07-19 23:41:59,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:59,396 INFO L495 AbstractCegarLoop]: Abstraction has 7391 states and 10877 transitions. [2022-07-19 23:41:59,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:41:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 10877 transitions. [2022-07-19 23:41:59,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-19 23:41:59,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:59,416 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:41:59,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:59,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:41:59,623 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:59,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:59,624 INFO L85 PathProgramCache]: Analyzing trace with hash 104842639, now seen corresponding path program 1 times [2022-07-19 23:41:59,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:41:59,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316309517] [2022-07-19 23:41:59,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:59,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:41:59,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:41:59,627 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) [2022-07-19 23:41:59,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 23:42:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:01,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:42:01,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-19 23:42:01,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:01,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:01,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316309517] [2022-07-19 23:42:01,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316309517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:01,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:01,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:42:01,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161547840] [2022-07-19 23:42:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:01,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:42:01,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:42:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:42:01,539 INFO L87 Difference]: Start difference. First operand 7391 states and 10877 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:42:05,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:05,581 INFO L93 Difference]: Finished difference Result 15179 states and 22309 transitions. [2022-07-19 23:42:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:42:05,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 157 [2022-07-19 23:42:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:05,633 INFO L225 Difference]: With dead ends: 15179 [2022-07-19 23:42:05,634 INFO L226 Difference]: Without dead ends: 7795 [2022-07-19 23:42:05,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:42:05,660 INFO L413 NwaCegarLoop]: 4380 mSDtfsCounter, 2244 mSDsluCounter, 11024 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 15404 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:05,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 15404 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-19 23:42:05,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7795 states. [2022-07-19 23:42:05,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7795 to 7430. [2022-07-19 23:42:05,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5770 states have (on average 1.416637781629116) internal successors, (8174), 5821 states have internal predecessors, (8174), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 292 states have return successors, (1378), 1363 states have call predecessors, (1378), 1366 states have call successors, (1378) [2022-07-19 23:42:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10919 transitions. [2022-07-19 23:42:05,927 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10919 transitions. Word has length 157 [2022-07-19 23:42:05,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:05,927 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10919 transitions. [2022-07-19 23:42:05,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:42:05,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10919 transitions. [2022-07-19 23:42:05,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-19 23:42:05,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:05,941 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:06,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:06,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:06,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:06,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:06,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1933743724, now seen corresponding path program 1 times [2022-07-19 23:42:06,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:06,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951233838] [2022-07-19 23:42:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:06,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:06,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:06,159 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) [2022-07-19 23:42:06,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 23:42:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:08,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 23:42:08,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-07-19 23:42:08,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:08,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:08,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951233838] [2022-07-19 23:42:08,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951233838] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:08,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:08,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:42:08,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296840133] [2022-07-19 23:42:08,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:08,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:42:08,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:08,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:42:08,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:42:08,448 INFO L87 Difference]: Start difference. First operand 7430 states and 10919 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 23:42:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:12,798 INFO L93 Difference]: Finished difference Result 15001 states and 22076 transitions. [2022-07-19 23:42:12,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:42:12,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 163 [2022-07-19 23:42:12,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:12,827 INFO L225 Difference]: With dead ends: 15001 [2022-07-19 23:42:12,827 INFO L226 Difference]: Without dead ends: 7588 [2022-07-19 23:42:12,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:42:12,851 INFO L413 NwaCegarLoop]: 2469 mSDtfsCounter, 1080 mSDsluCounter, 8560 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 11029 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:12,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 11029 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-19 23:42:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7588 states. [2022-07-19 23:42:13,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7588 to 7430. [2022-07-19 23:42:13,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5770 states have (on average 1.415944540727903) internal successors, (8170), 5821 states have internal predecessors, (8170), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 292 states have return successors, (1378), 1363 states have call predecessors, (1378), 1366 states have call successors, (1378) [2022-07-19 23:42:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10915 transitions. [2022-07-19 23:42:13,148 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10915 transitions. Word has length 163 [2022-07-19 23:42:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:13,149 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10915 