./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.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 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:05:56,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:05:56,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:05:56,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:05:56,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:05:56,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:05:56,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:05:57,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:05:57,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:05:57,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:05:57,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:05:57,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:05:57,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:05:57,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:05:57,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:05:57,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:05:57,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:05:57,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:05:57,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:05:57,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:05:57,032 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:05:57,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:05:57,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:05:57,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:05:57,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:05:57,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:05:57,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:05:57,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:05:57,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:05:57,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:05:57,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:05:57,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:05:57,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:05:57,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:05:57,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:05:57,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:05:57,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:05:57,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:05:57,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:05:57,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:05:57,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:05:57,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:05:57,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:05:57,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:05:57,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:05:57,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:05:57,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:05:57,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:05:57,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:05:57,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:05:57,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:05:57,098 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:05:57,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:05:57,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:05:57,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:05:57,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:05:57,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:05:57,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:05:57,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:05:57,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:05:57,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:05:57,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:05:57,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:05:57,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:05:57,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:05:57,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:05:57,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:05:57,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:05:57,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:05:57,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:05:57,102 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:05:57,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:05:57,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:05:57,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2022-07-14 01:05:57,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:05:57,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:05:57,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:05:57,371 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:05:57,371 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:05:57,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-07-14 01:05:57,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85da7e222/0a7619fbeff84c659834b94db8cb179e/FLAGa8a6854b2 [2022-07-14 01:05:58,198 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:05:58,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-07-14 01:05:58,248 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85da7e222/0a7619fbeff84c659834b94db8cb179e/FLAGa8a6854b2 [2022-07-14 01:05:58,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85da7e222/0a7619fbeff84c659834b94db8cb179e [2022-07-14 01:05:58,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:05:58,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:05:58,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:05:58,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:05:58,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:05:58,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:05:58" (1/1) ... [2022-07-14 01:05:58,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d83599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:05:58, skipping insertion in model container [2022-07-14 01:05:58,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:05:58" (1/1) ... [2022-07-14 01:05:58,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:05:58,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:06:00,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2022-07-14 01:06:00,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:06:01,131 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:06:01,284 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: ftr_header = ftr_header & 65535U [3617] 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) [2022-07-14 01:06:01,294 INFO L158 Benchmark]: Toolchain (without parser) took 2525.62ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 65.6MB in the beginning and 76.6MB in the end (delta: -11.1MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2022-07-14 01:06:01,295 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory was 81.8MB in the beginning and 81.7MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 01:06:01,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2519.78ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 65.3MB in the beginning and 76.6MB in the end (delta: -11.3MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2022-07-14 01:06:01,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory was 81.8MB in the beginning and 81.7MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2519.78ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 65.3MB in the beginning and 76.6MB in the end (delta: -11.3MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: ftr_header = ftr_header & 65535U [3617] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: ftr_header = ftr_header & 65535U [3617]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.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 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:06:03,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:06:03,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:06:03,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:06:03,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:06:03,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:06:03,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:06:03,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:06:03,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:06:03,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:06:03,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:06:03,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:06:03,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:06:03,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:06:03,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:06:03,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:06:03,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:06:03,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:06:03,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:06:03,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:06:03,549 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:06:03,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:06:03,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:06:03,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:06:03,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:06:03,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:06:03,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:06:03,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:06:03,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:06:03,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:06:03,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:06:03,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:06:03,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:06:03,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:06:03,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:06:03,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:06:03,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:06:03,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:06:03,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:06:03,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:06:03,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:06:03,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:06:03,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 