./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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:01:21,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:01:21,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:01:22,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:01:22,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:01:22,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:01:22,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:01:22,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:01:22,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:01:22,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:01:22,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:01:22,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:01:22,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:01:22,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:01:22,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:01:22,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:01:22,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:01:22,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:01:22,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:01:22,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:01:22,064 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:01:22,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:01:22,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:01:22,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:01:22,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:01:22,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:01:22,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:01:22,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:01:22,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:01:22,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:01:22,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:01:22,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:01:22,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:01:22,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:01:22,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:01:22,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:01:22,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:01:22,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:01:22,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:01:22,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:01:22,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:01:22,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:01:22,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:01:22,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:01:22,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:01:22,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:01:22,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:01:22,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:01:22,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:01:22,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:01:22,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:01:22,122 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:01:22,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:01:22,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:01:22,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:01:22,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:01:22,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:01:22,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:01:22,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:01:22,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:01:22,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:01:22,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:01:22,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:01:22,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:01:22,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:01:22,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:01:22,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:01:22,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:01:22,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:01:22,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:01:22,131 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:01:22,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:01:22,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:01:22,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-07-20 01:01:22,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:01:22,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:01:22,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:01:22,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:01:22,427 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:01:22,428 INFO L432 ainManager$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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:01:22,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c9f7b4d4/da5a571bb7f643808112cac2eca662f7/FLAGba3773d32 [2022-07-20 01:01:23,284 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:01:23,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:01:23,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c9f7b4d4/da5a571bb7f643808112cac2eca662f7/FLAGba3773d32 [2022-07-20 01:01:23,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c9f7b4d4/da5a571bb7f643808112cac2eca662f7 [2022-07-20 01:01:23,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:01:23,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:01:23,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:01:23,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:01:23,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:01:23,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:23" (1/1) ... [2022-07-20 01:01:23,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea5f80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:23, skipping insertion in model container [2022-07-20 01:01:23,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:23" (1/1) ... [2022-07-20 01:01:23,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:01:23,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:01:26,325 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-20 01:01:26,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:01:26,641 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:01:27,158 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: data = data & 4294967171U [8328] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 01:01:27,167 INFO L158 Benchmark]: Toolchain (without parser) took 3336.45ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 55.4MB in the beginning and 70.1MB in the end (delta: -14.7MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2022-07-20 01:01:27,168 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 01:01:27,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3334.63ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 55.1MB in the beginning and 70.1MB in the end (delta: -15.0MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2022-07-20 01:01:27,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3334.63ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 55.1MB in the beginning and 70.1MB in the end (delta: -15.0MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: data = data & 4294967171U [8328] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294967171U [8328]: 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-32_7a-drivers--thunderbolt--thunderbolt.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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:01:29,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:01:29,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:01:29,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:01:29,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:01:29,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:01:29,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:01:29,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:01:29,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:01:29,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:01:29,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:01:29,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:01:29,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:01:29,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:01:29,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:01:29,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:01:29,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:01:29,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:01:29,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:01:29,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:01:29,178 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:01:29,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:01:29,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:01:29,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:01:29,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:01:29,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:01:29,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:01:29,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:01:29,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:01:29,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:01:29,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:01:29,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:01:29,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:01:29,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:01:29,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:01:29,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:01:29,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:01:29,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:01:29,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:01:29,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:01:29,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:01:29,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:01:29,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 01:01:29,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:01:29,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:01:29,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:01:29,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:01:29,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:01:29,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:01:29,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:01:29,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:01:29,239 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:01:29,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:01:29,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:01:29,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:01:29,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:01:29,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:01:29,241 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 01:01:29,250 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 01:01:29,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 01:01:29,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:01:29,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:01:29,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:01:29,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:01:29,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:01:29,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:01:29,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:01:29,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:01:29,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:01:29,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:01:29,253 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 01:01:29,253 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 01:01:29,253 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:01:29,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:01:29,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:01:29,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 01:01:29,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2022-07-20 01:01:29,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:01:29,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:01:29,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:01:29,562 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:01:29,562 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:01:29,564 INFO L432 ainManager$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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:01:29,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adfcc028d/28ccf17f2ee448a9bba46464dec1773a/FLAGf9252f4ed [2022-07-20 01:01:30,421 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:01:30,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:01:30,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adfcc028d/28ccf17f2ee448a9bba46464dec1773a/FLAGf9252f4ed [2022-07-20 01:01:30,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adfcc028d/28ccf17f2ee448a9bba46464dec1773a [2022-07-20 