./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--usb--misc--ftdi-elan.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--usb--misc--ftdi-elan.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:03:28,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:03:28,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:03:28,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:03:28,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:03:28,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:03:28,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:03:28,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:03:28,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:03:28,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:03:28,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:03:28,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:03:28,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:03:28,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:03:28,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:03:28,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:03:28,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:03:28,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:03:28,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:03:28,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:03:28,644 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:03:28,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:03:28,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:03:28,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:03:28,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:03:28,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:03:28,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:03:28,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:03:28,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:03:28,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:03:28,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:03:28,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:03:28,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:03:28,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:03:28,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:03:28,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:03:28,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:03:28,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:03:28,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:03:28,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:03:28,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:03:28,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:03:28,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:03:28,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:03:28,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:03:28,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:03:28,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:03:28,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:03:28,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:03:28,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:03:28,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:03:28,684 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:03:28,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:03:28,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:03:28,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:03:28,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:03:28,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:03:28,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:03:28,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:03:28,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:03:28,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:03:28,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:03:28,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:03:28,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:03:28,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:03:28,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:03:28,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:03:28,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:03:28,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:03:28,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:03:28,688 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:03:28,688 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:03:28,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:03:28,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-20 01:03:28,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:03:28,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:03:28,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:03:28,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:03:28,888 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:03:28,889 INFO L432 ainManager$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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-20 01:03:28,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3ab174f/214d10431f0b40208c5344f670e92fa0/FLAGc27d47914 [2022-07-20 01:03:29,522 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:03:29,523 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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-20 01:03:29,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3ab174f/214d10431f0b40208c5344f670e92fa0/FLAGc27d47914 [2022-07-20 01:03:29,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3ab174f/214d10431f0b40208c5344f670e92fa0 [2022-07-20 01:03:29,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:03:29,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:03:29,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:03:29,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:03:29,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:03:29,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:29" (1/1) ... [2022-07-20 01:03:29,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43458d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:29, skipping insertion in model container [2022-07-20 01:03:29,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:29" (1/1) ... [2022-07-20 01:03:29,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:03:29,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:03:31,110 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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-20 01:03:31,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:03:31,249 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:03:31,397 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: hc_fminterval = hc_fminterval & 16383U [7308] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 01:03:31,404 INFO L158 Benchmark]: Toolchain (without parser) took 1686.52ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 54.7MB in the beginning and 63.9MB in the end (delta: -9.2MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-07-20 01:03:31,405 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 01:03:31,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1684.09ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 54.5MB in the beginning and 63.9MB in the end (delta: -9.4MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-07-20 01:03:31,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1684.09ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 54.5MB in the beginning and 63.9MB in the end (delta: -9.4MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: hc_fminterval = hc_fminterval & 16383U [7308] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: hc_fminterval = hc_fminterval & 16383U [7308]: 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--usb--misc--ftdi-elan.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:03:32,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:03:32,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:03:32,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:03:32,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:03:32,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:03:32,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:03:32,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:03:32,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:03:32,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:03:32,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:03:32,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:03:32,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:03:32,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:03:32,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:03:32,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:03:32,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:03:32,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:03:32,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:03:32,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:03:32,907 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:03:32,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:03:32,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:03:32,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:03:32,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:03:32,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:03:32,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:03:32,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:03:32,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:03:32,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:03:32,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:03:32,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:03:32,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:03:32,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:03:32,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:03:32,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:03:32,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:03:32,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:03:32,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:03:32,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:03:32,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:03:32,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:03:32,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 