01:06:03,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:06:03,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:06:03,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:06:03,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:06:03,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:06:03,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:06:03,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:06:03,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:06:03,620 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:06:03,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:06:03,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:06:03,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:06:03,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:06:03,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:06:03,622 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 01:06:03,622 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 01:06:03,622 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 01:06:03,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:06:03,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:06:03,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:06:03,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:06:03,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:06:03,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:06:03,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:06:03,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:06:03,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:06:03,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:06:03,625 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 01:06:03,625 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 01:06:03,625 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:06:03,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:06:03,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:06:03,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 01:06:03,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2022-07-14 01:06:03,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:06:04,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:06:04,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:06:04,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:06:04,017 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:06:04,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-07-14 01:06:04,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16fed9f05/8785bb9c9bae4bb0afb03b099f070cbc/FLAGb132523de [2022-07-14 01:06:04,970 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:06:04,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-07-14 01:06:05,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16fed9f05/8785bb9c9bae4bb0afb03b099f070cbc/FLAGb132523de [2022-07-14 01:06:05,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16fed9f05/8785bb9c9bae4bb0afb03b099f070cbc [2022-07-14 01:06:05,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:06:05,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:06:05,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:06:05,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:06:05,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:06:05,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:06:05" (1/1) ... [2022-07-14 01:06:05,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea74a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:05, skipping insertion in model container [2022-07-14 01:06:05,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:06:05" (1/1) ... [2022-07-14 01:06:05,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:06:05,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:06:06,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2022-07-14 01:06:07,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:06:07,166 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 01:06:07,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:06:07,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2022-07-14 01:06:07,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:06:07,634 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:06:08,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2022-07-14 01:06:08,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:06:08,277 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:06:08,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08 WrapperNode [2022-07-14 01:06:08,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:06:08,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:06:08,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:06:08,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:06:08,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,565 INFO L137 Inliner]: procedures = 312, calls = 3660, calls flagged for inlining = 139, calls inlined = 96, statements flattened = 4731 [2022-07-14 01:06:08,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:06:08,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:06:08,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:06:08,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:06:08,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:06:08,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:06:08,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:06:08,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:06:08,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (1/1) ... [2022-07-14 01:06:08,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:06:08,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:06:08,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 01:06:08,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 01:06:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 01:06:08,987 INFO L130 BoogieDeclarations]: Found specification of procedure rio_uevent [2022-07-14 01:06:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_uevent [2022-07-14 01:06:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2022-07-14 01:06:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2022-07-14 01:06:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 01:06:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 01:06:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 01:06:08,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:06:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:06:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:06:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:06:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:06:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:06:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-14 01:06:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-14 01:06:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-07-14 01:06:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-07-14 01:06:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-14 01:06:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-14 01:06:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:06:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:06:08,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:06:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:06:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_16 [2022-07-14 01:06:08,991 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_16 [2022-07-14 01:06:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:06:08,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:06:08,991 INFO L130 BoogieDeclarations]: Found specification of procedure rio_device_remove [2022-07-14 01:06:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_device_remove [2022-07-14 01:06:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:06:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:06:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 01:06:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 01:06:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-14 01:06:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-14 01:06:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure disc_work_handler [2022-07-14 01:06:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure disc_work_handler [2022-07-14 01:06:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:06:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~~u16~0~X~~u8~0~X~~u32~0~X~C_INT~X~~u32~0~TO~C_INT [2022-07-14 01:06:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~~u16~0~X~~u8~0~X~~u32~0~X~C_INT~X~~u32~0~TO~C_INT [2022-07-14 01:06:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure rio_dev_put [2022-07-14 01:06:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_dev_put [2022-07-14 01:06:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:06:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-14 01:06:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-14 01:06:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 01:06:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 01:06:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 01:06:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 01:06:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 01:06:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_16 [2022-07-14 01:06:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_16 [2022-07-14 01:06:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 01:06:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:06:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:06:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure rio_mport_read_config_32 [2022-07-14 01:06:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_mport_read_config_32 [2022-07-14 01:06:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 01:06:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 01:06:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure rio_mport_write_config_32 [2022-07-14 01:06:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_mport_write_config_32 [2022-07-14 01:06:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 01:06:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 01:06:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-14 01:06:08,999 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-14 01:06:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 01:06:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 