01:01:30,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:01:30,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:01:30,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:01:30,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:01:30,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:01:30,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:30" (1/1) ... [2022-07-20 01:01:30,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5fe83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:30, skipping insertion in model container [2022-07-20 01:01:30,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:01:30" (1/1) ... [2022-07-20 01:01:30,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:01:30,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:01:33,658 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-20 01:01:33,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:01:33,989 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 01:01:34,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:01:34,498 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-20 01:01:34,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:01:34,556 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:01:35,039 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-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2022-07-20 01:01:35,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:01:35,196 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:01:35,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35 WrapperNode [2022-07-20 01:01:35,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:01:35,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:01:35,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:01:35,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:01:35,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,549 INFO L137 Inliner]: procedures = 494, calls = 3867, calls flagged for inlining = 166, calls inlined = 158, statements flattened = 7084 [2022-07-20 01:01:35,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:01:35,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:01:35,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:01:35,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:01:35,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:35,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:01:35,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:01:35,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:01:35,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:01:36,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (1/1) ... [2022-07-20 01:01:36,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:01:36,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:01:36,033 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) [2022-07-20 01:01:36,057 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 [2022-07-20 01:01:36,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-07-20 01:01:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2022-07-20 01:01:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2022-07-20 01:01:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2022-07-20 01:01:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-07-20 01:01:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-07-20 01:01:36,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:01:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:01:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:01:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:01:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2022-07-20 01:01:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2022-07-20 01:01:36,077 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2022-07-20 01:01:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2022-07-20 01:01:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-20 01:01:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-20 01:01:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2022-07-20 01:01:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2022-07-20 01:01:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2022-07-20 01:01:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2022-07-20 01:01:36,078 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2022-07-20 01:01:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2022-07-20 01:01:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2022-07-20 01:01:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2022-07-20 01:01:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2022-07-20 01:01:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2022-07-20 01:01:36,079 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2022-07-20 01:01:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2022-07-20 01:01:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-20 01:01:36,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-20 01:01:36,080 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2022-07-20 01:01:36,081 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2022-07-20 01:01:36,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 01:01:36,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 01:01:36,081 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-20 01:01:36,081 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-20 01:01:36,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2022-07-20 01:01:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2022-07-20 01:01:36,082 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2022-07-20 01:01:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2022-07-20 01:01:36,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:01:36,082 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2022-07-20 01:01:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2022-07-20 01:01:36,082 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2022-07-20 01:01:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2022-07-20 01:01:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 01:01:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 01:01:36,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 01:01:36,084 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 01:01:36,084 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 01:01:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2022-07-20 01:01:36,085 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2022-07-20 01:01:36,085 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2022-07-20 01:01:36,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2022-07-20 01:01:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2022-07-20 01:01:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2022-07-20 01:01:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-07-20 01:01:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-07-20 01:01:36,086 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2022-07-20 01:01:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2022-07-20 01:01:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2022-07-20 01:01:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2022-07-20 01:01:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2022-07-20 01:01:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2022-07-20 01:01:36,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 01:01:36,088 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 01:01:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2022-07-20 01:01:36,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2022-07-20 01:01:36,088 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-20 01:01:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-20 01:01:36,089 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-07-20 01:01:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-07-20 01:01:36,089 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2022-07-20 01:01:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2022-07-20 01:01:36,089 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2022-07-20 01:01:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2022-07-20 01:01:36,090 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2022-07-20 01:01:36,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2022-07-20 01:01:36,090 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2022-07-20 01:01:36,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2022-07-20 01:01:36,090 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-20 01:01:36,090 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-20 01:01:36,091 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2022-07-20 01:01:36,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2022-07-20 01:01:36,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:01:36,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:01:36,091 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2022-07-20 01:01:36,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2022-07-20 01:01:36,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:01:36,092 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2022-07-20 01:01:36,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2022-07-20 01:01:36,093 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-20 01:01:36,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-20 01:01:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:01:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:01:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 01:01:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 01:01:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 01:01:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2022-07-20 01:01:36,094 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2022-07-20 01:01:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2022-07-20 01:01:36,095 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2022-07-20 01:01:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2022-07-20 01:01:36,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2022-07-20 01:01:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 01:01:36,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 01:01:36,096 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 01:01:36,096 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 01:01:36,096 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-20 01:01:36,096 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-20 01:01:36,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 01:01:36,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2022-07-20 01:01:36,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2022-07-20 01:01:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2022-07-20 01:01:36,100 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2022-07-20 01:01:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:01:36,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:01:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-20 01:01:36,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-20 01:01:36,102 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2022-07-20 01:01:36,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2022-07-20 01:01:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 01:01:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2022-07-20 01:01:36,107 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2022-07-20 01:01:36,107 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 01:01:36,107 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 01:01:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2022-07-20 01:01:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2022-07-20 01:01:36,108 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2022-07-20 01:01:36,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2022-07-20 01:01:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 01:01:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 01:01:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 01:01:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 01:01:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 01:01:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:01:36,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:01:36,109 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2022-07-20 01:01:36,109 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2022-07-20 01:01:36,110 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2022-07-20 01:01:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2022-07-20 01:01:36,110 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2022-07-20 01:01:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2022-07-20 01:01:36,110 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2022-07-20 01:01:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2022-07-20 01:01:36,110 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-07-20 01:01:36,110 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-07-20 01:01:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2022-07-20 01:01:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2022-07-20 01:01:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2022-07-20 01:01:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2022-07-20 