01:03:32,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:03:32,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:03:32,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:03:32,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:03:32,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:03:32,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:03:32,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:03:32,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:03:32,950 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:03:32,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:03:32,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:03:32,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:03:32,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:03:32,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:03:32,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 01:03:32,952 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 01:03:32,952 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 01:03:32,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:03:32,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:03:32,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:03:32,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:03:32,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:03:32,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:03:32,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:03:32,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:03:32,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:03:32,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:03:32,953 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 01:03:32,953 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 01:03:32,954 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:03:32,954 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:03:32,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:03:32,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 01:03:32,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-20 01:03:33,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:03:33,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:03:33,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:03:33,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:03:33,196 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:03:33,196 INFO L432 ainManager$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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-20 01:03:33,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af12e61d7/a311b63e00ac4886896899546196efbe/FLAG141a690b8 [2022-07-20 01:03:33,830 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:03:33,831 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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-20 01:03:33,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af12e61d7/a311b63e00ac4886896899546196efbe/FLAG141a690b8 [2022-07-20 01:03:33,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af12e61d7/a311b63e00ac4886896899546196efbe [2022-07-20 01:03:33,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:03:33,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:03:33,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:03:33,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:03:34,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:03:34,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:33" (1/1) ... [2022-07-20 01:03:34,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b1f579d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:34, skipping insertion in model container [2022-07-20 01:03:34,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:33" (1/1) ... [2022-07-20 01:03:34,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:03:34,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:03:35,250 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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-20 01:03:35,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:03:35,414 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 01:03:35,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:03:35,686 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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-20 01:03:35,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:03:35,714 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:03:35,961 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--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2022-07-20 01:03:35,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:03:36,071 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:03:36,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36 WrapperNode [2022-07-20 01:03:36,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:03:36,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:03:36,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:03:36,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:03:36,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,302 INFO L137 Inliner]: procedures = 394, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6570 [2022-07-20 01:03:36,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:03:36,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:03:36,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:03:36,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:03:36,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:03:36,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:03:36,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:03:36,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:03:36,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (1/1) ... [2022-07-20 01:03:36,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:03:36,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:03:36,583 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 01:03:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-20 01:03:36,626 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 01:03:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-20 01:03:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:03:36,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:03:36,651 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2022-07-20 01:03:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2022-07-20 01:03:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:03:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:03:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-20 01:03:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-20 01:03:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-20 01:03:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-20 01:03:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-20 01:03:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-20 01:03:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2022-07-20 01:03:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2022-07-20 01:03:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-20 01:03:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-20 01:03:36,653 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-20 01:03:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2022-07-20 01:03:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2022-07-20 01:03:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-20 01:03:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-20 01:03:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:03:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 01:03:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 01:03:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 01:03:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-20 01:03:36,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-20 01:03:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 01:03:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 01:03:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2022-07-20 01:03:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2022-07-20 01:03:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2022-07-20 01:03:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2022-07-20 01:03:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2022-07-20 01:03:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2022-07-20 01:03:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2022-07-20 01:03:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2022-07-20 01:03:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-20 01:03:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-20 01:03:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2022-07-20 01:03:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2022-07-20 01:03:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2022-07-20 01:03:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2022-07-20 01:03:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-20 01:03:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-20 01:03:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2022-07-20 