transitions. [2022-07-19 23:42:13,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 23:42:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10915 transitions. [2022-07-19 23:42:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-19 23:42:13,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:13,160 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:13,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:13,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:13,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:13,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:13,380 INFO L85 PathProgramCache]: Analyzing trace with hash 639220886, now seen corresponding path program 1 times [2022-07-19 23:42:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:13,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593091851] [2022-07-19 23:42:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:13,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:13,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:13,383 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) [2022-07-19 23:42:13,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 23:42:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:15,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 23:42:15,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-19 23:42:15,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:15,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:15,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593091851] [2022-07-19 23:42:15,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593091851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:15,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:15,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:42:15,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705466269] [2022-07-19 23:42:15,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:15,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:42:15,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:15,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:42:15,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:42:15,841 INFO L87 Difference]: Start difference. First operand 7430 states and 10915 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 23:42:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:19,517 INFO L93 Difference]: Finished difference Result 18921 states and 28318 transitions. [2022-07-19 23:42:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:42:19,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 163 [2022-07-19 23:42:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:19,555 INFO L225 Difference]: With dead ends: 18921 [2022-07-19 23:42:19,556 INFO L226 Difference]: Without dead ends: 11508 [2022-07-19 23:42:19,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:42:19,578 INFO L413 NwaCegarLoop]: 3534 mSDtfsCounter, 1085 mSDsluCounter, 12788 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 16322 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:19,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 16322 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-19 23:42:19,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11508 states. [2022-07-19 23:42:19,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11508 to 7430. [2022-07-19 23:42:19,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5770 states have (on average 1.4152512998266897) internal successors, (8166), 5821 states have internal predecessors, (8166), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 292 states have return successors, (1378), 1363 states have call predecessors, (1378), 1366 states have call successors, (1378) [2022-07-19 23:42:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10911 transitions. [2022-07-19 23:42:19,850 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10911 transitions. Word has length 163 [2022-07-19 23:42:19,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:19,851 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10911 transitions. [2022-07-19 23:42:19,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 23:42:19,851 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10911 transitions. [2022-07-19 23:42:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-19 23:42:19,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:19,862 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:19,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:20,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:20,075 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:20,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:20,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1694171752, now seen corresponding path program 1 times [2022-07-19 23:42:20,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:20,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454666781] [2022-07-19 23:42:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:20,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:20,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:20,079 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) [2022-07-19 23:42:20,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 23:42:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:22,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:42:22,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:22,511 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-19 23:42:22,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:22,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:22,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454666781] [2022-07-19 23:42:22,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454666781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:22,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:22,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:42:22,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707997157] [2022-07-19 23:42:22,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:22,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:42:22,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:42:22,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:42:22,513 INFO L87 Difference]: Start difference. First operand 7430 states and 10911 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 23:42:22,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:22,905 INFO L93 Difference]: Finished difference Result 14923 states and 22009 transitions. [2022-07-19 23:42:22,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:42:22,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 163 [2022-07-19 23:42:22,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:22,975 INFO L225 Difference]: With dead ends: 14923 [2022-07-19 23:42:22,975 INFO L226 Difference]: Without dead ends: 7510 [2022-07-19 23:42:23,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:42:23,026 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 6 mSDsluCounter, 6788 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9057 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:23,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9057 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 23:42:23,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7510 states. [2022-07-19 23:42:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7510 to 7462. [2022-07-19 23:42:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 5794 states have (on average 1.4135312392129789) internal successors, (8190), 5845 states have internal predecessors, (8190), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 300 states have return successors, (1442), 1371 states have call predecessors, (1442), 1366 states have call successors, (1442) [2022-07-19 23:42:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 10999 transitions. [2022-07-19 23:42:23,351 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 10999 transitions. Word has length 163 [2022-07-19 23:42:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:23,352 INFO L495 AbstractCegarLoop]: Abstraction has 7462 states and 10999 transitions. [2022-07-19 23:42:23,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 