01:06:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure rio_name [2022-07-14 01:06:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_name [2022-07-14 01:06:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 01:06:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 01:06:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure rio_device_probe [2022-07-14 01:06:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_device_probe [2022-07-14 01:06:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 01:06:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 01:06:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_32 [2022-07-14 01:06:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_32 [2022-07-14 01:06:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-14 01:06:09,001 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-14 01:06:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure rio_dev_get [2022-07-14 01:06:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_dev_get [2022-07-14 01:06:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~~u16~0~X~~u8~0~X~~u32~0~X~C_INT~X~$Pointer$~TO~C_INT [2022-07-14 01:06:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~~u16~0~X~~u8~0~X~~u32~0~X~C_INT~X~$Pointer$~TO~C_INT [2022-07-14 01:06:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 01:06:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 01:06:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-14 01:06:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-14 01:06:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:06:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:06:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:06:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:06:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:06:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:06:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:06:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:06:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:06:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 01:06:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2022-07-14 01:06:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2022-07-14 01:06:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_8 [2022-07-14 01:06:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_8 [2022-07-14 01:06:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure rio_match_bus [2022-07-14 01:06:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_match_bus [2022-07-14 01:06:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_32 [2022-07-14 01:06:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_32 [2022-07-14 01:06:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-14 01:06:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-14 01:06:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure rio_match_device [2022-07-14 01:06:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_match_device [2022-07-14 01:06:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 01:06:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 01:06:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_8 [2022-07-14 01:06:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_8 [2022-07-14 01:06:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:06:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:06:09,675 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:06:09,677 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:06:10,184 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:06:18,939 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:06:18,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:06:18,952 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:06:18,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:06:18 BoogieIcfgContainer [2022-07-14 01:06:18,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:06:18,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:06:18,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:06:18,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:06:18,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:06:05" (1/3) ... [2022-07-14 01:06:18,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ce13b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:06:18, skipping insertion in model container [2022-07-14 01:06:18,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:06:08" (2/3) ... [2022-07-14 01:06:18,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ce13b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:06:18, skipping insertion in model container [2022-07-14 01:06:18,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:06:18" (3/3) ... [2022-07-14 01:06:18,963 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2022-07-14 01:06:18,975 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:06:18,976 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:06:19,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:06:19,048 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@1d174ef2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@570318ff [2022-07-14 01:06:19,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:06:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 914 states, 670 states have (on average 1.3761194029850747) internal successors, (922), 701 states have internal predecessors, (922), 196 states have call successors, (196), 47 states have call predecessors, (196), 46 states have return successors, (176), 175 states have call predecessors, (176), 176 states have call successors, (176) [2022-07-14 01:06:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 01:06:19,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:06:19,070 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:06:19,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:06:19,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:06:19,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1330153297, now seen corresponding path program 1 times [2022-07-14 01:06:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:06:19,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427307009] [2022-07-14 01:06:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:06:19,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:06:19,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:06:19,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:06:19,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 01:06:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:06:35,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-14 01:06:35,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:06:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-14 01:06:35,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:06:35,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:06:35,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427307009] [2022-07-14 01:06:35,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427307009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:06:35,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:06:35,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 01:06:35,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206589066] [2022-07-14 01:06:35,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:06:35,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 01:06:35,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:06:35,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 01:06:35,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 01:06:35,225 INFO L87 Difference]: Start difference. First operand has 914 states, 670 states have (on average 1.3761194029850747) internal successors, (922), 701 states have internal predecessors, (922), 196 states have call successors, (196), 47 states have call predecessors, (196), 46 states have return successors, (176), 175 states have call predecessors, (176), 176 states have call successors, (176) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:06:35,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:06:35,342 INFO L93 Difference]: Finished difference Result 1823 states and 2664 transitions. [2022-07-14 01:06:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 01:06:35,345 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 84 [2022-07-14 01:06:35,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:06:35,365 INFO L225 Difference]: With dead ends: 1823 [2022-07-14 01:06:35,365 INFO L226 Difference]: Without dead ends: 887 [2022-07-14 01:06:35,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 01:06:35,388 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:06:35,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:06:35,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-07-14 01:06:35,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 887. [2022-07-14 01:06:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 665 states have (on average 1.344360902255639) internal successors, (894), 674 states have internal predecessors, (894), 176 states have call successors, (176), 46 states have call predecessors, (176), 45 states have return successors, (174), 173 states have call predecessors, (174), 174 states have call successors, (174) [2022-07-14 01:06:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1244 transitions. [2022-07-14 01:06:35,520 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1244 transitions. Word has length 84 [2022-07-14 01:06:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:06:35,523 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1244 transitions. [2022-07-14 01:06:35,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 01:06:35,523 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1244 transitions. [2022-07-14 01:06:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 01:06:35,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:06:35,533 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:06:35,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:06:35,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:06:35,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:06:35,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:06:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1244223321, now seen corresponding path program 1 times [2022-07-14 01:06:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:06:35,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79265896] [2022-07-14 