01:03:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2022-07-20 01:03:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2022-07-20 01:03:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2022-07-20 01:03:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2022-07-20 01:03:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2022-07-20 01:03:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:03:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:03:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2022-07-20 01:03:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2022-07-20 01:03:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2022-07-20 01:03:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2022-07-20 01:03:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:03:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2022-07-20 01:03:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2022-07-20 01:03:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-20 01:03:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-20 01:03:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-20 01:03:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-20 01:03:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:03:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-20 01:03:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-20 01:03:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:03:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2022-07-20 01:03:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2022-07-20 01:03:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 01:03:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 01:03:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2022-07-20 01:03:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2022-07-20 01:03:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-20 01:03:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-20 01:03:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2022-07-20 01:03:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2022-07-20 01:03:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 01:03:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 01:03:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 01:03:36,675 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 01:03:36,675 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-20 01:03:36,675 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-20 01:03:36,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:03:36,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:03:36,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 01:03:36,676 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-20 01:03:36,676 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-20 01:03:36,677 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 01:03:36,677 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 01:03:36,677 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-20 01:03:36,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-20 01:03:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 01:03:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 01:03:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2022-07-20 01:03:36,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2022-07-20 01:03:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 01:03:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:03:36,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:03:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-20 01:03:36,679 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-20 01:03:36,679 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2022-07-20 01:03:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2022-07-20 01:03:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-20 01:03:36,687 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-20 01:03:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-20 01:03:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-20 01:03:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 01:03:36,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 01:03:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-20 01:03:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-20 01:03:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:03:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:03:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-20 01:03:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-20 01:03:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:03:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:03:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 01:03:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 01:03:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2022-07-20 01:03:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2022-07-20 01:03:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2022-07-20 01:03:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2022-07-20 01:03:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:03:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 01:03:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 01:03:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-07-20 01:03:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-07-20 01:03:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:03:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-20 01:03:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-20 01:03:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 01:03:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 01:03:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 01:03:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 01:03:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-07-20 01:03:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-07-20 01:03:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:03:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2022-07-20 01:03:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2022-07-20 01:03:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-20 01:03:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-20 01:03:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2022-07-20 01:03:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2022-07-20 01:03:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-20 01:03:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-20 01:03:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 01:03:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 01:03:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-20 01:03:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-20 01:03:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-20 01:03:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-20 01:03:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2022-07-20 01:03:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2022-07-20 01:03:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2022-07-20 01:03:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2022-07-20 01:03:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2022-07-20 01:03:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2022-07-20 01:03:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-20 01:03:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-20 01:03:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-20 01:03:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-20 01:03:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2022-07-20 01:03:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2022-07-20 01:03:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2022-07-20 01:03:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2022-07-20 01:03:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-20 01:03:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-20 01:03:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2022-07-20 01:03:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2022-07-20 01:03:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-20 01:03:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-20 01:03:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 01:03:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 01:03:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 01:03:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:03:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:03:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2022-07-20 01:03:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2022-07-20 01:03:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 01:03:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 01:03:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-20 01:03:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-20 01:03:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-20 01:03:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-20 01:03:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-20 01:03:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-20 01:03:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-20 01:03:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-20 01:03:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2022-07-20 01:03:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2022-07-20 01:03:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-20 01:03:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-20 01:03:37,264 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:03:37,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:03:59,086 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:04:49,801 