./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-?-6c24879 [2022-07-12 12:34:49,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:34:49,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:34:49,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:34:49,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:34:49,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:34:49,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:34:49,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:34:49,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:34:49,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:34:49,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:34:49,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:34:49,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:34:49,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:34:49,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:34:49,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:34:50,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:34:50,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:34:50,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:34:50,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:34:50,008 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:34:50,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:34:50,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:34:50,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:34:50,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:34:50,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:34:50,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:34:50,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:34:50,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:34:50,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:34:50,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:34:50,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:34:50,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:34:50,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:34:50,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:34:50,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:34:50,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:34:50,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:34:50,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:34:50,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:34:50,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:34:50,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:34:50,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:34:50,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:34:50,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:34:50,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:34:50,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:34:50,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:34:50,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:34:50,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:34:50,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:34:50,049 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:34:50,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:34:50,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:34:50,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:34:50,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:34:50,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:34:50,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:34:50,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:34:50,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:34:50,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:34:50,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:34:50,052 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:34:50,052 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:34:50,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:34:50,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2022-07-12 12:34:50,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:34:50,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:34:50,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:34:50,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:34:50,291 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:34:50,292 INFO L432 ainManager$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 [2022-07-12 12:34:50,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7c9a58e/540d3f5fd76a484da5e02cd039ef379e/FLAG8c09d448e [2022-07-12 12:34:50,897 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:34:50,897 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 [2022-07-12 12:34:50,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7c9a58e/540d3f5fd76a484da5e02cd039ef379e/FLAG8c09d448e [2022-07-12 12:34:51,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c7c9a58e/540d3f5fd76a484da5e02cd039ef379e [2022-07-12 12:34:51,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:34:51,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:34:51,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:34:51,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:34:51,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:34:51,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:34:51" (1/1) ... [2022-07-12 12:34:51,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187060d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:51, skipping insertion in model container [2022-07-12 12:34:51,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:34:51" (1/1) ... [2022-07-12 12:34:51,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:34:51,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:34:51,703 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] [2022-07-12 12:34:51,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:34:52,002 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:34:52,068 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] [2022-07-12 12:34:52,126 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) [2022-07-12 12:34:52,131 INFO L158 Benchmark]: Toolchain (without parser) took 1026.85ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 79.8MB in the beginning and 66.8MB in the end (delta: 13.0MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2022-07-12 12:34:52,132 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:34:52,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1023.77ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 79.5MB in the beginning and 66.8MB in the end (delta: 12.8MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2022-07-12 12:34:52,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1023.77ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 79.5MB in the beginning and 66.8MB in the end (delta: 12.8MB). Peak memory consumption was 43.2MB. 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-?-6c24879 [2022-07-12 12:34:53,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:34:53,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:34:53,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:34:53,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:34:53,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:34:53,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:34:53,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:34:53,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:34:53,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:34:53,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:34:53,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:34:53,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:34:53,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:34:53,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:34:53,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:34:53,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:34:53,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:34:53,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:34:53,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:34:53,943 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:34:53,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:34:53,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:34:53,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:34:53,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:34:53,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:34:53,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:34:53,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:34:53,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:34:53,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:34:53,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:34:53,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:34:53,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:34:53,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:34:53,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:34:53,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:34:53,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:34:53,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:34:53,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:34:53,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:34:53,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:34:53,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:34:53,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:34:53,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:34:53,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:34:53,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:34:53,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:34:53,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:34:53,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:34:53,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:34:53,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:34:53,995 