./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--ieee802154--mrf24j40.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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--ieee802154--mrf24j40.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 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:50:53,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:50:53,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:50:53,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:50:53,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:50:53,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:50:53,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:50:53,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:50:53,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:50:53,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:50:53,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:50:53,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:50:53,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:50:53,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:50:53,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:50:53,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:50:53,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:50:53,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:50:53,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:50:53,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:50:53,619 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:50:53,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:50:53,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:50:53,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:50:53,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:50:53,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:50:53,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:50:53,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:50:53,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:50:53,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:50:53,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:50:53,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:50:53,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:50:53,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:50:53,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:50:53,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:50:53,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:50:53,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:50:53,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:50:53,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:50:53,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:50:53,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:50:53,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:50:53,673 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:50:53,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:50:53,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:50:53,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:50:53,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:50:53,675 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:50:53,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:50:53,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:50:53,676 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:50:53,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:50:53,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:50:53,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:50:53,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:50:53,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:50:53,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:50:53,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:50:53,679 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:50:53,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:50:53,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:50:53,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:50:53,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:50:53,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:50:53,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:50:53,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:50:53,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:50:53,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:50:53,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:50:53,682 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:50:53,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:50:53,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:50:53,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2022-07-22 23:50:53,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:50:53,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:50:53,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:50:53,980 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:50:53,981 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:50:53,982 INFO L432 ainManager$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--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-22 23:50:54,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f905ec772/a8906aee90794e61846654819d4706e7/FLAG6856df0ae [2022-07-22 23:50:54,796 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:50:54,796 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-22 23:50:54,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f905ec772/a8906aee90794e61846654819d4706e7/FLAG6856df0ae [2022-07-22 23:50:54,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f905ec772/a8906aee90794e61846654819d4706e7 [2022-07-22 23:50:54,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:50:54,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:50:54,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:50:54,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:50:54,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:50:54,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:50:54" (1/1) ... [2022-07-22 23:50:54,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228fb0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:50:54, skipping insertion in model container [2022-07-22 23:50:54,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:50:54" (1/1) ... [2022-07-22 23:50:54,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:50:54,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:50:55,759 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-22 23:50:56,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:50:56,316 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:50:56,418 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-22 23:50:56,491 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: val = (unsigned int )val & 246U [6182] 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: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) [2022-07-22 23:50:56,500 INFO L158 Benchmark]: Toolchain (without parser) took 1625.45ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 65.0MB in the beginning and 55.5MB in the end (delta: 9.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-07-22 23:50:56,501 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 23:50:56,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1620.22ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 64.7MB in the beginning and 55.5MB in the end (delta: 9.2MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-07-22 23:50:56,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1620.22ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 64.7MB in the beginning and 55.5MB in the end (delta: 9.2MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = (unsigned int )val & 246U [6182] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = (unsigned int )val & 246U [6182]: 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--ieee802154--mrf24j40.