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:04:49,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:04:49,814 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:04:49,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:04:49 BoogieIcfgContainer [2022-07-20 01:04:49,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:04:49,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:04:49,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:04:49,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:04:49,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:03:33" (1/3) ... [2022-07-20 01:04:49,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b87e12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:04:49, skipping insertion in model container [2022-07-20 01:04:49,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:36" (2/3) ... [2022-07-20 01:04:49,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b87e12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:04:49, skipping insertion in model container [2022-07-20 01:04:49,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:04:49" (3/3) ... [2022-07-20 01:04:49,824 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-20 01:04:49,834 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:04:49,835 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:04:49,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:04:49,914 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@70474f01, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3e44799c [2022-07-20 01:04:49,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:04:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2022-07-20 01:04:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-20 01:04:49,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:49,946 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:49,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:49,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:49,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1015355331, now seen corresponding path program 1 times [2022-07-20 01:04:49,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:49,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699061233] [2022-07-20 01:04:49,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:49,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:49,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:49,966 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 01:04:49,969 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 01:04:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:51,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-20 01:04:51,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-20 01:04:51,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:51,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:51,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699061233] [2022-07-20 01:04:51,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699061233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:51,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:51,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:04:51,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090372923] [2022-07-20 01:04:51,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:51,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 01:04:51,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:51,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 01:04:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 01:04:51,410 INFO L87 Difference]: Start difference. First operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 01:04:51,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:51,551 INFO L93 Difference]: Finished difference Result 3343 states and 5205 transitions. [2022-07-20 01:04:51,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 01:04:51,553 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-07-20 01:04:51,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:51,577 INFO L225 Difference]: With dead ends: 3343 [2022-07-20 01:04:51,578 INFO L226 Difference]: Without dead ends: 1660 [2022-07-20 01:04:51,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 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 01:04:51,602 INFO L413 NwaCegarLoop]: 2479 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, 2479 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 01:04:51,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:04:51,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-07-20 01:04:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1660. [2022-07-20 01:04:51,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1121 states have (on average 1.392506690454951) internal successors, (1561), 1165 states have internal predecessors, (1561), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-20 01:04:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2460 transitions. [2022-07-20 01:04:51,741 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2460 transitions. Word has length 135 [2022-07-20 01:04:51,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:51,741 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2460 transitions. [2022-07-20 01:04:51,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 01:04:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2460 transitions. [2022-07-20 01:04:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-20 01:04:51,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:51,749 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:51,789 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 01:04:51,956 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 01:04:51,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:51,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1914785415, now seen corresponding path program 1 times [2022-07-20 01:04:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:51,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530162167] [2022-07-20 01:04:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:51,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:51,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:51,960 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 01:04:51,961 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 01:04:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:53,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 01:04:53,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-20 01:04:53,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:53,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:53,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530162167] [2022-07-20 01:04:53,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530162167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:53,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:53,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:04:53,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347602343] [2022-07-20 01:04:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:53,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 01:04:53,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:53,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 01:04:53,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 01:04:53,648 INFO L87 Difference]: Start difference. First operand 1660 states and 2460 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 01:04:53,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:53,999 INFO L93 Difference]: Finished difference Result 3310 states and 4908 transitions. [2022-07-20 01:04:54,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 01:04:54,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2022-07-20 01:04:54,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:54,012 INFO L225 Difference]: With dead ends: 3310 [2022-07-20 01:04:54,013 INFO L226 Difference]: Without dead ends: 1661 [2022-07-20 01:04:54,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:04:54,024 INFO L413 NwaCegarLoop]: 2458 mSDtfsCounter, 3 mSDsluCounter, 4907 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7365 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:54,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7365 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:04:54,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-07-20 01:04:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-07-20 01:04:54,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1122 states have (on average 1.392156862745098) internal successors, (1562), 1166 states have internal predecessors, (1562), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-20 01:04:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2461 transitions. [2022-07-20 01:04:54,076 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2461 transitions. Word has length 135 [2022-07-20 01:04:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:54,078 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2461 transitions. [2022-07-20 01:04:54,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 01:04:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2461 transitions. [2022-07-20 01:04:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-20 01:04:54,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:54,081 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:54,121 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 01:04:54,303 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 01:04:54,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:54,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash 914592341, now seen corresponding path program 1 times [2022-07-20 