01:01:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-20 01:01:36,111 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-20 01:01:36,111 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2022-07-20 01:01:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2022-07-20 01:01:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 01:01:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 01:01:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:01:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:01:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2022-07-20 01:01:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2022-07-20 01:01:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2022-07-20 01:01:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2022-07-20 01:01:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-20 01:01:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-20 01:01:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:01:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:01:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2022-07-20 01:01:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2022-07-20 01:01:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2022-07-20 01:01:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2022-07-20 01:01:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2022-07-20 01:01:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2022-07-20 01:01:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 01:01:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 01:01:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2022-07-20 01:01:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2022-07-20 01:01:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2022-07-20 01:01:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2022-07-20 01:01:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2022-07-20 01:01:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2022-07-20 01:01:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-20 01:01:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-20 01:01:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2022-07-20 01:01:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2022-07-20 01:01:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:01:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 01:01:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 01:01:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2022-07-20 01:01:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2022-07-20 01:01:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2022-07-20 01:01:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-20 01:01:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-20 01:01:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 01:01:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2022-07-20 01:01:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2022-07-20 01:01:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2022-07-20 01:01:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-20 01:01:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-20 01:01:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-20 01:01:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-20 01:01:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2022-07-20 01:01:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 01:01:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2022-07-20 01:01:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-20 01:01:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2022-07-20 01:01:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2022-07-20 01:01:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2022-07-20 01:01:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2022-07-20 01:01:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2022-07-20 01:01:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-20 01:01:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2022-07-20 01:01:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2022-07-20 01:01:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2022-07-20 01:01:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2022-07-20 01:01:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 01:01:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2022-07-20 01:01:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 01:01:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 01:01:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 01:01:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 01:01:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:01:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:01:36,212 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2022-07-20 01:01:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2022-07-20 01:01:36,212 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2022-07-20 01:01:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2022-07-20 01:01:36,212 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2022-07-20 01:01:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2022-07-20 01:01:36,212 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2022-07-20 01:01:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2022-07-20 01:01:36,213 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2022-07-20 01:01:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-20 01:01:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2022-07-20 01:01:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-20 01:01:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2022-07-20 01:01:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2022-07-20 01:01:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2022-07-20 01:01:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2022-07-20 01:01:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2022-07-20 01:01:36,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-07-20 01:01:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2022-07-20 01:01:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2022-07-20 01:01:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2022-07-20 01:01:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-07-20 01:01:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2022-07-20 01:01:37,261 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:01:37,267 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:01:38,231 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:03:41,022 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:03:41,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:03:41,043 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:03:41,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:03:41 BoogieIcfgContainer [2022-07-20 01:03:41,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:03:41,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:03:41,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:03:41,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:03:41,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:01:30" (1/3) ... [2022-07-20 01:03:41,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c066a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:03:41, skipping insertion in model container [2022-07-20 01:03:41,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:01:35" (2/3) ... [2022-07-20 01:03:41,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c066a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:03:41, skipping insertion in model container [2022-07-20 01:03:41,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:03:41" (3/3) ... [2022-07-20 01:03:41,056 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2022-07-20 01:03:41,071 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:03:41,071 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:03:41,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:03:41,181 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@2b7252ab, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@57ad3f11 [2022-07-20 01:03:41,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:03:41,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2022-07-20 01:03:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-20 01:03:41,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:03:41,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:03:41,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:03:41,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:03:41,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1765604170, now seen corresponding path program 1 times [2022-07-20 01:03:41,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:03:41,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807003675] [2022-07-20 01:03:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:03:41,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:03:41,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:03:41,245 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) [2022-07-20 01:03:41,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 01:03:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:03:42,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-20 01:03:42,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:03:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:03:42,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:03:42,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:03:42,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807003675] [2022-07-20 01:03:42,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807003675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:03:42,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:03:42,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:03:42,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989625410] [2022-07-20 01:03:42,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:03:42,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 01:03:42,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:03:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 01:03:42,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 01:03:42,494 INFO L87 Difference]: Start difference. First operand has 2542 states, 1707 states have (on average 1.328646748681898) internal successors, (2268), 1754 states have internal predecessors, (2268), 701 states have call successors, (701), 133 states have call predecessors, (701), 132 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:42,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:03:42,733 INFO L93 Difference]: Finished difference Result 5079 states and 7591 transitions. [2022-07-20 01:03:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 01:03:42,735 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-07-20 01:03:42,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:03:42,769 INFO L225 Difference]: With dead ends: 5079 [2022-07-20 01:03:42,769 INFO L226 Difference]: Without dead ends: 2529 [2022-07-20 01:03:42,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 01:03:42,798 INFO L413 NwaCegarLoop]: 3650 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, 3650 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 [2022-07-20 01:03:42,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:03:42,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2529 states. [2022-07-20 01:03:42,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2529 to 2529. [2022-07-20 01:03:42,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1702 states have (on average 1.3243243243243243) internal successors, (2254), 1741 states have internal predecessors, (2254), 695 states have call successors, (695), 132 states have call predecessors, (695), 131 states have return successors, (684), 680 states have call predecessors, (684), 684 states have call successors, (684) [2022-07-20 01:03:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3633 transitions. [2022-07-20 01:03:43,018 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3633 transitions. Word has length 35 [2022-07-20 01:03:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:03:43,019 INFO L495 AbstractCegarLoop]: Abstraction has 2529 states and 3633 transitions. [2022-07-20 01:03:43,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3633 transitions. [2022-07-20 01:03:43,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-20 01:03:43,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:03:43,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:03:43,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 01:03:43,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:03:43,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:03:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:03:43,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1899617676, now seen corresponding path program 1 times [2022-07-20 01:03:43,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:03:43,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47197893] [2022-07-20 01:03:43,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:03:43,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:03:43,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:03:43,250 