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 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:50:58,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:50:58,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:50:58,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:50:58,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:50:58,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:50:58,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:50:58,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:50:58,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:50:58,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:50:58,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:50:58,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:50:58,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:50:58,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:50:58,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:50:58,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:50:58,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:50:58,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:50:58,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:50:58,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:50:58,698 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:50:58,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:50:58,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:50:58,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:50:58,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:50:58,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:50:58,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:50:58,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:50:58,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:50:58,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:50:58,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:50:58,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:50:58,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:50:58,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:50:58,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:50:58,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:50:58,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:50:58,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:50:58,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:50:58,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:50:58,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:50:58,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:50:58,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 23:50:58,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:50:58,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:50:58,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:50:58,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:50:58,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:50:58,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:50:58,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:50:58,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:50:58,796 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:50:58,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:50:58,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:50:58,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:50:58,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:50:58,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:50:58,798 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 23:50:58,799 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 23:50:58,799 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 23:50:58,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:50:58,800 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:50:58,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:50:58,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:50:58,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:50:58,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:50:58,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:50:58,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:50:58,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:50:58,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:50:58,802 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 23:50:58,802 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 23:50:58,802 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:50:58,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:50:58,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:50:58,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 23:50:58,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2022-07-22 23:50:59,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:50:59,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:50:59,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:50:59,208 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:50:59,211 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:50:59,214 INFO L432 ainManager$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--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-22 23:50:59,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7af4238c/5430b1b2b52144ffaec35765ae39fd1a/FLAGd4a63da8b [2022-07-22 23:51:00,161 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:51:00,162 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-22 23:51:00,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7af4238c/5430b1b2b52144ffaec35765ae39fd1a/FLAGd4a63da8b [2022-07-22 23:51:00,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7af4238c/5430b1b2b52144ffaec35765ae39fd1a [2022-07-22 23:51:00,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:51:00,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:51:00,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:51:00,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:51:00,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:51:00,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:51:00" (1/1) ... [2022-07-22 23:51:00,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad52bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:00, skipping insertion in model container [2022-07-22 23:51:00,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:51:00" (1/1) ... [2022-07-22 23:51:00,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:51:00,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:51:01,202 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-22 23:51:01,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:51:01,817 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-22 23:51:01,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:51:02,001 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-22 23:51:02,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:51:02,177 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:51:02,361 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2022-07-22 23:51:02,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:51:02,570 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:51:02,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02 WrapperNode [2022-07-22 23:51:02,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:51:02,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:51:02,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:51:02,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:51:02,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,761 INFO L137 Inliner]: procedures = 152, calls = 1066, calls flagged for inlining = 55, calls inlined = 52, statements flattened = 1815 [2022-07-22 23:51:02,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:51:02,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:51:02,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:51:02,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:51:02,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:51:02,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:51:02,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:51:02,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:51:02,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (1/1) ... [2022-07-22 23:51:02,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:51:02,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:51:02,961 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) [2022-07-22 23:51:02,970 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 [2022-07-22 23:51:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-22 23:51:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2022-07-22 23:51:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2022-07-22 23:51:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 23:51:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:51:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-22 23:51:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:51:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:51:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:51:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure write_long_reg [2022-07-22 23:51:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure write_long_reg [2022-07-22 23:51:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-07-22 23:51:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-07-22 23:51:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-22 23:51:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-22 23:51:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-22 23:51:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-22 23:51:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-07-22 23:51:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-07-22 23:51:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:51:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:51:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:51:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:51:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-22 23:51:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-22 23:51:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:51:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:51:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-22 23:51:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-22 