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:34:53,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:34:53,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:34:53,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:34:53,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:34:53,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:34:53,997 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:34:53,997 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:34:53,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:34:53,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:34:53,998 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:34:53,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:34:53,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:34:53,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:34:53,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:34:53,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:34:53,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:34:53,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:34:53,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:34:53,999 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:34:53,999 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:34:53,999 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:34:54,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:34:54,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:34:54,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:34:54,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2022-07-12 12:34:54,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:34:54,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:34:54,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:34:54,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:34:54,320 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:34:54,321 INFO L432 ainManager$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 [2022-07-12 12:34:54,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9438ce8/b508398faab14c77a8643b4ca58a2668/FLAG6b7677c5c [2022-07-12 12:34:54,973 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:34:54,974 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 [2022-07-12 12:34:54,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9438ce8/b508398faab14c77a8643b4ca58a2668/FLAG6b7677c5c [2022-07-12 12:34:55,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9438ce8/b508398faab14c77a8643b4ca58a2668 [2022-07-12 12:34:55,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:34:55,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:34:55,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:34:55,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:34:55,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:34:55,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:34:55" (1/1) ... [2022-07-12 12:34:55,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73151640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:55, skipping insertion in model container [2022-07-12 12:34:55,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:34:55" (1/1) ... [2022-07-12 12:34:55,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:34:55,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:34:56,050 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] [2022-07-12 12:34:56,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:34:56,394 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:34:56,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:34:56,515 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] [2022-07-12 12:34:56,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:34:56,641 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:34:56,785 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] [2022-07-12 12:34:56,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:34:56,940 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:34:56,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56 WrapperNode [2022-07-12 12:34:56,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:34:56,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:34:56,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:34:56,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:34:56,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,080 INFO L137 Inliner]: procedures = 152, calls = 1066, calls flagged for inlining = 55, calls inlined = 52, statements flattened = 1815 [2022-07-12 12:34:57,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:34:57,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:34:57,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:34:57,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:34:57,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:34:57,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:34:57,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:34:57,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:34:57,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (1/1) ... [2022-07-12 12:34:57,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:34:57,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:34:57,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 12:34:57,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 12:34:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:34:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2022-07-12 12:34:57,305 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2022-07-12 12:34:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:34:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:34:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:34:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:34:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:34:57,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:34:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure write_long_reg [2022-07-12 12:34:57,306 INFO L138 BoogieDeclarations]: Found implementation of procedure write_long_reg [2022-07-12 12:34:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-07-12 12:34:57,306 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-07-12 12:34:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:34:57,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:34:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-12 12:34:57,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-12 12:34:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-07-12 12:34:57,307 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-07-12 12:34:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:34:57,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:34:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-12 12:34:57,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-12 12:34:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:34:57,308 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:34:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:34:57,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:34:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:34:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:34:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:34:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:34:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:34:57,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:34:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_set_channel [2022-07-12 12:34:57,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_set_channel [2022-07-12 12:34:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-07-12 12:34:57,309 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-07-12 12:34:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:34:57,310 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:34:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure write_short_reg [2022-07-12 12:34:57,310 INFO L138 BoogieDeclarations]: Found implementation of procedure write_short_reg [2022-07-12 12:34:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:34:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:34:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_unregister_device [2022-07-12 12:34:57,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_unregister_device [2022-07-12 12:34:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:34:57,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:34:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:34:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:34:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:34:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:34:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:34:57,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:34:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-07-12 12:34:57,312 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-07-12 