01:06:35,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:06:35,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:06:35,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:06:35,756 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:06:35,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 01:06:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:06:51,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 3234 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:06:51,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:06:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-14 01:06:51,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:06:51,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:06:51,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79265896] [2022-07-14 01:06:51,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79265896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:06:51,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:06:51,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:06:51,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105861957] [2022-07-14 01:06:51,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:06:51,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:06:51,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:06:51,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:06:51,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:06:51,194 INFO L87 Difference]: Start difference. First operand 887 states and 1244 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 01:06:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:06:51,693 INFO L93 Difference]: Finished difference Result 2612 states and 3667 transitions. [2022-07-14 01:06:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:06:51,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 84 [2022-07-14 01:06:51,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:06:51,708 INFO L225 Difference]: With dead ends: 2612 [2022-07-14 01:06:51,709 INFO L226 Difference]: Without dead ends: 1737 [2022-07-14 01:06:51,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:06:51,715 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 1191 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:06:51,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 2641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:06:51,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2022-07-14 01:06:51,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1734. [2022-07-14 01:06:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1302 states have (on average 1.34715821812596) internal successors, (1754), 1319 states have internal predecessors, (1754), 341 states have call successors, (341), 91 states have call predecessors, (341), 90 states have return successors, (339), 337 states have call predecessors, (339), 339 states have call successors, (339) [2022-07-14 01:06:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2434 transitions. [2022-07-14 01:06:51,805 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2434 transitions. Word has length 84 [2022-07-14 01:06:51,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:06:51,806 INFO L495 AbstractCegarLoop]: Abstraction has 1734 states and 2434 transitions. [2022-07-14 01:06:51,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 01:06:51,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2434 transitions. [2022-07-14 01:06:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-14 01:06:51,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:06:51,809 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:06:51,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:06:52,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:06:52,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:06:52,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:06:52,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1059971624, now seen corresponding path program 1 times [2022-07-14 01:06:52,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:06:52,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959078326] [2022-07-14 01:06:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:06:52,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:06:52,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:06:52,035 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:06:52,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 01:07:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:07:06,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 3260 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:07:06,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:07:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-14 01:07:07,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:07:07,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:07:07,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959078326] [2022-07-14 01:07:07,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959078326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:07:07,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:07:07,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 01:07:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689454143] [2022-07-14 01:07:07,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:07:07,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:07:07,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:07:07,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:07:07,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:07,297 INFO L87 Difference]: Start difference. First operand 1734 states and 2434 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 01:07:07,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:07:07,435 INFO L93 Difference]: Finished difference Result 5175 states and 7335 transitions. [2022-07-14 01:07:07,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:07:07,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 90 [2022-07-14 01:07:07,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:07:07,462 INFO L225 Difference]: With dead ends: 5175 [2022-07-14 01:07:07,463 INFO L226 Difference]: Without dead ends: 3450 [2022-07-14 01:07:07,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:07,477 INFO L413 NwaCegarLoop]: 1428 mSDtfsCounter, 1191 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:07:07,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 2668 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:07:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2022-07-14 01:07:07,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3446. [2022-07-14 01:07:07,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3446 states, 2589 states have (on average 1.347238315952105) internal successors, (3488), 2622 states have internal predecessors, (3488), 676 states have call successors, (676), 181 states have call predecessors, (676), 180 states have return successors, (708), 670 states have call predecessors, (708), 674 states have call successors, (708) [2022-07-14 01:07:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 4872 transitions. [2022-07-14 01:07:07,676 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 4872 transitions. Word has length 90 [2022-07-14 01:07:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:07:07,677 INFO L495 AbstractCegarLoop]: Abstraction has 3446 states and 4872 transitions. [2022-07-14 01:07:07,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 01:07:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 4872 transitions. [2022-07-14 01:07:07,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-14 01:07:07,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:07:07,688 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:07:07,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-14 01:07:07,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:07:07,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:07:07,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:07:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1482268491, now seen corresponding path program 1 times [2022-07-14 01:07:07,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:07:07,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081054388] [2022-07-14 01:07:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:07:07,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:07:07,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:07:07,920 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:07:07,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 01:07:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:07:23,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 3420 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:07:23,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:07:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-14 01:07:23,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:07:23,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:07:23,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081054388] [2022-07-14 01:07:23,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081054388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:07:23,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:07:23,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:07:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468593890] [2022-07-14 01:07:23,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:07:23,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:07:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:07:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:07:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:23,424 INFO L87 Difference]: Start difference. First operand 3446 states and 4872 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 01:07:23,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:07:23,970 INFO L93 Difference]: Finished difference Result 10206 states and 14403 transitions. [2022-07-14 01:07:23,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:07:23,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2022-07-14 01:07:23,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:07:24,023 INFO L225 Difference]: With dead ends: 10206 [2022-07-14 01:07:24,024 INFO L226 Difference]: Without dead ends: 