23:51:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-22 23:51:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-22 23:51:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:51:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:51:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_set_channel [2022-07-22 23:51:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_set_channel [2022-07-22 23:51:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-07-22 23:51:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-07-22 23:51:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:51:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:51:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure write_short_reg [2022-07-22 23:51:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure write_short_reg [2022-07-22 23:51:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:51:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:51:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_unregister_device [2022-07-22 23:51:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_unregister_device [2022-07-22 23:51:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:51:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:51:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:51:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:51:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-22 23:51:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-22 23:51:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-22 23:51:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-22 23:51:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-07-22 23:51:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-07-22 23:51:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-22 23:51:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-22 23:51:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-22 23:51:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure read_short_reg [2022-07-22 23:51:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure read_short_reg [2022-07-22 23:51:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_filter [2022-07-22 23:51:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_filter [2022-07-22 23:51:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:51:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-22 23:51:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-22 23:51:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-22 23:51:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-22 23:51:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-22 23:51:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:51:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 23:51:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-22 23:51:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-22 23:51:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:51:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-22 23:51:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-22 23:51:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-07-22 23:51:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-07-22 23:51:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 23:51:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_tx [2022-07-22 23:51:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_tx [2022-07-22 23:51:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_isr [2022-07-22 23:51:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_isr [2022-07-22 23:51:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_ed [2022-07-22 23:51:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_ed [2022-07-22 23:51:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-22 23:51:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-22 23:51:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_free_device [2022-07-22 23:51:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_free_device [2022-07-22 23:51:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-22 23:51:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:51:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:51:03,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:51:03,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:51:03,567 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:51:03,570 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:51:06,050 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:51:38,743 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:51:38,763 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:51:38,763 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-22 23:51:38,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:51:38 BoogieIcfgContainer [2022-07-22 23:51:38,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:51:38,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:51:38,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:51:38,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:51:38,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:51:00" (1/3) ... [2022-07-22 23:51:38,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eebfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:51:38, skipping insertion in model container [2022-07-22 23:51:38,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:51:02" (2/3) ... [2022-07-22 23:51:38,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eebfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:51:38, skipping insertion in model container [2022-07-22 23:51:38,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:51:38" (3/3) ... [2022-07-22 23:51:38,776 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2022-07-22 23:51:38,788 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:51:38,788 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:51:38,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:51:38,870 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@79317ec2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5a97e1b8 [2022-07-22 23:51:38,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:51:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 621 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 453 states have internal predecessors, (601), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2022-07-22 23:51:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 23:51:38,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:38,893 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] [2022-07-22 23:51:38,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:38,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:38,897 INFO L85 PathProgramCache]: Analyzing trace with hash -829070541, now seen corresponding path program 1 times [2022-07-22 23:51:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:51:38,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643932362] [2022-07-22 23:51:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:51:38,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:51:38,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:51:38,910 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) [2022-07-22 23:51:38,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 23:51:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:39,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:51:39,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:51:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 23:51:39,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:51:39,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:51:39,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643932362] [2022-07-22 23:51:39,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643932362] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:51:39,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:51:39,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:51:39,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959698259] [2022-07-22 23:51:39,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:51:39,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:51:39,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:51:39,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:51:39,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:51:39,972 INFO L87 Difference]: Start difference. First operand has 621 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 453 states have internal predecessors, (601), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-07-22 23:51:42,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:51:42,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:51:42,558 INFO L93 Difference]: Finished difference Result 1823 states and 2771 transitions. [2022-07-22 23:51:42,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:51:42,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 37 [2022-07-22 23:51:42,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:51:42,587 INFO L225 Difference]: With dead ends: 1823 [2022-07-22 23:51:42,588 INFO L226 Difference]: Without dead ends: 1183 [2022-07-22 23:51:42,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:51:42,600 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 831 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:51:42,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1881 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-22 23:51:42,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-07-22 23:51:42,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2022-07-22 23:51:42,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 846 states have (on average 1.3321513002364067) internal successors, (1127), 854 states have internal predecessors, (1127), 274 states have call successors, (274), 63 states have call predecessors, (274), 62 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) [2022-07-22 23:51:42,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1674 transitions. [2022-07-22 23:51:42,773 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1674 transitions. Word has length 37 [2022-07-22 23:51:42,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:51:42,775 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1674 transitions. [2022-07-22 23:51:42,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-07-22 23:51:42,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1674 transitions. [2022-07-22 23:51:42,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-22 23:51:42,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:42,783 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] [2022-07-22 23:51:42,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 23:51:42,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:51:42,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1782235712, now seen corresponding path program 1 times [2022-07-22 23:51:42,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:51:42,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243486936] [2022-07-22 23:51:42,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:51:42,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:51:42,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:51:42,994 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) [2022-07-22 23:51:42,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 23:51:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:43,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:51:43,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:51:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 23:51:44,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:51:44,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:51:44,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243486936] [2022-07-22 23:51:44,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243486936] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:51:44,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:51:44,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:51:44,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441273105] [2022-07-22 23:51:44,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:51:44,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:51:44,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:51:44,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:51:44,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:51:44,586 INFO L87 Difference]: Start difference. First operand 1183 states and 1674 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-07-22 23:51:45,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:51:45,969 INFO L93 Difference]: Finished difference Result 3526 states and 5042 transitions. [2022-07-22 23:51:45,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:51:45,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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 [2022-07-22 23:51:45,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:51:45,988 INFO L225 Difference]: With dead ends: 3526 [2022-07-22 23:51:45,988 INFO L226 Difference]: Without dead ends: 2346 [2022-07-22 23:51:45,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:51:45,996 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 835 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 23:51:45,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 3971 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 23:51:46,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2022-07-22 23:51:46,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2338. [2022-07-22 23:51:46,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 1669 states have (on average 1.3319352905931696) internal successors, (2223), 1685 states have internal predecessors, (2223), 544 states have call successors, (544), 125 states have call predecessors, (544), 124 states have return successors, (569), 543 states have call predecessors, (569), 543 states have call successors, (569) [2022-07-22 23:51:46,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3336 transitions. [2022-07-22 23:51:46,110 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3336 transitions. Word has length 39 [2022-07-22 23:51:46,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:51:46,111 INFO L495 AbstractCegarLoop]: Abstraction has 2338 states and 3336 transitions. [2022-07-22 23:51:46,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-07-22 23:51:46,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3336 transitions. [2022-07-22 23:51:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-22 23:51:46,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:46,131 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:51:46,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 23:51:46,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:51:46,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:46,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:46,355 INFO L85 PathProgramCache]: Analyzing trace with hash -353908813, now seen corresponding path program 1 times [2022-07-22 23:51:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:51:46,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827155176] [2022-07-22 23:51:46,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:51:46,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:51:46,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:51:46,359 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) [2022-07-22 23:51:46,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 23:51:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:48,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:51:48,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:51:56,579 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-22 23:51:56,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:51:56,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:51:56,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827155176] [2022-07-22 23:51:56,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827155176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:51:56,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:51:56,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:51:56,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848876704] [2022-07-22 23:51:56,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:51:56,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:51:56,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:51:56,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:51:56,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:51:56,581 INFO L87 Difference]: Start difference. First operand 2338 states and 3336 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:51:58,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:00,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:12,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:12,603 INFO L93 Difference]: Finished difference Result 4694 states and 6715 transitions. [2022-07-22 23:52:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:52:12,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 233 [2022-07-22 23:52:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:12,625 INFO L225 Difference]: With dead ends: 4694 [2022-07-22 23:52:12,625 INFO L226 Difference]: Without dead ends: 2366 [2022-07-22 23:52:12,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:52:12,638 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 748 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:12,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1957 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2022-07-22 23:52:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2022-07-22 23:52:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2358. [2022-07-22 23:52:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2358 states, 1683 states have (on average 1.3303624480095069) internal successors, (2239), 1705 states have internal predecessors, (2239), 544 states have call successors, (544), 125 states have call predecessors, (544), 130 states have return successors, (585), 543 states have call predecessors, (585), 543 states have call successors, (585) [2022-07-22 