12:34:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:34:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-07-12 12:34:57,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-07-12 12:34:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure read_short_reg [2022-07-12 12:34:57,312 INFO L138 BoogieDeclarations]: Found implementation of procedure read_short_reg [2022-07-12 12:34:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_filter [2022-07-12 12:34:57,313 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_filter [2022-07-12 12:34:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:34:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-12 12:34:57,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-12 12:34:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:34:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:34:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:34:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:34:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:34:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-12 12:34:57,314 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-12 12:34:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:34:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 12:34:57,314 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 12:34:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-07-12 12:34:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-07-12 12:34:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:34:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_tx [2022-07-12 12:34:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_tx [2022-07-12 12:34:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_isr [2022-07-12 12:34:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_isr [2022-07-12 12:34:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_ed [2022-07-12 12:34:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_ed [2022-07-12 12:34:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:34:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:34:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_free_device [2022-07-12 12:34:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_free_device [2022-07-12 12:34:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:34:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:34:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:34:57,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:34:57,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:34:57,684 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:34:57,686 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:35:00,172 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:35:32,762 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:35:32,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:35:32,780 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-12 12:35:32,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:35:32 BoogieIcfgContainer [2022-07-12 12:35:32,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:35:32,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:35:32,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:35:32,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:35:32,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:34:55" (1/3) ... [2022-07-12 12:35:32,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e17cfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:35:32, skipping insertion in model container [2022-07-12 12:35:32,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:34:56" (2/3) ... [2022-07-12 12:35:32,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e17cfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:35:32, skipping insertion in model container [2022-07-12 12:35:32,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:35:32" (3/3) ... [2022-07-12 12:35:32,791 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 [2022-07-12 12:35:32,804 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:35:32,805 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:35:32,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:35:32,858 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@777b6e0b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@b57bf06 [2022-07-12 12:35:32,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:35:32,864 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) [2022-07-12 12:35:32,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 12:35:32,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:32,880 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] [2022-07-12 12:35:32,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:32,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash -829070541, now seen corresponding path program 1 times [2022-07-12 12:35:32,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:32,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911373694] [2022-07-12 12:35:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:35:32,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:32,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:32,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:32,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:35:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:35:33,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:35:33,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 12:35:33,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:35:33,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:33,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911373694] [2022-07-12 12:35:33,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911373694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:35:33,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:35:33,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:35:33,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052802597] [2022-07-12 12:35:33,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:35:33,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:35:33,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:33,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:35:33,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:35:33,831 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) [2022-07-12 12:35:35,889 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 [] [2022-07-12 12:35:36,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:35:36,264 INFO L93 Difference]: Finished difference Result 1823 states and 2771 transitions. [2022-07-12 12:35:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:35:36,266 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 [2022-07-12 12:35:36,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:35:36,286 INFO L225 Difference]: With dead ends: 1823 [2022-07-12 12:35:36,287 INFO L226 Difference]: Without dead ends: 1183 [2022-07-12 12:35:36,297 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 [2022-07-12 12:35:36,301 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 831 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:35:36,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1881 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 12:35:36,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-07-12 12:35:36,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2022-07-12 12:35:36,421 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) [2022-07-12 12:35:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1674 transitions. [2022-07-12 12:35:36,434 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1674 transitions. Word has length 37 [2022-07-12 12:35:36,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:35:36,436 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1674 transitions. [2022-07-12 12:35:36,436 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) [2022-07-12 12:35:36,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1674 transitions. [2022-07-12 12:35:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 12:35:36,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:36,442 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] [2022-07-12 12:35:36,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 12:35:36,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:35:36,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:36,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:36,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1782235712, now seen corresponding path program 1 times [2022-07-12 12:35:36,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:36,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686302445] [2022-07-12 12:35:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:35:36,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:36,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:36,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:36,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:35:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:35:37,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:35:37,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 12:35:37,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:35:37,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:37,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686302445] [2022-07-12 