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) [2022-07-20 01:03:43,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 01:03:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:03:44,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:03:44,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:03:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:03:44,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:03:44,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:03:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47197893] [2022-07-20 01:03:44,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47197893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:03:44,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:03:44,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:03:44,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448836071] [2022-07-20 01:03:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:03:44,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:03:44,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:03:44,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:03:44,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:44,561 INFO L87 Difference]: Start difference. First operand 2529 states and 3633 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:45,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:03:45,164 INFO L93 Difference]: Finished difference Result 7515 states and 10870 transitions. [2022-07-20 01:03:45,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:03:45,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-07-20 01:03:45,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:03:45,205 INFO L225 Difference]: With dead ends: 7515 [2022-07-20 01:03:45,205 INFO L226 Difference]: Without dead ends: 4994 [2022-07-20 01:03:45,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:45,228 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 3540 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:03:45,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 7968 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 01:03:45,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2022-07-20 01:03:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 4972. [2022-07-20 01:03:45,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4972 states, 3348 states have (on average 1.3255675029868579) internal successors, (4438), 3420 states have internal predecessors, (4438), 1366 states have call successors, (1366), 263 states have call predecessors, (1366), 257 states have return successors, (1380), 1338 states have call predecessors, (1380), 1355 states have call successors, (1380) [2022-07-20 01:03:45,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 7184 transitions. [2022-07-20 01:03:45,598 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 7184 transitions. Word has length 35 [2022-07-20 01:03:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:03:45,598 INFO L495 AbstractCegarLoop]: Abstraction has 4972 states and 7184 transitions. [2022-07-20 01:03:45,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 7184 transitions. [2022-07-20 01:03:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-20 01:03:45,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:03:45,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:03:45,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:03:45,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:03:45,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:03:45,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:03:45,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2138293771, now seen corresponding path program 1 times [2022-07-20 01:03:45,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:03:45,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585564429] [2022-07-20 01:03:45,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:03:45,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:03:45,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:03:45,829 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) [2022-07-20 01:03:45,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 01:03:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:03:46,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:03:46,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:03:47,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:03:47,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:03:47,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:03:47,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585564429] [2022-07-20 01:03:47,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585564429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:03:47,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:03:47,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:03:47,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924164666] [2022-07-20 01:03:47,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:03:47,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:03:47,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:03:47,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:03:47,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:47,117 INFO L87 Difference]: Start difference. First operand 4972 states and 7184 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:47,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:03:47,715 INFO L93 Difference]: Finished difference Result 12447 states and 18110 transitions. [2022-07-20 01:03:47,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:03:47,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-07-20 01:03:47,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:03:47,780 INFO L225 Difference]: With dead ends: 12447 [2022-07-20 01:03:47,781 INFO L226 Difference]: Without dead ends: 7483 [2022-07-20 01:03:47,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:47,821 INFO L413 NwaCegarLoop]: 4343 mSDtfsCounter, 3608 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 7994 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:03:47,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 7994 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:03:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7483 states. [2022-07-20 01:03:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 7461. [2022-07-20 01:03:48,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7461 states, 5027 states have (on average 1.324447980903123) internal successors, (6658), 5128 states have internal predecessors, (6658), 2045 states have call successors, (2045), 394 states have call predecessors, (2045), 388 states have return successors, (2122), 2013 states have call predecessors, (2122), 2034 states have call successors, (2122) [2022-07-20 01:03:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7461 states to 7461 states and 10825 transitions. [2022-07-20 01:03:48,201 INFO L78 Accepts]: Start accepts. Automaton has 7461 states and 10825 transitions. Word has length 36 [2022-07-20 01:03:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:03:48,202 INFO L495 AbstractCegarLoop]: Abstraction has 7461 states and 10825 transitions. [2022-07-20 01:03:48,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 7461 states and 10825 transitions. [2022-07-20 01:03:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-20 01:03:48,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:03:48,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:03:48,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:03:48,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:03:48,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:03:48,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:03:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2064385685, now seen corresponding path program 1 times [2022-07-20 01:03:48,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:03:48,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696671398] [2022-07-20 01:03:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:03:48,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:03:48,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:03:48,434 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) [2022-07-20 01:03:48,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 01:03:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:03:49,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:03:49,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:03:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:03:49,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:03:49,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:03:49,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696671398] [2022-07-20 01:03:49,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696671398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:03:49,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:03:49,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:03:49,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119411138] [2022-07-20 01:03:49,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:03:49,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:03:49,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:03:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:03:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:49,680 INFO L87 Difference]: Start difference. First operand 7461 states and 10825 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:50,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:03:50,316 INFO L93 Difference]: Finished difference Result 17422 states and 25485 transitions. [2022-07-20 01:03:50,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:03:50,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-20 01:03:50,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:03:50,388 INFO L225 Difference]: With dead ends: 17422 [2022-07-20 01:03:50,389 INFO L226 Difference]: Without dead ends: 9969 [2022-07-20 01:03:50,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:50,439 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 3609 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 7961 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:03:50,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 7961 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:03:50,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2022-07-20 01:03:50,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9947. [2022-07-20 01:03:50,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9947 states, 6705 states have (on average 1.3237882177479492) internal successors, (8876), 6835 states have internal predecessors, (8876), 2722 states have call successors, (2722), 525 states have call predecessors, (2722), 519 states have return successors, (2887), 2686 states have call predecessors, (2887), 2711 states have call successors, (2887) [2022-07-20 01:03:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9947 states to 9947 states and 14485 transitions. [2022-07-20 01:03:50,947 INFO L78 Accepts]: Start accepts. Automaton has 9947 states and 14485 transitions. Word has length 37 [2022-07-20 01:03:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:03:50,947 INFO L495 AbstractCegarLoop]: Abstraction has 9947 states and 14485 transitions. [2022-07-20 01:03:50,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:50,949 INFO L276 IsEmpty]: Start isEmpty. Operand 9947 states and 14485 transitions. [2022-07-20 01:03:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-20 01:03:50,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:03:50,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:03:50,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 01:03:51,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:03:51,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:03:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:03:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash 267621922, now seen corresponding path program 1 times [2022-07-20 01:03:51,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:03:51,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600940278] [2022-07-20 01:03:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:03:51,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:03:51,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:03:51,167 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) [2022-07-20 01:03:51,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 01:03:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:03:52,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:03:52,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:03:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:03:52,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:03:52,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:03:52,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600940278] [2022-07-20 01:03:52,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600940278] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:03:52,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:03:52,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:03:52,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855254209] [2022-07-20 