23:42:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 10999 transitions. [2022-07-19 23:42:23,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-19 23:42:23,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:23,363 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:23,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:23,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:23,580 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:23,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:23,580 INFO L85 PathProgramCache]: Analyzing trace with hash -320678795, now seen corresponding path program 1 times [2022-07-19 23:42:23,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:23,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909477951] [2022-07-19 23:42:23,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:23,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:23,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:23,583 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) [2022-07-19 23:42:23,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-19 23:42:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:25,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 2302 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 23:42:25,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-19 23:42:26,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:26,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:26,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909477951] [2022-07-19 23:42:26,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909477951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:26,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:26,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:42:26,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688456051] [2022-07-19 23:42:26,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:26,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:42:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:26,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:42:26,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:42:26,094 INFO L87 Difference]: Start difference. First operand 7462 states and 10999 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 23:42:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:26,377 INFO L93 Difference]: Finished difference Result 14933 states and 22053 transitions. [2022-07-19 23:42:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:42:26,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 165 [2022-07-19 23:42:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:26,402 INFO L225 Difference]: With dead ends: 14933 [2022-07-19 23:42:26,402 INFO L226 Difference]: Without dead ends: 7488 [2022-07-19 23:42:26,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:42:26,421 INFO L413 NwaCegarLoop]: 2267 mSDtfsCounter, 2 mSDsluCounter, 6788 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9055 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:26,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9055 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:42:26,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2022-07-19 23:42:26,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7482. [2022-07-19 23:42:26,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7482 states, 5808 states have (on average 1.412534435261708) internal successors, (8204), 5861 states have internal predecessors, (8204), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 306 states have return successors, (1456), 1375 states have call predecessors, (1456), 1366 states have call successors, (1456) [2022-07-19 23:42:26,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7482 states to 7482 states and 11027 transitions. [2022-07-19 23:42:26,679 INFO L78 Accepts]: Start accepts. Automaton has 7482 states and 11027 transitions. Word has length 165 [2022-07-19 23:42:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:26,680 INFO L495 AbstractCegarLoop]: Abstraction has 7482 states and 11027 transitions. [2022-07-19 23:42:26,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 23:42:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7482 states and 11027 transitions. [2022-07-19 23:42:26,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-19 23:42:26,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:26,690 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:26,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:26,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:26,897 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:26,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1424768948, now seen corresponding path program 1 times [2022-07-19 23:42:26,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:26,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302554890] [2022-07-19 23:42:26,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:26,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:26,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:26,900 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) [2022-07-19 23:42:26,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-19 23:42:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:29,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-19 23:42:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-19 23:42:30,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:30,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:30,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302554890] [2022-07-19 23:42:30,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302554890] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:30,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:30,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 23:42:30,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171707990] [2022-07-19 23:42:30,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:30,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 23:42:30,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:30,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 23:42:30,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-19 23:42:30,564 INFO L87 Difference]: Start difference. First operand 7482 states and 11027 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 23:42:33,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:33,231 INFO L93 Difference]: Finished difference Result 19059 states and 28694 transitions. [2022-07-19 23:42:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 23:42:33,233 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2022-07-19 23:42:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:33,267 INFO L225 Difference]: With dead ends: 19059 [2022-07-19 23:42:33,268 INFO L226 Difference]: Without dead ends: 11594 [2022-07-19 23:42:33,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-19 23:42:33,286 INFO L413 NwaCegarLoop]: 3645 mSDtfsCounter, 1089 mSDsluCounter, 38700 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 42345 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:33,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 42345 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 23:42:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11594 states. [2022-07-19 23:42:33,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 7506. [2022-07-19 23:42:33,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 5826 states have (on average 1.4105732921386887) internal successors, (8218), 5877 states have internal predecessors, (8218), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-19 23:42:33,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 11063 transitions. [2022-07-19 23:42:33,585 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 11063 transitions. Word has length 172 [2022-07-19 23:42:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:33,586 INFO L495 AbstractCegarLoop]: Abstraction has 7506 states and 11063 transitions. [2022-07-19 23:42:33,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 23:42:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 11063 transitions. [2022-07-19 23:42:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-19 