12:35:37,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686302445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:35:37,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:35:37,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:35:37,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482568498] [2022-07-12 12:35:37,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:35:37,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:35:37,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:37,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:35:37,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:35:37,942 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) [2022-07-12 12:35:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:35:39,055 INFO L93 Difference]: Finished difference Result 3526 states and 5042 transitions. [2022-07-12 12:35:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:35:39,056 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 [2022-07-12 12:35:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:35:39,069 INFO L225 Difference]: With dead ends: 3526 [2022-07-12 12:35:39,070 INFO L226 Difference]: Without dead ends: 2346 [2022-07-12 12:35:39,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:35:39,076 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 835 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:35:39,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 3971 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 12:35:39,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2022-07-12 12:35:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2338. [2022-07-12 12:35:39,147 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) [2022-07-12 12:35:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3336 transitions. [2022-07-12 12:35:39,162 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3336 transitions. Word has length 39 [2022-07-12 12:35:39,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:35:39,163 INFO L495 AbstractCegarLoop]: Abstraction has 2338 states and 3336 transitions. [2022-07-12 12:35:39,163 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) [2022-07-12 12:35:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3336 transitions. [2022-07-12 12:35:39,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-12 12:35:39,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:35:39,177 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] [2022-07-12 12:35:39,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:35:39,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:35:39,392 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:35:39,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:35:39,392 INFO L85 PathProgramCache]: Analyzing trace with hash -353908813, now seen corresponding path program 1 times [2022-07-12 12:35:39,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:35:39,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360996626] [2022-07-12 12:35:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:35:39,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:35:39,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:35:39,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:35:39,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:35:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:35:41,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:35:41,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:35:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:35:48,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:35:48,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:35:48,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360996626] [2022-07-12 12:35:48,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360996626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:35:48,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:35:48,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:35:48,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214132838] [2022-07-12 12:35:48,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:35:48,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:35:48,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:35:48,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:35:48,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:35:48,292 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) [2022-07-12 12:35:50,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:35:52,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:36:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:03,401 INFO L93 Difference]: Finished difference Result 4694 states and 6715 transitions. [2022-07-12 12:36:03,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:36:03,403 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 [2022-07-12 12:36:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:03,417 INFO L225 Difference]: With dead ends: 4694 [2022-07-12 12:36:03,417 INFO L226 Difference]: Without dead ends: 2366 [2022-07-12 12:36:03,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:36:03,427 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 748 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s 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, 14.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:03,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1957 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2022-07-12 12:36:03,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2022-07-12 12:36:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2358. [2022-07-12 12:36:03,490 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) [2022-07-12 12:36:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 3368 transitions. [2022-07-12 12:36:03,501 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 3368 transitions. Word has length 233 [2022-07-12 12:36:03,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:03,503 INFO L495 AbstractCegarLoop]: Abstraction has 2358 states and 3368 transitions. [2022-07-12 12:36:03,504 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) [2022-07-12 12:36:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 3368 transitions. [2022-07-12 12:36:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-12 12:36:03,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:03,510 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] [2022-07-12 12:36:03,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:03,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:03,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:03,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:03,726 INFO L85 PathProgramCache]: Analyzing trace with hash -482558547, now seen corresponding path program 1 times [2022-07-12 12:36:03,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:03,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2129829224] [2022-07-12 12:36:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:03,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:03,734 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:36:03,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:36:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:05,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:36:05,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:36:13,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:13,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:13,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2129829224] [2022-07-12 12:36:13,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2129829224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:13,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:13,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:36:13,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237580683] [2022-07-12 12:36:13,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:13,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:36:13,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:13,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:36:13,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:36:13,542 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) [2022-07-12 12:36:15,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:36:17,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:36:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:28,846 INFO L93 Difference]: Finished difference Result 7082 states and 10142 transitions. [2022-07-12 12:36:28,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:36:28,847 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 [2022-07-12 12:36:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:28,872 INFO L225 Difference]: With dead ends: 7082 [2022-07-12 12:36:28,873 INFO L226 Difference]: Without dead ends: 4734 [2022-07-12 12:36:28,883 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 [2022-07-12 12:36:28,885 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 771 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s 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, 15.