01:03:52,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:03:52,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:03:52,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:03:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:03:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:52,389 INFO L87 Difference]: Start difference. First operand 9947 states and 14485 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:03:53,092 INFO L93 Difference]: Finished difference Result 22272 states and 32683 transitions. [2022-07-20 01:03:53,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:03:53,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-07-20 01:03:53,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:03:53,162 INFO L225 Difference]: With dead ends: 22272 [2022-07-20 01:03:53,163 INFO L226 Difference]: Without dead ends: 12333 [2022-07-20 01:03:53,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:53,200 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 3610 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3610 SdHoareTripleChecker+Valid, 7960 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:03:53,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3610 Valid, 7960 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:03:53,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12333 states. [2022-07-20 01:03:53,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12333 to 12311. [2022-07-20 01:03:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12311 states, 8301 states have (on average 1.3232140705939044) internal successors, (10984), 8457 states have internal predecessors, (10984), 3361 states have call successors, (3361), 654 states have call predecessors, (3361), 648 states have return successors, (3583), 3322 states have call predecessors, (3583), 3350 states have call successors, (3583) [2022-07-20 01:03:53,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12311 states to 12311 states and 17928 transitions. [2022-07-20 01:03:53,689 INFO L78 Accepts]: Start accepts. Automaton has 12311 states and 17928 transitions. Word has length 38 [2022-07-20 01:03:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:03:53,690 INFO L495 AbstractCegarLoop]: Abstraction has 12311 states and 17928 transitions. [2022-07-20 01:03:53,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 12311 states and 17928 transitions. [2022-07-20 01:03:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-20 01:03:53,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:03:53,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:03:53,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 01:03:53,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:03:53,913 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:03:53,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:03:53,913 INFO L85 PathProgramCache]: Analyzing trace with hash 98713607, now seen corresponding path program 1 times [2022-07-20 01:03:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:03:53,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246568414] [2022-07-20 01:03:53,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:03:53,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:03:53,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:03:53,916 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) [2022-07-20 01:03:53,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 01:03:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:03:54,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:03:54,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:03:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:03:55,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:03:55,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:03:55,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246568414] [2022-07-20 01:03:55,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246568414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:03:55,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:03:55,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:03:55,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086723741] [2022-07-20 01:03:55,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:03:55,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:03:55,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:03:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:03:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:55,008 INFO L87 Difference]: Start difference. First operand 12311 states and 17928 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:55,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:03:55,732 INFO L93 Difference]: Finished difference Result 36838 states and 53658 transitions. [2022-07-20 01:03:55,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:03:55,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2022-07-20 01:03:55,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:03:55,850 INFO L225 Difference]: With dead ends: 36838 [2022-07-20 01:03:55,851 INFO L226 Difference]: Without dead ends: 24535 [2022-07-20 01:03:55,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:55,906 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 3591 mSDsluCounter, 3607 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 8171 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:03:55,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3591 Valid, 8171 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:03:55,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2022-07-20 01:03:56,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 24527. [2022-07-20 01:03:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24527 states, 16530 states have (on average 1.3225650332728374) internal successors, (21862), 16832 states have internal predecessors, (21862), 6700 states have call successors, (6700), 1307 states have call predecessors, (6700), 1296 states have return successors, (7155), 6633 states have call predecessors, (7155), 6689 states have call successors, (7155) [2022-07-20 01:03:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24527 states to 24527 states and 35717 transitions. [2022-07-20 01:03:57,106 INFO L78 Accepts]: Start accepts. Automaton has 24527 states and 35717 transitions. Word has length 36 [2022-07-20 01:03:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:03:57,107 INFO L495 AbstractCegarLoop]: Abstraction has 24527 states and 35717 transitions. [2022-07-20 01:03:57,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 24527 states and 35717 transitions. [2022-07-20 01:03:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-20 01:03:57,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:03:57,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:03:57,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 01:03:57,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:03:57,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:03:57,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:03:57,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1619670549, now seen corresponding path program 1 times [2022-07-20 01:03:57,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:03:57,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030104306] [2022-07-20 01:03:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:03:57,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:03:57,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:03:57,337 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) [2022-07-20 01:03:57,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 01:03:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:03:58,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:03:58,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:03:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:03:58,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:03:58,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:03:58,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030104306] [2022-07-20 01:03:58,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030104306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:03:58,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:03:58,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:03:58,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960548331] [2022-07-20 01:03:58,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:03:58,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:03:58,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:03:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:03:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:58,698 INFO L87 Difference]: Start difference. First operand 24527 states and 35717 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:03:59,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:03:59,601 INFO L93 Difference]: Finished difference Result 49026 states and 71375 transitions. [2022-07-20 01:03:59,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:03:59,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-07-20 01:03:59,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:03:59,744 INFO L225 Difference]: With dead ends: 49026 [2022-07-20 01:03:59,744 INFO L226 Difference]: Without dead ends: 24507 [2022-07-20 01:03:59,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:03:59,865 INFO L413 NwaCegarLoop]: 3628 mSDtfsCounter, 3618 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:03:59,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 3628 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:03:59,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24507 states. [2022-07-20 01:04:00,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24507 to 24507. [2022-07-20 01:04:00,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24507 states, 16520 states have (on average 1.3221549636803873) internal successors, (21842), 16822 states have internal predecessors, (21842), 6690 states have call successors, (6690), 1307 states have call predecessors, (6690), 1296 states have return successors, (7125), 6623 states have call predecessors, (7125), 6679 states have call successors, (7125) [2022-07-20 01:04:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24507 states to 24507 states and 35657 transitions. [2022-07-20 01:04:01,024 INFO L78 Accepts]: Start accepts. Automaton has 24507 states and 35657 transitions. Word has length 38 [2022-07-20 01:04:01,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:01,027 INFO L495 AbstractCegarLoop]: Abstraction has 24507 states and 35657 transitions. [2022-07-20 01:04:01,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:01,027 INFO L276 IsEmpty]: Start isEmpty. Operand 24507 states and 35657 transitions. [2022-07-20 01:04:01,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-20 01:04:01,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:01,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:01,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:01,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:01,242 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:01,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:01,243 INFO L85 PathProgramCache]: Analyzing trace with hash 131108824, now seen corresponding path program 1 times [2022-07-20 01:04:01,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:01,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793137458] [2022-07-20 01:04:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:01,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:01,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:01,246 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) [2022-07-20 01:04:01,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 01:04:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:02,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:02,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:02,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:02,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:02,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793137458] [2022-07-20 01:04:02,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793137458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:02,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:02,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:04:02,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530571960] [2022-07-20 01:04:02,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:02,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:02,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:02,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:02,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:02,688 INFO L87 Difference]: Start difference. First operand 24507 states and 35657 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:03,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:03,486 INFO L93 Difference]: Finished difference Result 48986 states and 71255 transitions. [2022-07-20 01:04:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:03,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-07-20 01:04:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:03,592 