01:04:54,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:54,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110788463] [2022-07-20 01:04:54,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:04:54,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:54,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:54,310 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 01:04:54,312 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 01:04:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:04:55,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 01:04:55,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-20 01:04:56,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:04:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-07-20 01:04:56,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:56,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110788463] [2022-07-20 01:04:56,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110788463] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:04:56,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:04:56,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-20 01:04:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837792820] [2022-07-20 01:04:56,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:04:56,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:04:56,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:56,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:04:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:04:56,784 INFO L87 Difference]: Start difference. First operand 1661 states and 2461 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 01:04:57,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:04:57,865 INFO L93 Difference]: Finished difference Result 3321 states and 4925 transitions. [2022-07-20 01:04:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 01:04:57,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2022-07-20 01:04:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:04:57,877 INFO L225 Difference]: With dead ends: 3321 [2022-07-20 01:04:57,877 INFO L226 Difference]: Without dead ends: 1671 [2022-07-20 01:04:57,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-20 01:04:57,889 INFO L413 NwaCegarLoop]: 2457 mSDtfsCounter, 12 mSDsluCounter, 12264 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14721 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 01:04:57,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 14721 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 01:04:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-07-20 01:04:57,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2022-07-20 01:04:57,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1131 states have (on average 1.391688770999116) internal successors, (1574), 1175 states have internal predecessors, (1574), 454 states have call successors, (454), 86 states have call predecessors, (454), 85 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2022-07-20 01:04:57,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2473 transitions. [2022-07-20 01:04:57,940 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2473 transitions. Word has length 139 [2022-07-20 01:04:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:04:57,941 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2473 transitions. [2022-07-20 01:04:57,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 01:04:57,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2473 transitions. [2022-07-20 01:04:57,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-20 01:04:57,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:04:57,944 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:04:57,983 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 01:04:58,155 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 01:04:58,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:04:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:04:58,156 INFO L85 PathProgramCache]: Analyzing trace with hash -58419911, now seen corresponding path program 2 times [2022-07-20 01:04:58,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:04:58,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129820543] [2022-07-20 01:04:58,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:04:58,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:04:58,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:04:58,160 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 01:04:58,161 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 01:04:59,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 01:04:59,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:04:59,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:04:59,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:04:59,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-07-20 01:04:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-07-20 01:04:59,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:04:59,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:04:59,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129820543] [2022-07-20 01:04:59,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129820543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:04:59,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:04:59,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 01:04:59,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146802804] [2022-07-20 01:04:59,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:04:59,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:04:59,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:04:59,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:04:59,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:04:59,532 INFO L87 Difference]: Start difference. First operand 1671 states and 2473 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:05:01,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:03,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:09,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:11,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:13,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:15,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:17,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:19,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:21,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:23,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:25,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:26,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:29,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:31,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:33,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:35,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:37,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:39,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:40,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:42,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:44,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:47,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:49,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:51,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:53,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:55,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:57,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:05:59,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:01,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:04,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:06,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:08,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:10,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:16,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:18,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:20,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:22,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:24,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:26,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:29,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:30,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:32,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:34,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:36,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:38,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:41,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:42,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:46,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:49,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:51,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:52,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:56,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:06:58,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:07:00,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:07:03,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:07:05,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:07:06,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:06,082 INFO L93 Difference]: Finished difference Result 3278 states and 4925 transitions. [2022-07-20 01:07:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 01:07:06,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 149 [2022-07-20 01:07:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:06,092 INFO L225 Difference]: With dead ends: 3278 [2022-07-20 01:07:06,092 INFO L226 Difference]: Without dead ends: 1647 [2022-07-20 01:07:06,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:07:06,104 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 24 mSDsluCounter, 6580 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8957 