23:52:12,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 3368 transitions. [2022-07-22 23:52:12,739 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 3368 transitions. Word has length 233 [2022-07-22 23:52:12,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:12,740 INFO L495 AbstractCegarLoop]: Abstraction has 2358 states and 3368 transitions. [2022-07-22 23:52:12,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:52:12,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 3368 transitions. [2022-07-22 23:52:12,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-22 23:52:12,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:12,768 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:52:12,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:12,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:12,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:12,988 INFO L85 PathProgramCache]: Analyzing trace with hash -482558547, now seen corresponding path program 1 times [2022-07-22 23:52:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:12,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737182844] [2022-07-22 23:52:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:12,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:12,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:12,993 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) [2022-07-22 23:52:12,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 23:52:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:14,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:52:15,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:23,389 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-22 23:52:23,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:23,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:23,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737182844] [2022-07-22 23:52:23,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737182844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:23,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:23,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:52:23,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479316879] [2022-07-22 23:52:23,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:23,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:52:23,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:23,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:52:23,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:52:23,391 INFO L87 Difference]: Start difference. First operand 2358 states and 3368 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:52:25,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:27,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:38,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:38,910 INFO L93 Difference]: Finished difference Result 7082 states and 10142 transitions. [2022-07-22 23:52:38,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:52:38,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 230 [2022-07-22 23:52:38,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:38,943 INFO L225 Difference]: With dead ends: 7082 [2022-07-22 23:52:38,944 INFO L226 Difference]: Without dead ends: 4734 [2022-07-22 23:52:38,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:52:38,961 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 771 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:38,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 2930 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 590 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2022-07-22 23:52:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2022-07-22 23:52:39,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 4716. [2022-07-22 23:52:39,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4716 states, 3365 states have (on average 1.3295690936106983) internal successors, (4474), 3415 states have internal predecessors, (4474), 1084 states have call successors, (1084), 249 states have call predecessors, (1084), 266 states have return successors, (1187), 1083 states have call predecessors, (1187), 1083 states have call successors, (1187) [2022-07-22 23:52:39,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6745 transitions. [2022-07-22 23:52:39,191 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6745 transitions. Word has length 230 [2022-07-22 23:52:39,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:39,193 INFO L495 AbstractCegarLoop]: Abstraction has 4716 states and 6745 transitions. [2022-07-22 23:52:39,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:52:39,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6745 transitions. [2022-07-22 23:52:39,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-22 23:52:39,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:39,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:52:39,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:39,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:39,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:39,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:39,412 INFO L85 PathProgramCache]: Analyzing trace with hash 792522176, now seen corresponding path program 1 times [2022-07-22 23:52:39,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:39,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596817058] [2022-07-22 23:52:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:39,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:39,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:39,415 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) [2022-07-22 23:52:39,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 23:52:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 2754 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:52:41,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-22 23:52:48,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:48,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:48,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596817058] [2022-07-22 23:52:48,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596817058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:48,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:48,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:52:48,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092203908] [2022-07-22 23:52:48,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:48,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:52:48,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:48,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:52:48,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:52:48,964 INFO L87 Difference]: Start difference. First operand 4716 states and 6745 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:52:51,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:52:53,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:04,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:04,396 INFO L93 Difference]: Finished difference Result 11790 states and 16874 transitions. [2022-07-22 23:53:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:53:04,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 228 [2022-07-22 23:53:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:04,441 INFO L225 Difference]: With dead ends: 11790 [2022-07-22 23:53:04,441 INFO L226 Difference]: Without dead ends: 7084 [2022-07-22 23:53:04,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:53:04,466 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 769 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:04,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2922 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2022-07-22 23:53:04,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2022-07-22 23:53:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 7066. [2022-07-22 23:53:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7066 states, 5039 states have (on average 1.3282397301051796) internal successors, (6693), 5117 states have internal predecessors, (6693), 1624 states have call successors, (1624), 373 states have call predecessors, (1624), 402 states have return successors, (1781), 1623 states have call predecessors, (1781), 1623 states have call successors, (1781) [2022-07-22 23:53:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7066 states to 7066 states and 10098 transitions. [2022-07-22 23:53:04,764 INFO L78 Accepts]: Start accepts. Automaton has 7066 states and 10098 transitions. Word has length 228 [2022-07-22 23:53:04,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:04,766 INFO L495 AbstractCegarLoop]: Abstraction has 7066 states and 10098 transitions. [2022-07-22 23:53:04,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:53:04,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7066 states and 10098 transitions. [2022-07-22 23:53:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-22 23:53:04,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:04,783 