6772 [2022-07-14 01:07:24,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:24,045 INFO L413 NwaCegarLoop]: 1410 mSDtfsCounter, 1187 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:07:24,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 2617 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:07:24,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6772 states. [2022-07-14 01:07:24,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6772 to 6760. [2022-07-14 01:07:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6760 states, 5079 states have (on average 1.3443591258121677) internal successors, (6828), 5146 states have internal predecessors, (6828), 1320 states have call successors, (1320), 361 states have call predecessors, (1320), 360 states have return successors, (1384), 1308 states have call predecessors, (1384), 1318 states have call successors, (1384) [2022-07-14 01:07:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 9532 transitions. [2022-07-14 01:07:24,354 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 9532 transitions. Word has length 117 [2022-07-14 01:07:24,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:07:24,356 INFO L495 AbstractCegarLoop]: Abstraction has 6760 states and 9532 transitions. [2022-07-14 01:07:24,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 01:07:24,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 9532 transitions. [2022-07-14 01:07:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-14 01:07:24,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:07:24,361 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:07:24,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 01:07:24,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:07:24,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:07:24,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:07:24,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1308063919, now seen corresponding path program 1 times [2022-07-14 01:07:24,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:07:24,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392292274] [2022-07-14 01:07:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:07:24,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:07:24,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:07:24,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:07:24,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 01:07:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:07:39,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 3444 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:07:39,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:07:39,434 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-14 01:07:39,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:07:39,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:07:39,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392292274] [2022-07-14 01:07:39,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392292274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:07:39,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:07:39,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:07:39,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644078054] [2022-07-14 01:07:39,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:07:39,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:07:39,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:07:39,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:07:39,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:39,437 INFO L87 Difference]: Start difference. First operand 6760 states and 9532 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 01:07:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:07:40,069 INFO L93 Difference]: Finished difference Result 19672 states and 27683 transitions. [2022-07-14 01:07:40,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:07:40,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 129 [2022-07-14 01:07:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:07:40,170 INFO L225 Difference]: With dead ends: 19672 [2022-07-14 01:07:40,170 INFO L226 Difference]: Without dead ends: 12924 [2022-07-14 01:07:40,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:40,210 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1171 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:07:40,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 2809 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:07:40,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12924 states. [2022-07-14 01:07:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12924 to 12908. [2022-07-14 01:07:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12908 states, 9683 states have (on average 1.3388412682020034) internal successors, (12964), 9806 states have internal predecessors, (12964), 2528 states have call successors, (2528), 697 states have call predecessors, (2528), 696 states have return successors, (2652), 2508 states have call predecessors, (2652), 2526 states have call successors, (2652) [2022-07-14 01:07:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12908 states to 12908 states and 18144 transitions. [2022-07-14 01:07:40,944 INFO L78 Accepts]: Start accepts. Automaton has 12908 states and 18144 transitions. Word has length 129 [2022-07-14 01:07:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:07:40,944 INFO L495 AbstractCegarLoop]: Abstraction has 12908 states and 18144 transitions. [2022-07-14 01:07:40,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 01:07:40,946 INFO L276 IsEmpty]: Start isEmpty. Operand 12908 states and 18144 transitions. [2022-07-14 01:07:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-14 01:07:40,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:07:40,952 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:07:41,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 01:07:41,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:07:41,168 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:07:41,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:07:41,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1772618993, now seen corresponding path program 1 times [2022-07-14 01:07:41,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:07:41,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162088521] [2022-07-14 01:07:41,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:07:41,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:07:41,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:07:41,269 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:07:41,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 01:07:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:07:57,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 3542 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:07:57,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:07:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-07-14 01:07:57,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:07:57,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:07:57,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162088521] [2022-07-14 01:07:57,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162088521] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:07:57,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:07:57,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:07:57,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791399540] [2022-07-14 01:07:57,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:07:57,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:07:57,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:07:57,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:07:57,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:57,920 INFO L87 Difference]: Start difference. First operand 12908 states and 18144 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:07:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:07:58,751 INFO L93 Difference]: Finished difference Result 35140 states and 49263 transitions. [2022-07-14 01:07:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:07:58,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 165 [2022-07-14 01:07:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:07:58,888 INFO L225 Difference]: With dead ends: 35140 [2022-07-14 01:07:58,888 INFO L226 Difference]: Without dead ends: 22244 [2022-07-14 01:07:59,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:07:59,039 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 920 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:07:59,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 2845 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:07:59,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22244 states. [2022-07-14 01:07:59,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22244 to 22232. [2022-07-14 01:07:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22232 states, 16719 states have (on average 1.3369220647167892) internal successors, (22352), 16886 states have internal predecessors, (22352), 4306 states have call successors, (4306), 1207 states have call predecessors, (4306), 1206 states have return successors, (4450), 4266 states have call predecessors, (4450), 4304 states have call successors, (4450) [2022-07-14 01:08:00,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22232 states to 22232 states and 31108 transitions. [2022-07-14 01:08:00,159 INFO L78 Accepts]: Start accepts. Automaton has 22232 states and 31108 transitions. Word has length 165 [2022-07-14 01:08:00,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:08:00,161 INFO L495 AbstractCegarLoop]: Abstraction has 22232 states and 31108 transitions. [2022-07-14 01:08:00,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:08:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 22232 states and 31108 transitions. [2022-07-14 01:08:00,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-14 01:08:00,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:08:00,174 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 01:08:00,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 01:08:00,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:08:00,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:08:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:08:00,393 