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:06,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8957 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 39 Unknown, 0 Unchecked, 126.3s Time] [2022-07-20 01:07:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-07-20 01:07:06,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1628. [2022-07-20 01:07:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1103 states have (on average 1.388032638259293) internal successors, (1531), 1147 states have internal predecessors, (1531), 439 states have call successors, (439), 86 states have call predecessors, (439), 85 states have return successors, (430), 421 states have call predecessors, (430), 430 states have call successors, (430) [2022-07-20 01:07:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2400 transitions. [2022-07-20 01:07:06,187 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2400 transitions. Word has length 149 [2022-07-20 01:07:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:06,189 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2400 transitions. [2022-07-20 01:07:06,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2400 transitions. [2022-07-20 01:07:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-20 01:07:06,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:06,191 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:06,222 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 01:07:06,392 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 01:07:06,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:06,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1109194293, now seen corresponding path program 1 times [2022-07-20 01:07:06,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:06,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949761228] [2022-07-20 01:07:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:06,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:06,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:06,396 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 01:07:06,396 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 01:07:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:07,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:07:07,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 77 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-20 01:07:08,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:07:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-20 01:07:10,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:10,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949761228] [2022-07-20 01:07:10,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949761228] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:07:10,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:07:10,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-20 01:07:10,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761089707] [2022-07-20 01:07:10,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:07:10,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-20 01:07:10,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:10,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-20 01:07:10,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-20 01:07:10,596 INFO L87 Difference]: Start difference. First operand 1628 states and 2400 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 01:07:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:13,093 INFO L93 Difference]: Finished difference Result 3260 states and 4809 transitions. [2022-07-20 01:07:13,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 01:07:13,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 151 [2022-07-20 01:07:13,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:13,103 INFO L225 Difference]: With dead ends: 3260 [2022-07-20 01:07:13,103 INFO L226 Difference]: Without dead ends: 1640 [2022-07-20 01:07:13,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:07:13,114 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 52 mSDsluCounter, 11921 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 14309 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:13,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 14309 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-20 01:07:13,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-07-20 01:07:13,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1634. [2022-07-20 01:07:13,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1109 states have (on average 1.3868349864743013) internal successors, (1538), 1153 states have internal predecessors, (1538), 439 states have call successors, (439), 86 states have call predecessors, (439), 85 states have return successors, (430), 421 states have call predecessors, (430), 430 states have call successors, (430) [2022-07-20 01:07:13,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2407 transitions. [2022-07-20 01:07:13,186 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2407 transitions. Word has length 151 [2022-07-20 01:07:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:13,187 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 2407 transitions. [2022-07-20 01:07:13,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 01:07:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2407 transitions. [2022-07-20 01:07:13,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-20 01:07:13,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:13,190 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:13,225 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 01:07:13,391 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 01:07:13,392 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:13,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:13,392 INFO L85 PathProgramCache]: Analyzing trace with hash 806146123, now seen corresponding path program 2 times [2022-07-20 01:07:13,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:13,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346476801] [2022-07-20 01:07:13,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:07:13,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:13,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:13,395 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 01:07:13,395 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 01:07:14,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 01:07:14,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:07:14,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:14,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:14,736 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-07-20 01:07:14,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:14,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:14,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346476801] [2022-07-20 01:07:14,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346476801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:14,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:14,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:07:14,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997288615] [2022-07-20 01:07:14,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:14,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:14,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:14,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:14,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:14,738 INFO L87 Difference]: Start difference. First operand 1634 states and 2407 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:15,057 INFO L93 Difference]: Finished difference Result 4723 states and 7275 transitions. [2022-07-20 01:07:15,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:15,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 163 [2022-07-20 01:07:15,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:15,075 INFO L225 Difference]: With dead ends: 4723 [2022-07-20 01:07:15,075 INFO L226 Difference]: Without dead ends: 3135 [2022-07-20 01:07:15,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 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 01:07:15,088 INFO L413 NwaCegarLoop]: 2804 mSDtfsCounter, 2235 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:15,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 5293 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:07:15,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2022-07-20 01:07:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 3116. [2022-07-20 01:07:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2121 states have (on average 1.3927392739273927) internal successors, (2954), 2207 states have internal predecessors, (2954), 835 states have call successors, (835), 168 states have call predecessors, (835), 159 states have return successors, (956), 788 states have call predecessors, (956), 826 states have call successors, (956) [2022-07-20 01:07:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4745 transitions. [2022-07-20 01:07:15,187 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4745 transitions. Word has length 163 [2022-07-20 01:07:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:15,187 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4745 transitions. [2022-07-20 01:07:15,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4745 transitions. [2022-07-20 01:07:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-20 01:07:15,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:15,190 INFO L195 NwaCegarLoop]: trace histogram [26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:15,219 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 01:07:15,401 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 01:07:15,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:15,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:15,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1296385389, now seen corresponding path program 1 times [2022-07-20 01:07:15,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:15,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600417956] [2022-07-20 01:07:15,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:15,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:15,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:15,404 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 01:07:15,405 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 01:07:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:17,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:07:17,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 262 proven. 