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:28,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 2930 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 590 Invalid, 2 Unknown, 0 Unchecked, 15.0s Time] [2022-07-12 12:36:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2022-07-12 12:36:29,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 4716. [2022-07-12 12:36:29,006 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) [2022-07-12 12:36:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6745 transitions. [2022-07-12 12:36:29,023 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6745 transitions. Word has length 230 [2022-07-12 12:36:29,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:29,026 INFO L495 AbstractCegarLoop]: Abstraction has 4716 states and 6745 transitions. [2022-07-12 12:36:29,026 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) [2022-07-12 12:36:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6745 transitions. [2022-07-12 12:36:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-12 12:36:29,032 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:29,032 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] [2022-07-12 12:36:29,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:29,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:29,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:29,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:29,248 INFO L85 PathProgramCache]: Analyzing trace with hash 792522176, now seen corresponding path program 1 times [2022-07-12 12:36:29,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:29,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721626378] [2022-07-12 12:36:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:29,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:29,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:29,250 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:36:29,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:36:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:31,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 2754 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:36:31,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:36:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:36:38,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:36:38,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:36:38,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721626378] [2022-07-12 12:36:38,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721626378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:36:38,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:36:38,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:36:38,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575023014] [2022-07-12 12:36:38,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:36:38,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:36:38,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:36:38,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:36:38,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:36:38,460 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) [2022-07-12 12:36:40,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:36:42,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:36:53,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:36:53,481 INFO L93 Difference]: Finished difference Result 11790 states and 16874 transitions. [2022-07-12 12:36:53,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:36:53,482 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 [2022-07-12 12:36:53,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:36:53,517 INFO L225 Difference]: With dead ends: 11790 [2022-07-12 12:36:53,517 INFO L226 Difference]: Without dead ends: 7084 [2022-07-12 12:36:53,537 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 [2022-07-12 12:36:53,538 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 769 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s 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, 14.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:36:53,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2922 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2022-07-12 12:36:53,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2022-07-12 12:36:53,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 7066. [2022-07-12 12:36:53,757 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) [2022-07-12 12:36:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7066 states to 7066 states and 10098 transitions. [2022-07-12 12:36:53,781 INFO L78 Accepts]: Start accepts. Automaton has 7066 states and 10098 transitions. Word has length 228 [2022-07-12 12:36:53,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:36:53,782 INFO L495 AbstractCegarLoop]: Abstraction has 7066 states and 10098 transitions. [2022-07-12 12:36:53,783 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) [2022-07-12 12:36:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7066 states and 10098 transitions. [2022-07-12 12:36:53,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-12 12:36:53,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:36:53,793 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] [2022-07-12 12:36:53,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:36:54,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:36:54,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:36:54,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:36:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1627636270, now seen corresponding path program 1 times [2022-07-12 12:36:54,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:36:54,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272953545] [2022-07-12 12:36:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:36:54,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:36:54,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:36:54,019 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:36:54,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:36:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:36:55,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:36:55,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:37:03,571 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:37:03,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:37:03,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:37:03,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272953545] [2022-07-12 12:37:03,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272953545] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:37:03,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:37:03,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:37:03,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421133585] [2022-07-12 12:37:03,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:37:03,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:37:03,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:37:03,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:37:03,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:37:03,573 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) [2022-07-12 12:37:05,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:37:07,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:37:18,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:37:18,390 INFO L93 Difference]: Finished difference Result 21202 states and 30310 transitions. [2022-07-12 12:37:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:37:18,392 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 [2022-07-12 12:37:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:37:18,458 INFO L225 Difference]: With dead ends: 21202 [2022-07-12 12:37:18,458 INFO L226 Difference]: Without dead ends: 14146 [2022-07-12 12:37:18,488 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 [2022-07-12 12:37:18,489 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 747 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s 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, 14.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:37:18,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 3243 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 605 Invalid, 2 Unknown, 0 Unchecked, 14.4s Time] [2022-07-12 12:37:18,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14146 states. [2022-07-12 12:37:18,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14146 to 14064. [2022-07-12 12:37:18,918 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) [2022-07-12 12:37:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14064 states to 14064 states and 20101 transitions. [2022-07-12 12:37:18,962 INFO L78 Accepts]: Start accepts. Automaton has 14064 states and 20101 transitions. Word has length 230 [2022-07-12 12:37:18,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:37:18,962 INFO L495 AbstractCegarLoop]: Abstraction has 14064 states and 20101 transitions. [2022-07-12 12:37:18,963 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) [2022-07-12 12:37:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 14064 states and 20101 transitions. [2022-07-12 12:37:18,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-12 12:37:18,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:37:18,975 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] [2022-07-12 12:37:19,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:37:19,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:37:19,192 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:37:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:37:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash 27161038, now seen corresponding path program 1 times [2022-07-12 12:37:19,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:37:19,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880944625] [2022-07-12 12:37:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:37:19,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:37:19,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:37:19,194 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:37:19,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:37:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:37:21,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 2756 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:37:21,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:37:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:37:28,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:37:28,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:37:28,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880944625] [2022-07-12 12:37:28,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880944625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:37:28,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:37:28,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:37:28,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068692374] [2022-07-12 12:37:28,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:37:28,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:37:28,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:37:28,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:37:28,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:37:28,930 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) [2022-07-12 12:37:30,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:37:33,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:37:44,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:37:44,122 INFO L93 Difference]: Finished difference Result 32852 states and 46981 transitions. [2022-07-12 12:37:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:37:44,123 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 [2022-07-12 12:37:44,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:37:44,214 INFO L225 Difference]: With dead ends: 32852 [2022-07-12 12:37:44,215 INFO L226 Difference]: Without dead ends: 18798 [2022-07-12 12:37:44,261 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 [2022-07-12 12:37:44,263 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 757 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s 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, 14.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:37:44,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 3082 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 589 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-07-12 12:37:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18798 states. [2022-07-12 12:37:44,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18798 to 18756. [2022-07-12 12:37:44,803 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) [2022-07-12 12:37:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18756 states to 18756 states and 26783 transitions. [2022-07-12 12:37:44,867 INFO L78 Accepts]: Start accepts. Automaton has 18756 states and 26783 transitions. Word has length 229 [2022-07-12 12:37:44,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:37:44,870 INFO L495 AbstractCegarLoop]: Abstraction has 18756 states and 26783 transitions. [2022-07-12 12:37:44,870 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) [2022-07-12 12:37:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 18756 states and 26783 transitions. [2022-07-12 12:37:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-12 12:37:44,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:37:44,882 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] [2022-07-12 12:37:44,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:37:45,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:37:45,103 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:37:45,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:37:45,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1343364159, now seen corresponding path program 1 times [2022-07-12 12:37:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:37:45,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916288885] [2022-07-12 12:37:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:37:45,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:37:45,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:37:45,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:37:45,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:37:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:37:47,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 2752 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:37:47,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:37:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:37:54,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:37:54,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:37:54,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916288885] [2022-07-12 12:37:54,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916288885] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:37:54,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:37:54,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:37:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16587775] [2022-07-12 12:37:54,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:37:54,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:37:54,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:37:54,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:37:54,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:37:54,683 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) [2022-07-12 12:37:56,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:37:58,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:38:09,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:38:09,322 INFO L93 Difference]: Finished difference Result 41291 states and 58904 transitions. [2022-07-12 12:38:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:38:09,323 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 [2022-07-12 12:38:09,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:38:09,408 INFO L225 Difference]: With dead ends: 41291 [2022-07-12 12:38:09,408 INFO L226 Difference]: Without dead ends: 22425 [2022-07-12 12:38:09,452 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 [2022-07-12 12:38:09,453 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 762 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s 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, 14.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:38:09,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2911 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2022-07-12 12:38:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22425 states. [2022-07-12 12:38:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22425 to 22391. [2022-07-12 12:38:10,387 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) [2022-07-12 12:38:10,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22391 states to 22391 states and 31908 transitions. [2022-07-12 12:38:10,478 INFO L78 Accepts]: Start accepts. Automaton has 22391 states and 31908 transitions. Word has length 227 [2022-07-12 12:38:10,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:38:10,479 INFO L495 AbstractCegarLoop]: Abstraction has 22391 states and 31908 transitions. [2022-07-12 12:38:10,479 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) [2022-07-12 12:38:10,479 INFO L276 IsEmpty]: Start isEmpty. Operand 22391 states and 31908 transitions. [2022-07-12 12:38:10,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-12 12:38:10,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:38:10,504 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] [2022-07-12 12:38:10,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-12 12:38:10,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:38:10,723 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:38:10,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:38:10,724 INFO L85 PathProgramCache]: Analyzing trace with hash -97457434, now seen corresponding path program 1 times [2022-07-12 12:38:10,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:38:10,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825874965] [2022-07-12 12:38:10,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:38:10,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:38:10,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:38:10,727 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:38:10,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:38:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:38:13,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:38:13,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:38:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:38:20,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:38:20,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:38:20,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825874965] [2022-07-12 