INFO L85 PathProgramCache]: Analyzing trace with hash 961848686, now seen corresponding path program 1 times [2022-07-14 01:08:00,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:08:00,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693105841] [2022-07-14 01:08:00,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:08:00,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:08:00,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:08:00,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:08:00,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 01:08:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:08:16,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 3689 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 01:08:16,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:08:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-14 01:08:16,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:08:16,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:08:16,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693105841] [2022-07-14 01:08:16,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693105841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:08:16,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:08:16,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:08:16,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512146188] [2022-07-14 01:08:16,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:08:16,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:08:16,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:08:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:08:16,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:08:16,717 INFO L87 Difference]: Start difference. First operand 22232 states and 31108 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:08:17,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:08:17,433 INFO L93 Difference]: Finished difference Result 33987 states and 47573 transitions. [2022-07-14 01:08:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 01:08:17,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 208 [2022-07-14 01:08:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:08:17,486 INFO L225 Difference]: With dead ends: 33987 [2022-07-14 01:08:17,486 INFO L226 Difference]: Without dead ends: 11719 [2022-07-14 01:08:17,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:08:17,550 INFO L413 NwaCegarLoop]: 1244 mSDtfsCounter, 21 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4963 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:08:17,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4963 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:08:17,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11719 states. [2022-07-14 01:08:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11719 to 11668. [2022-07-14 01:08:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11668 states, 8769 states have (on average 1.334929866575436) internal successors, (11706), 8860 states have internal predecessors, (11706), 2275 states have call successors, (2275), 624 states have call predecessors, (2275), 623 states have return successors, (2346), 2247 states have call predecessors, (2346), 2273 states have call successors, (2346) [2022-07-14 01:08:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11668 states to 11668 states and 16327 transitions. [2022-07-14 01:08:18,033 INFO L78 Accepts]: Start accepts. Automaton has 11668 states and 16327 transitions. Word has length 208 [2022-07-14 01:08:18,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:08:18,034 INFO L495 AbstractCegarLoop]: Abstraction has 11668 states and 16327 transitions. [2022-07-14 01:08:18,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:08:18,034 INFO L276 IsEmpty]: Start isEmpty. Operand 11668 states and 16327 transitions. [2022-07-14 01:08:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-14 01:08:18,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:08:18,045 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1] [2022-07-14 01:08:18,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 01:08:18,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:08:18,275 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:08:18,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:08:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash 303639209, now seen corresponding path program 1 times [2022-07-14 01:08:18,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:08:18,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91493536] [2022-07-14 01:08:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:08:18,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:08:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:08:18,284 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:08:18,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 01:08:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:08:33,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 3695 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:08:33,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:08:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:08:33,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:08:33,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:08:33,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91493536] [2022-07-14 01:08:33,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91493536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:08:33,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:08:33,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:08:33,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590140467] [2022-07-14 01:08:33,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:08:33,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:08:33,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:08:33,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:08:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:08:33,168 INFO L87 Difference]: Start difference. First operand 11668 states and 16327 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:08:33,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:08:33,852 INFO L93 Difference]: Finished difference Result 28412 states and 39780 transitions. [2022-07-14 01:08:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:08:33,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 210 [2022-07-14 01:08:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:08:33,930 INFO L225 Difference]: With dead ends: 28412 [2022-07-14 01:08:33,931 INFO L226 Difference]: Without dead ends: 17189 [2022-07-14 01:08:33,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:08:33,970 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 1178 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:08:33,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 3193 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:08:33,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17189 states. [2022-07-14 01:08:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17189 to 17172. [2022-07-14 01:08:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17172 states, 12941 states have (on average 1.3347500193184452) internal successors, (17273), 13072 states have internal predecessors, (17273), 3313 states have call successors, (3313), 918 states have call predecessors, (3313), 917 states have return successors, (3417), 3273 states have call predecessors, (3417), 3311 states have call successors, (3417) [2022-07-14 01:08:34,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17172 states to 17172 states and 24003 transitions. [2022-07-14 01:08:34,559 INFO L78 Accepts]: Start accepts. Automaton has 17172 states and 24003 transitions. Word has length 210 [2022-07-14 01:08:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:08:34,560 INFO L495 AbstractCegarLoop]: Abstraction has 17172 states and 24003 transitions. [2022-07-14 01:08:34,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:08:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand 17172 states and 24003 transitions. [2022-07-14 01:08:34,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-14 01:08:34,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:08:34,573 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:08:34,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 01:08:34,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:08:34,789 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:08:34,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:08:34,789 INFO L85 PathProgramCache]: Analyzing trace with hash 913834821, now seen corresponding path program 1 times [2022-07-14 01:08:34,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:08:34,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294890676] [2022-07-14 01:08:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:08:34,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:08:34,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:08:34,795 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:08:34,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 01:08:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:08:50,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 3719 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:08:50,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:08:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-14 01:08:50,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:08:50,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:08:50,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294890676] [2022-07-14 01:08:50,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294890676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:08:50,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:08:50,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 01:08:50,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185427733] [2022-07-14 01:08:50,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:08:50,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:08:50,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:08:50,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:08:50,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:08:50,503 INFO L87 Difference]: Start difference. First operand 17172 states and 24003 