3 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-07-20 01:07:17,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:07:18,864 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-07-20 01:07:18,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:18,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600417956] [2022-07-20 01:07:18,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600417956] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:07:18,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:07:18,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-07-20 01:07:18,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993378792] [2022-07-20 01:07:18,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:07:18,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 01:07:18,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:18,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 01:07:18,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:07:18,867 INFO L87 Difference]: Start difference. First operand 3116 states and 4745 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 01:07:20,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:20,058 INFO L93 Difference]: Finished difference Result 6216 states and 9465 transitions. [2022-07-20 01:07:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 01:07:20,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 164 [2022-07-20 01:07:20,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:20,081 INFO L225 Difference]: With dead ends: 6216 [2022-07-20 01:07:20,082 INFO L226 Difference]: Without dead ends: 3116 [2022-07-20 01:07:20,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-20 01:07:20,098 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 20 mSDsluCounter, 11890 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14271 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:20,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14271 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 01:07:20,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-20 01:07:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-07-20 01:07:20,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2121 states have (on average 1.3908533710513908) internal successors, (2950), 2207 states have internal predecessors, (2950), 835 states have call successors, (835), 168 states have call predecessors, (835), 159 states have return successors, (956), 788 states have call predecessors, (956), 826 states have call successors, (956) [2022-07-20 01:07:20,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4741 transitions. [2022-07-20 01:07:20,290 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4741 transitions. Word has length 164 [2022-07-20 01:07:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:20,291 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4741 transitions. [2022-07-20 01:07:20,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 01:07:20,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4741 transitions. [2022-07-20 01:07:20,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-20 01:07:20,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:20,294 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:20,339 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 01:07:20,519 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 01:07:20,519 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:20,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1126223917, now seen corresponding path program 2 times [2022-07-20 01:07:20,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:20,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633796873] [2022-07-20 01:07:20,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:07:20,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:20,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:20,524 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 01:07:20,525 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 01:07:21,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 01:07:21,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:07:21,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:21,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 01:07:21,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:21,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:21,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633796873] [2022-07-20 01:07:21,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633796873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:21,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:21,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:07:21,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884916138] [2022-07-20 01:07:21,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:21,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:21,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:21,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:21,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:21,923 INFO L87 Difference]: Start difference. First operand 3116 states and 4741 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:22,272 INFO L93 Difference]: Finished difference Result 7764 states and 12276 transitions. [2022-07-20 01:07:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:22,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 166 [2022-07-20 01:07:22,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:22,297 INFO L225 Difference]: With dead ends: 7764 [2022-07-20 01:07:22,297 INFO L226 Difference]: Without dead ends: 4694 [2022-07-20 01:07:22,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 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 01:07:22,313 INFO L413 NwaCegarLoop]: 2805 mSDtfsCounter, 2361 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:22,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 5298 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:07:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-07-20 01:07:22,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4675. [2022-07-20 01:07:22,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4675 states, 3180 states have (on average 1.389937106918239) internal successors, (4420), 3303 states have internal predecessors, (4420), 1252 states have call successors, (1252), 251 states have call predecessors, (1252), 242 states have return successors, (1597), 1195 states have call predecessors, (1597), 1243 states have call successors, (1597) [2022-07-20 01:07:22,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 7269 transitions. [2022-07-20 01:07:22,457 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 7269 transitions. Word has length 166 [2022-07-20 01:07:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:22,458 INFO L495 AbstractCegarLoop]: Abstraction has 4675 states and 7269 transitions. [2022-07-20 01:07:22,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 7269 transitions. [2022-07-20 01:07:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-20 01:07:22,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:22,461 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:22,490 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 01:07:22,675 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 01:07:22,676 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:22,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1579180554, now seen corresponding path program 1 times [2022-07-20 01:07:22,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:22,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185453260] [2022-07-20 01:07:22,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:22,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:22,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:22,679 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 01:07:22,679 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 01:07:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:25,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:25,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 01:07:25,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:25,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:25,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185453260] [2022-07-20 01:07:25,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185453260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:25,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:25,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:07:25,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195379774] [2022-07-20 01:07:25,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:25,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:25,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:25,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:25,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:25,758 