INFO L225 Difference]: With dead ends: 48986 [2022-07-20 01:04:03,593 INFO L226 Difference]: Without dead ends: 24487 [2022-07-20 01:04:03,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:03,678 INFO L413 NwaCegarLoop]: 3624 mSDtfsCounter, 3613 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3613 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:03,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3613 Valid, 3624 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24487 states. [2022-07-20 01:04:05,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24487 to 24487. [2022-07-20 01:04:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24487 states, 16510 states have (on average 1.3217443973349485) internal successors, (21822), 16812 states have internal predecessors, (21822), 6680 states have call successors, (6680), 1307 states have call predecessors, (6680), 1296 states have return successors, (7095), 6613 states have call predecessors, (7095), 6669 states have call successors, (7095) [2022-07-20 01:04:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24487 states to 24487 states and 35597 transitions. [2022-07-20 01:04:05,452 INFO L78 Accepts]: Start accepts. Automaton has 24487 states and 35597 transitions. Word has length 39 [2022-07-20 01:04:05,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:05,452 INFO L495 AbstractCegarLoop]: Abstraction has 24487 states and 35597 transitions. [2022-07-20 01:04:05,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 24487 states and 35597 transitions. [2022-07-20 01:04:05,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-20 01:04:05,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:05,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:05,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:05,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:05,667 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:05,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:05,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1163074537, now seen corresponding path program 1 times [2022-07-20 01:04:05,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:05,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732424563] [2022-07-20 01:04:05,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:05,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:05,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:05,672 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) [2022-07-20 01:04:05,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 01:04:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:06,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:06,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:06,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:06,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:06,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732424563] [2022-07-20 01:04:06,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732424563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:06,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:06,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:04:06,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409033321] [2022-07-20 01:04:06,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:06,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:06,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:06,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:06,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:06,817 INFO L87 Difference]: Start difference. First operand 24487 states and 35597 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 01:04:08,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:08,165 INFO L93 Difference]: Finished difference Result 66377 states and 96024 transitions. [2022-07-20 01:04:08,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:08,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2022-07-20 01:04:08,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:08,361 INFO L225 Difference]: With dead ends: 66377 [2022-07-20 01:04:08,361 INFO L226 Difference]: Without dead ends: 41898 [2022-07-20 01:04:08,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:08,470 INFO L413 NwaCegarLoop]: 5069 mSDtfsCounter, 2567 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 8670 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:08,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 8670 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:04:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41898 states. [2022-07-20 01:04:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41898 to 41873. [2022-07-20 01:04:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41873 states, 28223 states have (on average 1.3192431704638061) internal successors, (37233), 28735 states have internal predecessors, (37233), 11275 states have call successors, (11275), 2395 states have call predecessors, (11275), 2374 states have return successors, (11890), 11154 states have call predecessors, (11890), 11264 states have call successors, (11890) [2022-07-20 01:04:10,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41873 states to 41873 states and 60398 transitions. [2022-07-20 01:04:10,407 INFO L78 Accepts]: Start accepts. Automaton has 41873 states and 60398 transitions. Word has length 41 [2022-07-20 01:04:10,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:10,408 INFO L495 AbstractCegarLoop]: Abstraction has 41873 states and 60398 transitions. [2022-07-20 01:04:10,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-20 01:04:10,408 INFO L276 IsEmpty]: Start isEmpty. Operand 41873 states and 60398 transitions. [2022-07-20 01:04:10,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-20 01:04:10,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:10,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:10,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:10,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:10,609 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:10,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1958220894, now seen corresponding path program 1 times [2022-07-20 01:04:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:10,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024831989] [2022-07-20 01:04:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:10,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:10,612 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) [2022-07-20 01:04:10,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 01:04:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:11,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:11,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:12,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:12,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:12,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024831989] [2022-07-20 01:04:12,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024831989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:12,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:12,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:04:12,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025139135] [2022-07-20 01:04:12,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:12,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:12,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:12,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:12,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:12,054 INFO L87 Difference]: Start difference. First operand 41873 states and 60398 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:13,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:13,466 INFO L93 Difference]: Finished difference Result 83698 states and 120687 transitions. [2022-07-20 01:04:13,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:13,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-07-20 01:04:13,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:13,696 INFO L225 Difference]: With dead ends: 83698 [2022-07-20 01:04:13,696 INFO L226 Difference]: Without dead ends: 41833 [2022-07-20 01:04:13,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:13,886 INFO L413 NwaCegarLoop]: 3620 mSDtfsCounter, 3608 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:13,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 3620 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41833 states. [2022-07-20 01:04:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41833 to 41833. [2022-07-20 01:04:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41833 states, 28203 states have (on average 1.3187604155586286) internal successors, (37193), 28715 states have internal predecessors, (37193), 11255 states have call successors, (11255), 2395 states have call predecessors, (11255), 2374 states have return successors, (11830), 11134 states have call predecessors, (11830), 11244 states have call successors, (11830) [2022-07-20 01:04:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41833 states to 41833 states and 60278 transitions. [2022-07-20 01:04:15,870 INFO L78 Accepts]: Start accepts. Automaton has 41833 states and 60278 transitions. Word has length 40 [2022-07-20 01:04:15,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:15,871 INFO L495 AbstractCegarLoop]: Abstraction has 41833 states and 60278 transitions. [2022-07-20 01:04:15,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:15,871 INFO L276 IsEmpty]: Start isEmpty. Operand 41833 states and 60278 transitions. [2022-07-20 01:04:15,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-20 01:04:15,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:15,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:15,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:16,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:16,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:16,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:16,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1463119151, now seen corresponding path program 1 times [2022-07-20 01:04:16,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:16,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637419785] [2022-07-20 01:04:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:16,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:16,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:16,080 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) [2022-07-20 01:04:16,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 01:04:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:16,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:16,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:17,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:17,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:17,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637419785] [2022-07-20 01:04:17,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637419785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:17,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:17,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:04:17,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937458903] [2022-07-20 01:04:17,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:17,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:17,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:17,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:17,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:17,313 INFO L87 Difference]: Start difference. First operand 41833 states and 60278 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:18,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:18,757 INFO L93 Difference]: Finished difference Result 83122 states and 119679 transitions. [2022-07-20 01:04:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:18,757 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-20 01:04:18,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:18,947 INFO L225 Difference]: With dead ends: 83122 [2022-07-20 01:04:18,948 INFO L226 Difference]: Without dead ends: 41297 [2022-07-20 01:04:19,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:19,242 INFO L413 NwaCegarLoop]: 3578 mSDtfsCounter, 3565 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3565 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:19,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3565 Valid, 3578 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41297 states. [2022-07-20 01:04:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41297 to 41297. [2022-07-20 01:04:20,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41297 states, 27827 states have (on average 1.3165989865957524) internal successors, (36637), 28335 states have internal predecessors, (36637), 11115 states have call successors, (11115), 2375 states have call predecessors, (11115), 2354 states have return successors, (11638), 10998 states have call predecessors, (11638), 11104 states have call successors, (11638) [2022-07-20 01:04:20,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41297 states to 41297 states and 59390 transitions. [2022-07-20 01:04:20,864 INFO L78 