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:08:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:08:51,301 INFO L93 Difference]: Finished difference Result 42006 states and 58753 transitions. [2022-07-14 01:08:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:08:51,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 222 [2022-07-14 01:08:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:08:51,426 INFO L225 Difference]: With dead ends: 42006 [2022-07-14 01:08:51,427 INFO L226 Difference]: Without dead ends: 25279 [2022-07-14 01:08:51,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:08:51,481 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 1162 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:08:51,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 3179 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:08:51,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25279 states. [2022-07-14 01:08:52,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25279 to 25242. [2022-07-14 01:08:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25242 states, 19075 states have (on average 1.3344692005242464) internal successors, (25455), 19260 states have internal predecessors, (25455), 4823 states have call successors, (4823), 1344 states have call predecessors, (4823), 1343 states have return successors, (4974), 4767 states have call predecessors, (4974), 4821 states have call successors, (4974) [2022-07-14 01:08:52,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25242 states to 25242 states and 35252 transitions. [2022-07-14 01:08:52,577 INFO L78 Accepts]: Start accepts. Automaton has 25242 states and 35252 transitions. Word has length 222 [2022-07-14 01:08:52,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:08:52,578 INFO L495 AbstractCegarLoop]: Abstraction has 25242 states and 35252 transitions. [2022-07-14 01:08:52,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:08:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 25242 states and 35252 transitions. [2022-07-14 01:08:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-14 01:08:52,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:08:52,596 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1] [2022-07-14 01:08:52,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 01:08:52,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:08:52,809 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:08:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:08:52,810 INFO L85 PathProgramCache]: Analyzing trace with hash -723866641, now seen corresponding path program 1 times [2022-07-14 01:08:52,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:08:52,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140255209] [2022-07-14 01:08:52,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:08:52,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:08:52,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:08:52,818 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:08:52,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 01:09:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:09:07,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 3754 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 01:09:07,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:09:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-14 01:09:07,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:09:07,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:09:07,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140255209] [2022-07-14 01:09:07,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140255209] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:09:07,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:09:07,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:09:07,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372852122] [2022-07-14 01:09:07,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:09:07,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:09:07,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:09:07,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:09:07,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:09:07,156 INFO L87 Difference]: Start difference. First operand 25242 states and 35252 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:09:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:09:08,563 INFO L93 Difference]: Finished difference Result 58786 states and 82094 transitions. [2022-07-14 01:09:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 01:09:08,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 229 [2022-07-14 01:09:08,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:09:08,714 INFO L225 Difference]: With dead ends: 58786 [2022-07-14 01:09:08,714 INFO L226 Difference]: Without dead ends: 33989 [2022-07-14 01:09:08,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 01:09:08,788 INFO L413 NwaCegarLoop]: 2436 mSDtfsCounter, 1234 mSDsluCounter, 8474 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 10910 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:09:08,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 10910 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 01:09:08,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33989 states. [2022-07-14 01:09:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33989 to 25334. [2022-07-14 01:09:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25334 states, 19143 states have (on average 1.333281094917202) internal successors, (25523), 19340 states have internal predecessors, (25523), 4835 states have call successors, (4835), 1344 states have call predecessors, (4835), 1355 states have return successors, (5002), 4791 states have call predecessors, (5002), 4833 states have call successors, (5002) [2022-07-14 01:09:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25334 states to 25334 states and 35360 transitions. [2022-07-14 01:09:09,846 INFO L78 Accepts]: Start accepts. Automaton has 25334 states and 35360 transitions. Word has length 229 [2022-07-14 01:09:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:09:09,850 INFO L495 AbstractCegarLoop]: Abstraction has 25334 states and 35360 transitions. [2022-07-14 01:09:09,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 01:09:09,851 INFO L276 IsEmpty]: Start isEmpty. Operand 25334 states and 35360 transitions. [2022-07-14 01:09:09,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-14 01:09:09,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:09:09,875 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:09:10,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 01:09:10,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:09:10,095 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:09:10,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:09:10,095 INFO L85 PathProgramCache]: Analyzing trace with hash 19633893, now seen corresponding path program 1 times [2022-07-14 01:09:10,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:09:10,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072385160] [2022-07-14 01:09:10,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:09:10,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:09:10,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:09:10,102 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:09:10,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 01:09:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:09:24,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 3817 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 01:09:24,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:09:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-07-14 01:09:24,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:09:24,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:09:24,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072385160] [2022-07-14 01:09:24,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072385160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:09:24,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:09:24,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:09:24,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931759985] [2022-07-14 01:09:24,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:09:24,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:09:24,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:09:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:09:24,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:09:24,660 INFO L87 Difference]: Start difference. First operand 25334 states and 35360 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 01:09:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:09:25,428 INFO L93 Difference]: Finished difference Result 50878 states and 71092 transitions. [2022-07-14 01:09:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 01:09:25,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 258 [2022-07-14 01:09:25,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:09:25,539 INFO L225 Difference]: With dead ends: 50878 [2022-07-14 01:09:25,539 INFO L226 Difference]: Without dead ends: 25371 [2022-07-14 01:09:25,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:09:25,624 INFO L413 NwaCegarLoop]: 1236 mSDtfsCounter, 6 mSDsluCounter, 4925 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6161 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:09:25,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6161 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 01:09:25,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25371 states. [2022-07-14 01:09:26,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25371 to 25371. [2022-07-14 01:09:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25371 states, 19180 states have (on average 1.332638164754953) internal successors, (25560), 19377 states have internal predecessors, (25560), 4835 states have call successors, (4835), 1344 states have call predecessors, (4835), 1355 states have return successors, (5002), 4791 states have call predecessors, (5002), 4833 states have call successors, (5002) [2022-07-14 01:09:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25371 states to 25371 states and 35397 transitions. [2022-07-14 01:09:26,601 INFO L78 Accepts]: Start accepts. Automaton has 25371 states and 35397 transitions. Word has length 258 [2022-07-14 01:09:26,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:09:26,602 INFO L495 AbstractCegarLoop]: Abstraction has 25371 states and 35397 transitions. [2022-07-14 01:09:26,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 01:09:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 25371 states and 35397 transitions. [2022-07-14 01:09:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-14 01:09:26,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:09:26,618 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:09:26,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 01:09:26,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:09:26,839 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:09:26,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:09:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1355053615, now seen corresponding path program 1 times [2022-07-14 01:09:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:09:26,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672613859] [2022-07-14 01:09:26,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:09:26,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:09:26,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:09:26,846 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:09:26,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 01:09:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:09:41,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 3828 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 01:09:41,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:09:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-07-14 01:09:41,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:09:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2022-07-14 01:09:41,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:09:41,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672613859] [2022-07-14 01:09:41,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672613859] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:09:41,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 01:09:41,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-14 01:09:41,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76407300] [2022-07-14 01:09:41,747 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 01:09:41,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 01:09:41,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:09:41,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 01:09:41,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 01:09:41,749 INFO L87 Difference]: Start difference. First operand 25371 states and 35397 transitions. Second operand has 11 states, 9 states have (on average 12.222222222222221) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-14 01:09:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:09:43,046 INFO L93 Difference]: Finished difference Result 50952 states and 71166 transitions. [2022-07-14 01:09:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:09:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.222222222222221) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 259 [2022-07-14 01:09:43,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:09:43,247 INFO L225 Difference]: With dead ends: 50952 [2022-07-14 01:09:43,247 INFO L226 Difference]: Without dead ends: 25408 [2022-07-14 01:09:43,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:09:43,383 INFO L413 NwaCegarLoop]: 1236 mSDtfsCounter, 9 mSDsluCounter, 8616 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 9852 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:09:43,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 9852 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 01:09:43,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25408 states. [2022-07-14 01:09:44,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25408 to 25408. [2022-07-14 01:09:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25408 states, 19217 states have (on average 1.3319977103606182) internal successors, (25597), 19414 states have internal predecessors, (25597), 4835 states have call successors, (4835), 1344 states have call predecessors, (4835), 1355 states have return successors, (5002), 4791 states have call predecessors, (5002), 4833 states have call successors, (5002) [2022-07-14 01:09:44,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25408 states to 25408 states and 35434 transitions. [2022-07-14 01:09:44,241 INFO L78 Accepts]: Start accepts. Automaton has 25408 states and 35434 transitions. Word has length 259 [2022-07-14 01:09:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:09:44,242 INFO L495 AbstractCegarLoop]: Abstraction has 25408 states and 35434 transitions. [2022-07-14 01:09:44,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.222222222222221) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-14 01:09:44,242 INFO L276 IsEmpty]: Start isEmpty. Operand 25408 states and 35434 transitions. [2022-07-14 01:09:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-14 01:09:44,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:09:44,258 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:09:44,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 01:09:44,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:09:44,483 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:09:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:09:44,484 INFO L85 PathProgramCache]: Analyzing trace with hash -196607963, now seen corresponding path program 2 times [2022-07-14 01:09:44,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:09:44,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428031857] [2022-07-14 01:09:44,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 01:09:44,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:09:44,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:09:44,490 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:09:44,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 01:09:57,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 01:09:57,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 01:09:58,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 3238 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:09:58,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:09:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2022-07-14 01:09:58,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:09:58,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 01:09:58,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428031857] [2022-07-14 01:09:58,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428031857] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:09:58,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:09:58,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 01:09:58,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872333846] [2022-07-14 01:09:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:09:58,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:09:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 01:09:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:09:58,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:09:58,840 INFO L87 Difference]: Start difference. First operand 25408 states and 35434 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:09:59,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:09:59,337 INFO L93 Difference]: Finished difference Result 47373 states and 65914 transitions. [2022-07-14 01:09:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:09:59,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 260 [2022-07-14 01:09:59,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:09:59,390 INFO L225 Difference]: With dead ends: 47373 [2022-07-14 01:09:59,390 INFO L226 Difference]: Without dead ends: 22412 [2022-07-14 01:09:59,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 01:09:59,432 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 921 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:09:59,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 1026 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:09:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22412 states. [2022-07-14 01:09:59,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22412 to 22412. [2022-07-14 01:09:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22412 states, 17031 states have (on average 1.3286947331336973) internal successors, (22629), 17138 states have internal predecessors, (22629), 4201 states have call successors, (4201), 1168 states have call predecessors, (4201), 1179 states have return successors, (4256), 4157 states have call predecessors, (4256), 4199 states have call successors, (4256) [2022-07-14 01:10:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22412 states to 22412 states and 31086 transitions. [2022-07-14 01:10:00,172 INFO L78 Accepts]: Start accepts. Automaton has 22412 states and 31086 transitions. Word has length 260 [2022-07-14 01:10:00,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:10:00,174 INFO L495 AbstractCegarLoop]: Abstraction has 22412 states and 31086 transitions. [2022-07-14 01:10:00,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:10:00,174 INFO L276 IsEmpty]: Start isEmpty. Operand 22412 states and 31086 transitions. [2022-07-14 01:10:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-14 01:10:00,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:10:00,194 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:10:00,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 01:10:00,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 01:10:00,415 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:10:00,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:10:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1761985865, now seen corresponding path program 1 times [2022-07-14 01:10:00,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 01:10:00,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555312770] [2022-07-14 01:10:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:10:00,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 01:10:00,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 01:10:00,422 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 01:10:00,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process