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:53:04,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:04,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:53:04,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:04,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:04,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1627636270, now seen corresponding path program 1 times [2022-07-22 23:53:04,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:53:04,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920677446] [2022-07-22 23:53:04,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:04,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:53:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:53:05,000 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) [2022-07-22 23:53:05,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 23:53:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:07,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:53:07,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-22 23:53:15,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:53:15,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:53:15,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920677446] [2022-07-22 23:53:15,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920677446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:53:15,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:53:15,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:53:15,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042636496] [2022-07-22 23:53:15,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:15,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:53:15,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:53:15,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:53:15,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:53:15,100 INFO L87 Difference]: Start difference. First operand 7066 states and 10098 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:53:17,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:19,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:30,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:30,798 INFO L93 Difference]: Finished difference Result 21202 states and 30310 transitions. [2022-07-22 23:53:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:53:30,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 230 [2022-07-22 23:53:30,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:30,897 INFO L225 Difference]: With dead ends: 21202 [2022-07-22 23:53:30,897 INFO L226 Difference]: Without dead ends: 14146 [2022-07-22 23:53:30,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:53:30,937 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 747 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:30,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 3243 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 605 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2022-07-22 23:53:30,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14146 states. [2022-07-22 23:53:31,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14146 to 14064. [2022-07-22 23:53:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14064 states, 10015 states have (on average 1.330204692960559) internal successors, (13322), 10219 states have internal predecessors, (13322), 3244 states have call successors, (3244), 745 states have call predecessors, (3244), 804 states have return successors, (3535), 3195 states have call predecessors, (3535), 3243 states have call successors, (3535) [2022-07-22 23:53:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14064 states to 14064 states and 20101 transitions. [2022-07-22 23:53:31,571 INFO L78 Accepts]: Start accepts. Automaton has 14064 states and 20101 transitions. Word has length 230 [2022-07-22 23:53:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:31,572 INFO L495 AbstractCegarLoop]: Abstraction has 14064 states and 20101 transitions. [2022-07-22 23:53:31,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:53:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 14064 states and 20101 transitions. [2022-07-22 23:53:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-22 23:53:31,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:31,590 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:53:31,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:31,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:53:31,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:31,808 INFO L85 PathProgramCache]: Analyzing trace with hash 27161038, now seen corresponding path program 1 times [2022-07-22 23:53:31,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:53:31,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579690976] [2022-07-22 23:53:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:31,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:53:31,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:53:31,812 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) [2022-07-22 23:53:31,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 23:53:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:33,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 2756 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:53:33,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:41,913 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-22 23:53:41,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:53:41,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:53:41,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579690976] [2022-07-22 23:53:41,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579690976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:53:41,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:53:41,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:53:41,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811863982] [2022-07-22 23:53:41,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:41,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:53:41,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:53:41,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:53:41,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:53:41,915 INFO L87 Difference]: Start difference. First operand 14064 states and 20101 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:53:43,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:46,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:57,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:57,835 INFO L93 Difference]: Finished difference Result 32852 states and 46981 transitions. [2022-07-22 23:53:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:53:57,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 229 [2022-07-22 23:53:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:57,942 INFO L225 Difference]: With dead ends: 32852 [2022-07-22 23:53:57,943 INFO L226 Difference]: Without dead ends: 18798 [2022-07-22 23:53:58,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:53:58,072 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 757 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:58,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 3082 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 589 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2022-07-22 23:53:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18798 states. [2022-07-22 23:53:58,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18798 to 18756. [2022-07-22 23:53:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18756 states, 13355 states have (on average 1.32983901160614) internal successors, (17760), 13631 states have internal predecessors, (17760), 4324 states have call successors, (4324), 993 states have call predecessors, (4324), 1076 states have return successors, (4699), 4259 states have call predecessors, (4699), 4323 states have call successors, (4699) [2022-07-22 23:53:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18756 states to 18756 states and 26783 transitions. [2022-07-22 23:53:58,976 INFO L78 Accepts]: Start accepts. Automaton has 18756 states and 26783 transitions. Word has length 229 [2022-07-22 23:53:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:58,980 INFO L495 AbstractCegarLoop]: Abstraction has 18756 states and 26783 transitions. [2022-07-22 23:53:58,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:53:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 18756 states and 26783 transitions. [2022-07-22 23:53:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-22 23:53:59,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:59,013 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:53:59,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-22 23:53:59,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:53:59,214 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1343364159, now seen corresponding path program 1 times [2022-07-22 23:53:59,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:53:59,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011944405] [2022-07-22 