Accepts]: Start accepts. Automaton has 41297 states and 59390 transitions. Word has length 41 [2022-07-20 01:04:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:20,865 INFO L495 AbstractCegarLoop]: Abstraction has 41297 states and 59390 transitions. [2022-07-20 01:04:20,865 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 41297 states and 59390 transitions. [2022-07-20 01:04:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-20 01:04:20,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:20,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:20,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:21,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:21,079 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:21,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash 993998376, now seen corresponding path program 1 times [2022-07-20 01:04:21,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:21,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329184184] [2022-07-20 01:04:21,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:21,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:21,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:21,082 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) [2022-07-20 01:04:21,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 01:04:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:21,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:21,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:22,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:22,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:22,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329184184] [2022-07-20 01:04:22,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329184184] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:22,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:22,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:04:22,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425821341] [2022-07-20 01:04:22,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:22,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:22,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:22,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:22,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:22,938 INFO L87 Difference]: Start difference. First operand 41297 states and 59390 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:23,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:23,978 INFO L93 Difference]: Finished difference Result 41299 states and 59391 transitions. [2022-07-20 01:04:23,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:23,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-07-20 01:04:23,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:24,145 INFO L225 Difference]: With dead ends: 41299 [2022-07-20 01:04:24,145 INFO L226 Difference]: Without dead ends: 41296 [2022-07-20 01:04:24,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:24,169 INFO L413 NwaCegarLoop]: 3576 mSDtfsCounter, 3540 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3540 SdHoareTripleChecker+Valid, 3576 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 [2022-07-20 01:04:24,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3540 Valid, 3576 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:04:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41296 states. [2022-07-20 01:04:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41296 to 41296. [2022-07-20 01:04:25,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41296 states, 27827 states have (on average 1.3165630502749128) internal successors, (36636), 28334 states have internal predecessors, (36636), 11114 states have call successors, (11114), 2375 states have call predecessors, (11114), 2354 states have return successors, (11638), 10998 states have call predecessors, (11638), 11104 states have call successors, (11638) [2022-07-20 01:04:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41296 states to 41296 states and 59388 transitions. [2022-07-20 01:04:25,864 INFO L78 Accepts]: Start accepts. Automaton has 41296 states and 59388 transitions. Word has length 40 [2022-07-20 01:04:25,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:25,865 INFO L495 AbstractCegarLoop]: Abstraction has 41296 states and 59388 transitions. [2022-07-20 01:04:25,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:25,865 INFO L276 IsEmpty]: Start isEmpty. Operand 41296 states and 59388 transitions. [2022-07-20 01:04:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-20 01:04:25,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:25,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:25,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-20 01:04:26,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:26,067 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:26,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:26,068 INFO L85 PathProgramCache]: Analyzing trace with hash 747995506, now seen corresponding path program 1 times [2022-07-20 01:04:26,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:26,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618239870] [2022-07-20 01:04:26,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:26,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:26,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:26,070 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) [2022-07-20 01:04:26,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 01:04:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:27,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:27,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:28,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:28,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:28,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618239870] [2022-07-20 01:04:28,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618239870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:28,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:28,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:04:28,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689119989] [2022-07-20 01:04:28,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:28,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:28,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:28,267 INFO L87 Difference]: Start difference. First operand 41296 states and 59388 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:29,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:29,311 INFO L93 Difference]: Finished difference Result 48114 states and 68097 transitions. [2022-07-20 01:04:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:29,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-20 01:04:29,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:29,496 INFO L225 Difference]: With dead ends: 48114 [2022-07-20 01:04:29,496 INFO L226 Difference]: Without dead ends: 48110 [2022-07-20 01:04:29,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:29,521 INFO L413 NwaCegarLoop]: 4087 mSDtfsCounter, 1067 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:29,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 7109 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:29,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48110 states. [2022-07-20 01:04:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48110 to 48106. [2022-07-20 01:04:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48106 states, 32312 states have (on average 1.303664273334984) internal successors, (42124), 32945 states have internal predecessors, (42124), 12694 states have call successors, (12694), 3120 states have call predecessors, (12694), 3099 states have return successors, (13252), 12580 states have call predecessors, (13252), 12686 states have call successors, (13252) [2022-07-20 01:04:31,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48106 states to 48106 states and 68070 transitions. [2022-07-20 01:04:31,575 INFO L78 Accepts]: Start accepts. Automaton has 48106 states and 68070 transitions. Word has length 41 [2022-07-20 01:04:31,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:31,576 INFO L495 AbstractCegarLoop]: Abstraction has 48106 states and 68070 transitions. [2022-07-20 01:04:31,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 48106 states and 68070 transitions. [2022-07-20 01:04:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-20 01:04:31,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:31,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:31,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:31,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:31,778 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:31,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:31,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1711845995, now seen corresponding path program 1 times [2022-07-20 01:04:31,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:31,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757954314] [2022-07-20 01:04:31,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:31,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:31,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:31,781 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) [2022-07-20 01:04:31,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 01:04:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:32,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:32,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:33,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:33,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:33,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757954314] [2022-07-20 01:04:33,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757954314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:33,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:33,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:04:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961000171] [2022-07-20 01:04:33,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:33,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:33,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:33,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:33,711 INFO L87 Difference]: Start difference. First operand 48106 states and 68070 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:34,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:34,767 INFO L93 Difference]: Finished difference Result 49400 states and 69256 transitions. [2022-07-20 01:04:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:34,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-07-20 01:04:34,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:34,934 INFO L225 Difference]: With dead ends: 49400 [2022-07-20 01:04:34,934 INFO L226 Difference]: Without dead ends: 49396 [2022-07-20 01:04:34,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:34,964 INFO L413 NwaCegarLoop]: 3587 mSDtfsCounter, 3213 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:34,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 3981 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49396 states. [2022-07-20 01:04:36,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49396 to 49392. [2022-07-20 01:04:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49392 states, 33214 states have (on average 1.2977961100740651) internal successors, (43105), 33845 states have internal predecessors, (43105), 12782 states have call successors, (12782), 3416 states have call predecessors, (12782), 3395 states have return successors, (13342), 12670 states have call predecessors, (13342), 12776 states have call successors, (13342) [2022-07-20 01:04:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49392 states to 49392 states and 69229 transitions. [2022-07-20 01:04:36,976 INFO L78 Accepts]: Start accepts. Automaton has 49392 states and 69229 transitions. Word has length 42 [2022-07-20 01:04:36,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:36,976 INFO L495 AbstractCegarLoop]: Abstraction has 49392 states and 69229 transitions. [2022-07-20 01:04:36,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:36,977 INFO L276 IsEmpty]: Start isEmpty. Operand 49392 states and 69229 transitions. [2022-07-20 01:04:36,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-20 01:04:36,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:36,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:36,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:37,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:37,183 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:37,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:37,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1526444949, now seen corresponding path program 1 times [2022-07-20 01:04:37,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:37,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179860432] [2022-07-20 01:04:37,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:37,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:37,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:37,186 