12:38:20,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825874965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:38:20,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:38:20,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:38:20,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183406324] [2022-07-12 12:38:20,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:38:20,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:38:20,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:38:20,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:38:20,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:38:20,705 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) [2022-07-12 12:38:22,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:38:24,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:38:34,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:38:34,987 INFO L93 Difference]: Finished difference Result 34135 states and 48683 transitions. [2022-07-12 12:38:34,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:38:34,989 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 [2022-07-12 12:38:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:38:35,057 INFO L225 Difference]: With dead ends: 34135 [2022-07-12 12:38:35,057 INFO L226 Difference]: Without dead ends: 22471 [2022-07-12 12:38:35,090 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 [2022-07-12 12:38:35,091 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 759 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s 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, 13.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:38:35,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 1957 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2022-07-12 12:38:35,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22471 states. [2022-07-12 12:38:35,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22471 to 22391. [2022-07-12 12:38:35,745 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) [2022-07-12 12:38:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22391 states to 22391 states and 31832 transitions. [2022-07-12 12:38:35,841 INFO L78 Accepts]: Start accepts. Automaton has 22391 states and 31832 transitions. Word has length 231 [2022-07-12 12:38:35,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:38:35,841 INFO L495 AbstractCegarLoop]: Abstraction has 22391 states and 31832 transitions. [2022-07-12 12:38:35,842 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) [2022-07-12 12:38:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 22391 states and 31832 transitions. [2022-07-12 12:38:35,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-12 12:38:35,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:38:35,880 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] [2022-07-12 12:38:36,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 12:38:36,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:38:36,099 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:38:36,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:38:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash -294115493, now seen corresponding path program 1 times [2022-07-12 12:38:36,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:38:36,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375251782] [2022-07-12 12:38:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:38:36,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:38:36,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:38:36,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:38:36,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 12:38:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:38:38,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2762 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:38:38,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:38:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 12:38:45,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:38:45,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:38:45,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375251782] [2022-07-12 12:38:45,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375251782] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:38:45,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:38:45,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:38:45,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394398051] [2022-07-12 12:38:45,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:38:45,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:38:45,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:38:45,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:38:45,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:38:45,599 INFO L87 Difference]: Start difference. First operand 22391 states and 31832 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2022-07-12 12:38:47,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:38:49,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:38:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:38:59,842 INFO L93 Difference]: Finished difference Result 34135 states and 48547 transitions. [2022-07-12 12:38:59,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:38:59,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 232 [2022-07-12 12:38:59,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:38:59,956 INFO L225 Difference]: With dead ends: 34135 [2022-07-12 12:38:59,956 INFO L226 Difference]: Without dead ends: 21674 [2022-07-12 12:38:59,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:38:59,982 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 771 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:38:59,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1957 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 581 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2022-07-12 12:38:59,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21674 states. [2022-07-12 12:39:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21674 to 21634. [2022-07-12 12:39:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21634 states, 15337 states have (on average 1.3254873834517833) internal successors, (20329), 15645 states have internal predecessors, (20329), 5067 states have call successors, (5067), 1170 states have call predecessors, (5067), 1229 states have return successors, (5322), 4964 states have call predecessors, (5322), 5066 states have call successors, (5322) [2022-07-12 12:39:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21634 states to 21634 states and 30718 transitions. [2022-07-12 12:39:00,630 INFO L78 Accepts]: Start accepts. Automaton has 21634 states and 30718 transitions. Word has length 232 [2022-07-12 12:39:00,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:39:00,631 INFO L495 AbstractCegarLoop]: Abstraction has 21634 states and 30718 transitions. [2022-07-12 12:39:00,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2022-07-12 12:39:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 21634 states and 30718 transitions. [2022-07-12 12:39:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-12 12:39:00,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:39:00,651 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:39:00,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 12:39:00,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:39:00,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:39:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:39:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash 760499356, now seen corresponding path program 1 times [2022-07-12 12:39:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:39:00,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101075525] [2022-07-12 12:39:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:39:00,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:39:00,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:39:00,900 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:39:00,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 12:39:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:39:03,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:39:03,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:39:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-12 12:39:10,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:39:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-12 12:39:14,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:39:14,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101075525] [2022-07-12 12:39:14,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101075525] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 12:39:14,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:39:14,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 10 [2022-07-12 12:39:14,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973042504] [2022-07-12 12:39:14,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:39:14,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:39:14,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:39:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:39:14,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:39:14,480 INFO L87 Difference]: Start difference. First operand 21634 states and 30718 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 12:39:16,525 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 []