23:42:33,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:33,600 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:33,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-19 23:42:33,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:33,816 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:33,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:33,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1685717248, now seen corresponding path program 1 times [2022-07-19 23:42:33,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:33,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504888800] [2022-07-19 23:42:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:33,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:33,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:33,819 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) [2022-07-19 23:42:33,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-19 23:42:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:36,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 2353 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:42:36,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-19 23:42:36,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:36,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:36,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504888800] [2022-07-19 23:42:36,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504888800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:36,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:36,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:42:36,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299059265] [2022-07-19 23:42:36,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:36,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:42:36,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:36,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:42:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:42:36,408 INFO L87 Difference]: Start difference. First operand 7506 states and 11063 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 23:42:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:36,836 INFO L93 Difference]: Finished difference Result 19365 states and 29130 transitions. [2022-07-19 23:42:36,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:42:36,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2022-07-19 23:42:36,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:36,876 INFO L225 Difference]: With dead ends: 19365 [2022-07-19 23:42:36,877 INFO L226 Difference]: Without dead ends: 11876 [2022-07-19 23:42:36,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:42:36,894 INFO L413 NwaCegarLoop]: 3676 mSDtfsCounter, 1075 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 6130 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:36,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 6130 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:42:36,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11876 states. [2022-07-19 23:42:37,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11876 to 7510. [2022-07-19 23:42:37,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 5830 states have (on average 1.4102915951972557) internal successors, (8222), 5881 states have internal predecessors, (8222), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-19 23:42:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11067 transitions. [2022-07-19 23:42:37,244 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11067 transitions. Word has length 178 [2022-07-19 23:42:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:37,245 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 11067 transitions. [2022-07-19 23:42:37,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 23:42:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11067 transitions. [2022-07-19 23:42:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-19 23:42:37,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:37,256 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:37,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:37,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:37,472 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash 711929151, now seen corresponding path program 1 times [2022-07-19 23:42:37,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:37,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786722599] [2022-07-19 23:42:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:37,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:37,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:37,475 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) [2022-07-19 23:42:37,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-19 23:42:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:40,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 23:42:40,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:40,387 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-07-19 23:42:40,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:40,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:40,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786722599] [2022-07-19 23:42:40,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786722599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:40,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:40,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:42:40,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307790281] [2022-07-19 23:42:40,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:40,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:42:40,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:40,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:42:40,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:42:40,388 INFO L87 Difference]: Start difference. First operand 7510 states and 11067 transitions. Second operand has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:42:44,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:44,028 INFO L93 Difference]: Finished difference Result 19089 states and 28686 transitions. [2022-07-19 23:42:44,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:42:44,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-07-19 23:42:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:44,104 INFO L225 Difference]: With dead ends: 19089 [2022-07-19 23:42:44,104 INFO L226 Difference]: Without dead ends: 11596 [2022-07-19 23:42:44,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:42:44,117 INFO L413 NwaCegarLoop]: 3536 mSDtfsCounter, 1005 mSDsluCounter, 12895 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 16431 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:44,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 16431 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-19 23:42:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11596 states. [2022-07-19 23:42:44,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11596 to 7510. [2022-07-19 23:42:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 5830 states have (on average 1.4096054888507719) internal successors, (8218), 5881 states have internal predecessors, (8218), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-19 23:42:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11063 transitions. [2022-07-19 23:42:44,446 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11063 transitions. Word has length 182 [2022-07-19 23:42:44,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:44,447 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 11063 transitions. [2022-07-19 23:42:44,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:42:44,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11063 transitions. [2022-07-19 23:42:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-19 23:42:44,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:44,459 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:44,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:44,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:44,679 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash 773968765, now seen corresponding path