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:04:37,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 01:04:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:37,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:37,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:39,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:39,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:39,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179860432] [2022-07-20 01:04:39,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179860432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:39,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:39,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:04:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203840330] [2022-07-20 01:04:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:39,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:39,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:39,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:39,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:39,221 INFO L87 Difference]: Start difference. First operand 49392 states and 69229 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:40,487 INFO L93 Difference]: Finished difference Result 50812 states and 70455 transitions. [2022-07-20 01:04:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:40,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-07-20 01:04:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:40,914 INFO L225 Difference]: With dead ends: 50812 [2022-07-20 01:04:40,914 INFO L226 Difference]: Without dead ends: 50808 [2022-07-20 01:04:40,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:40,940 INFO L413 NwaCegarLoop]: 3583 mSDtfsCounter, 3221 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:40,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3221 Valid, 3920 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50808 states. [2022-07-20 01:04:42,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50808 to 50806. [2022-07-20 01:04:42,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50806 states, 34186 states have (on average 1.290118762066343) internal successors, (44104), 34815 states have internal predecessors, (44104), 12864 states have call successors, (12864), 3776 states have call predecessors, (12864), 3755 states have return successors, (13426), 12754 states have call predecessors, (13426), 12860 states have call successors, (13426) [2022-07-20 01:04:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50806 states to 50806 states and 70394 transitions. [2022-07-20 01:04:42,931 INFO L78 Accepts]: Start accepts. Automaton has 50806 states and 70394 transitions. Word has length 43 [2022-07-20 01:04:42,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:42,932 INFO L495 AbstractCegarLoop]: Abstraction has 50806 states and 70394 transitions. [2022-07-20 01:04:42,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 50806 states and 70394 transitions. [2022-07-20 01:04:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-20 01:04:42,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:42,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:42,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:43,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:43,134 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:43,134 INFO L85 PathProgramCache]: Analyzing trace with hash 73984686, now seen corresponding path program 1 times [2022-07-20 01:04:43,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:43,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381103619] [2022-07-20 01:04:43,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:43,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:43,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:43,137 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:04:43,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 01:04:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:43,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:43,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:45,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:45,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:45,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381103619] [2022-07-20 01:04:45,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381103619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:45,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:45,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:04:45,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141501731] [2022-07-20 01:04:45,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:45,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:45,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:45,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:45,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:45,169 INFO L87 Difference]: Start difference. First operand 50806 states and 70394 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:46,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:46,526 INFO L93 Difference]: Finished difference Result 50808 states and 70395 transitions. [2022-07-20 01:04:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:46,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-07-20 01:04:46,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:46,728 INFO L225 Difference]: With dead ends: 50808 [2022-07-20 01:04:46,728 INFO L226 Difference]: Without dead ends: 50796 [2022-07-20 01:04:46,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:46,753 INFO L413 NwaCegarLoop]: 3563 mSDtfsCounter, 3522 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 3563 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 [2022-07-20 01:04:46,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:04:46,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50796 states. [2022-07-20 01:04:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50796 to 50796. [2022-07-20 01:04:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50796 states, 34177 states have (on average 1.289317377183486) internal successors, (44065), 34805 states have internal predecessors, (44065), 12863 states have call successors, (12863), 3776 states have call predecessors, (12863), 3755 states have return successors, (13426), 12754 states have call predecessors, (13426), 12860 states have call successors, (13426) [2022-07-20 01:04:48,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50796 states to 50796 states and 70354 transitions. [2022-07-20 01:04:48,705 INFO L78 Accepts]: Start accepts. Automaton has 50796 states and 70354 transitions. Word has length 44 [2022-07-20 01:04:48,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:48,705 INFO L495 AbstractCegarLoop]: Abstraction has 50796 states and 70354 transitions. [2022-07-20 01:04:48,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-20 01:04:48,705 INFO L276 IsEmpty]: Start isEmpty. Operand 50796 states and 70354 transitions. [2022-07-20 01:04:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-20 01:04:48,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:48,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:48,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-20 01:04:48,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:48,909 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:48,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:48,909 INFO L85 PathProgramCache]: Analyzing trace with hash -879177529, now seen corresponding path program 1 times [2022-07-20 01:04:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:48,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457143024] [2022-07-20 01:04:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:48,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:48,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:48,912 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:04:48,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 01:04:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:49,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:49,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:49,902 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 01:04:49,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:49,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:49,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457143024] [2022-07-20 01:04:49,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457143024] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:49,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:49,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:04:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665079702] [2022-07-20 01:04:49,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:49,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:49,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:49,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:49,904 INFO L87 Difference]: Start difference. First operand 50796 states and 70354 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 01:04:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:52,164 INFO L93 Difference]: Finished difference Result 105418 states and 147113 transitions. [2022-07-20 01:04:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:04:52,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2022-07-20 01:04:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:52,384 INFO L225 Difference]: With dead ends: 105418 [2022-07-20 01:04:52,384 INFO L226 Difference]: Without dead ends: 54630 [2022-07-20 01:04:52,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:52,551 INFO L413 NwaCegarLoop]: 3947 mSDtfsCounter, 325 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 7535 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:52,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 7535 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:52,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54630 states. [2022-07-20 01:04:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54630 to 50806. [2022-07-20 01:04:54,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50806 states, 34187 states have (on average 1.2892327492906661) internal successors, (44075), 34815 states have internal predecessors, (44075), 12863 states have call successors, (12863), 3776 states have call predecessors, (12863), 3755 states have return successors, (13426), 12754 states have call predecessors, (13426), 12860 states have call successors, (13426) [2022-07-20 01:04:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50806 states to 50806 states and 70364 transitions. [2022-07-20 01:04:54,869 INFO L78 Accepts]: Start accepts. Automaton has 50806 states and 70364 transitions. Word has length 90 [2022-07-20 01:04:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:54,870 INFO L495 AbstractCegarLoop]: Abstraction has 50806 states and 70364 transitions. [2022-07-20 01:04:54,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 01:04:54,870 INFO L276 IsEmpty]: Start isEmpty. Operand 50806 states and 70364 transitions. [2022-07-20 01:04:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-20 01:04:54,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:54,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:54,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-20 01:04:55,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:04:55,075 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:55,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:55,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1439877307, now seen corresponding path program 1 times [2022-07-20 01:04:55,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:55,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508349911] [2022-07-20 01:04:55,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:55,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:55,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:55,078 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:04:55,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-20 01:04:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:56,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:04:56,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-20 01:04:56,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:56,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:56,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508349911] [2022-07-20 01:04:56,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508349911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:56,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:56,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:04:56,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962366337] [2022-07-20 01:04:56,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:56,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:04:56,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:56,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:04:56,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:04:56,119 INFO L87 Difference]: Start difference. First operand 50806 states and 70364 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)