23:53:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:59,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:53:59,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:53:59,220 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) [2022-07-22 23:53:59,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-22 23:54:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:01,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2752 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:54:01,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:54:08,808 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-22 23:54:08,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:54:08,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:54:08,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011944405] [2022-07-22 23:54:08,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011944405] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:08,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:08,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:54:08,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146113555] [2022-07-22 23:54:08,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:08,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:54:08,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:54:08,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:54:08,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:54:08,810 INFO L87 Difference]: Start difference. First operand 18756 states and 26783 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:54:10,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:12,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:23,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:23,976 INFO L93 Difference]: Finished difference Result 41291 states and 58904 transitions. [2022-07-22 23:54:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:54:23,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 227 [2022-07-22 23:54:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:24,079 INFO L225 Difference]: With dead ends: 41291 [2022-07-22 23:54:24,079 INFO L226 Difference]: Without dead ends: 22425 [2022-07-22 23:54:24,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:54:24,147 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 762 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:24,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2911 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-07-22 23:54:24,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22425 states. [2022-07-22 23:54:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22425 to 22391. [2022-07-22 23:54:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22391 states, 15914 states have (on average 1.3271961794646223) internal successors, (21121), 16250 states have internal predecessors, (21121), 5182 states have call successors, (5182), 1203 states have call predecessors, (5182), 1294 states have return successors, (5605), 5083 states have call predecessors, (5605), 5181 states have call successors, (5605) [2022-07-22 23:54:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22391 states to 22391 states and 31908 transitions. [2022-07-22 23:54:25,044 INFO L78 Accepts]: Start accepts. Automaton has 22391 states and 31908 transitions. Word has length 227 [2022-07-22 23:54:25,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:54:25,044 INFO L495 AbstractCegarLoop]: Abstraction has 22391 states and 31908 transitions. [2022-07-22 23:54:25,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:54:25,045 INFO L276 IsEmpty]: Start isEmpty. Operand 22391 states and 31908 transitions. [2022-07-22 23:54:25,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-22 23:54:25,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:25,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:54:25,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-22 23:54:25,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:54:25,299 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash -97457434, now seen corresponding path program 1 times [2022-07-22 23:54:25,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:54:25,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279422274] [2022-07-22 23:54:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:25,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:54:25,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:54:25,304 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) [2022-07-22 23:54:25,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-22 23:54:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:27,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:54:27,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:54:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-22 23:54:35,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:54:35,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:54:35,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279422274] [2022-07-22 23:54:35,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279422274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:35,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:35,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:54:35,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008716902] [2022-07-22 23:54:35,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:35,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:54:35,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:54:35,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:54:35,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:54:35,611 INFO L87 Difference]: Start difference. First operand 22391 states and 31908 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:54:37,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:39,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:50,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:50,695 INFO L93 Difference]: Finished difference Result 34135 states and 48683 transitions. [2022-07-22 23:54:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:54:50,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 231 [2022-07-22 23:54:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:50,863 INFO L225 Difference]: With dead ends: 34135 [2022-07-22 23:54:50,863 INFO L226 Difference]: Without dead ends: 22471 [2022-07-22 23:54:50,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:54:50,917 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 759 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:50,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 1957 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-07-22 23:54:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22471 states. [2022-07-22 23:54:51,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22471 to 22391. [2022-07-22 23:54:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22391 states, 15914 states have (on average 1.3271961794646223) internal successors, (21121), 16250 states have internal predecessors, (21121), 5182 states have call successors, (5182), 1203 states have call predecessors, (5182), 1294 states have return successors, (5529), 5083 states have call predecessors, (5529), 5181 states have call successors, (5529) [2022-07-22 23:54:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22391 states to 22391 states and 31832 transitions. [2022-07-22 23:54:51,827 INFO L78 Accepts]: Start accepts. Automaton has 22391 states and 31832 transitions. Word has length 231 [2022-07-22 23:54:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:54:51,828 INFO L495 AbstractCegarLoop]: Abstraction has 22391 states and 31832 transitions. [2022-07-22 23:54:51,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-22 23:54:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 22391 states and 31832 transitions. [2022-07-22 23:54:51,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-22 23:54:51,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:51,853 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 23:54:51,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-22 23:54:52,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:54:52,079 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:52,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:52,080 INFO L85 PathProgramCache]: Analyzing trace with hash -294115493, now seen corresponding path program 1 times [2022-07-22 23:54:52,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:54:52,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671450676] [2022-07-22 23:54:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:52,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:54:52,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:54:52,084 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) [2022-07-22 23:54:52,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-22 23:54:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:54,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 2762 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:54:54,438 INFO L286 TraceCheckSpWp]: Computing forward predicates...