program 1 times [2022-07-19 23:42:44,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:44,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449437444] [2022-07-19 23:42:44,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:44,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:44,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:44,683 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) [2022-07-19 23:42:44,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-19 23:42:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:48,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:42:48,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-19 23:42:48,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:48,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:48,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449437444] [2022-07-19 23:42:48,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449437444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:48,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:48,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:42:48,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481534605] [2022-07-19 23:42:48,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:48,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:42:48,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:48,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:42:48,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:42:48,360 INFO L87 Difference]: Start difference. First operand 7510 states and 11063 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:42:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:50,524 INFO L93 Difference]: Finished difference Result 23455 states and 35691 transitions. [2022-07-19 23:42:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:42:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-07-19 23:42:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:50,569 INFO L225 Difference]: With dead ends: 23455 [2022-07-19 23:42:50,569 INFO L226 Difference]: Without dead ends: 15962 [2022-07-19 23:42:50,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:42:50,587 INFO L413 NwaCegarLoop]: 4849 mSDtfsCounter, 2087 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 10949 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:50,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 10949 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 23:42:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-07-19 23:42:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 7518. [2022-07-19 23:42:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 5838 states have (on average 1.4090441932168551) internal successors, (8226), 5889 states have internal predecessors, (8226), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-19 23:42:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 11071 transitions. [2022-07-19 23:42:51,034 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 11071 transitions. Word has length 182 [2022-07-19 23:42:51,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:51,035 INFO L495 AbstractCegarLoop]: Abstraction has 7518 states and 11071 transitions. [2022-07-19 23:42:51,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:42:51,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 11071 transitions. [2022-07-19 23:42:51,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-19 23:42:51,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:51,048 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:51,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:51,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:51,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:51,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1073399476, now seen corresponding path program 1 times [2022-07-19 23:42:51,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:51,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114304849] [2022-07-19 23:42:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:51,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:51,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:51,275 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) [2022-07-19 23:42:51,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-19 23:42:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:53,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:42:53,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-19 23:42:53,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:53,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:53,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114304849] [2022-07-19 23:42:53,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114304849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:53,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:53,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:42:53,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557429459] [2022-07-19 23:42:53,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:53,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:42:53,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:53,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:42:53,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:42:53,970 INFO L87 Difference]: Start difference. First operand 7518 states and 11071 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-19 23:42:54,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:54,794 INFO L93 Difference]: Finished difference Result 19121 states and 28714 transitions. [2022-07-19 23:42:54,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:42:54,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-19 23:42:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:54,828 INFO L225 Difference]: With dead ends: 19121 [2022-07-19 23:42:54,829 INFO L226 Difference]: Without dead ends: 11620 [2022-07-19 23:42:54,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:42:54,850 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 1070 mSDsluCounter, 9643 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 13294 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:54,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 13294 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 23:42:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2022-07-19 23:42:55,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 7518. [2022-07-19 23:42:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 5838 states have (on average 1.4083590270640631) internal successors, (8222), 5889 states have internal predecessors, (8222), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-19 23:42:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 11067 transitions. [2022-07-19 23:42:55,281 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 11067 transitions. Word has length 183 [2022-07-19 23:42:55,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:55,281 INFO L495 AbstractCegarLoop]: Abstraction has 7518 states and 11067 transitions. [2022-07-19 23:42:55,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-19 23:42:55,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 11067 transitions. [2022-07-19 23:42:55,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-19 23:42:55,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:55,291 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:55,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:55,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:55,508 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:55,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:55,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1941599003, now seen corresponding path program 1 times [2022-07-19 23:42:55,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:55,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173871779] [2022-07-19 23:42:55,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:55,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:55,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:55,511 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) [2022-07-19 23:42:55,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process