INFO L87 Difference]: Start difference. First operand 4675 states and 7269 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:07:26,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:26,137 INFO L93 Difference]: Finished difference Result 13431 states and 20925 transitions. [2022-07-20 01:07:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:26,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 166 [2022-07-20 01:07:26,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:26,184 INFO L225 Difference]: With dead ends: 13431 [2022-07-20 01:07:26,184 INFO L226 Difference]: Without dead ends: 8802 [2022-07-20 01:07:26,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 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 01:07:26,207 INFO L413 NwaCegarLoop]: 2856 mSDtfsCounter, 2171 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 5154 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:26,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 5154 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:07:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8802 states. [2022-07-20 01:07:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8802 to 8779. [2022-07-20 01:07:26,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8779 states, 5989 states have (on average 1.3983970612790115) internal successors, (8375), 6219 states have internal predecessors, (8375), 2325 states have call successors, (2325), 481 states have call predecessors, (2325), 464 states have return successors, (2981), 2223 states have call predecessors, (2981), 2316 states have call successors, (2981) [2022-07-20 01:07:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8779 states to 8779 states and 13681 transitions. [2022-07-20 01:07:26,528 INFO L78 Accepts]: Start accepts. Automaton has 8779 states and 13681 transitions. Word has length 166 [2022-07-20 01:07:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:26,529 INFO L495 AbstractCegarLoop]: Abstraction has 8779 states and 13681 transitions. [2022-07-20 01:07:26,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:07:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 8779 states and 13681 transitions. [2022-07-20 01:07:26,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-20 01:07:26,531 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:26,531 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:26,573 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 01:07:26,738 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 01:07:26,738 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1337346782, now seen corresponding path program 1 times [2022-07-20 01:07:26,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:26,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591883205] [2022-07-20 01:07:26,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:26,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:26,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:26,743 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 01:07:26,745 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 01:07:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:29,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:29,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 01:07:29,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:29,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:29,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591883205] [2022-07-20 01:07:29,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591883205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:29,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:29,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:07:29,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070466553] [2022-07-20 01:07:29,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:29,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:29,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:29,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:29,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:29,875 INFO L87 Difference]: Start difference. First operand 8779 states and 13681 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:30,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:30,336 INFO L93 Difference]: Finished difference Result 20473 states and 33126 transitions. [2022-07-20 01:07:30,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:30,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 167 [2022-07-20 01:07:30,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:30,386 INFO L225 Difference]: With dead ends: 20473 [2022-07-20 01:07:30,386 INFO L226 Difference]: Without dead ends: 11740 [2022-07-20 01:07:30,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 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 01:07:30,433 INFO L413 NwaCegarLoop]: 2802 mSDtfsCounter, 2362 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 5295 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:30,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 5295 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 01:07:30,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2022-07-20 01:07:30,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11721. [2022-07-20 01:07:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11721 states, 7995 states have (on average 1.396998123827392) internal successors, (11169), 8296 states have internal predecessors, (11169), 3101 states have call successors, (3101), 641 states have call predecessors, (3101), 624 states have return successors, (4296), 2980 states have call predecessors, (4296), 3092 states have call successors, (4296) [2022-07-20 01:07:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11721 states to 11721 states and 18566 transitions. [2022-07-20 01:07:30,906 INFO L78 Accepts]: Start accepts. Automaton has 11721 states and 18566 transitions. Word has length 167 [2022-07-20 01:07:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:30,907 INFO L495 AbstractCegarLoop]: Abstraction has 11721 states and 18566 transitions. [2022-07-20 01:07:30,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 11721 states and 18566 transitions. [2022-07-20 01:07:30,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-20 01:07:30,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:30,909 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:30,955 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 01:07:31,135 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 01:07:31,135 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:31,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:31,136 INFO L85 PathProgramCache]: Analyzing trace with hash -69869020, now seen corresponding path program 1 times [2022-07-20 01:07:31,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:31,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147933444] [2022-07-20 01:07:31,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:31,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:31,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:31,138 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 01:07:31,139 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 01:07:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:34,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:34,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 01:07:34,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:34,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:34,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147933444] [2022-07-20 01:07:34,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147933444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:34,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:34,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:07:34,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487919354] [2022-07-20 01:07:34,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:34,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:34,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:34,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:34,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:34,217 INFO L87 Difference]: Start difference. First operand 11721 states and 18566 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:34,788 INFO L93 Difference]: Finished difference Result 26351 states and 43316 transitions. [2022-07-20 01:07:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:34,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 168 [2022-07-20 01:07:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:34,857 INFO L225 Difference]: With dead ends: 26351 [2022-07-20 01:07:34,857 INFO L226 Difference]: Without dead ends: 14676 [2022-07-20 01:07:34,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 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 01:07:34,925 INFO L413 NwaCegarLoop]: 2800 mSDtfsCounter, 2363 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:34,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 5293 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:07:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-07-20 01:07:35,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 14657. [2022-07-20 01:07:35,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14657 states, 9999 states have (on average 1.395839583958396) internal successors, (13957), 10371 states have internal predecessors, (13957), 3873 states have call successors, (3873), 801 states have call predecessors, (3873), 784 states have return successors, (5587), 3733 states have call predecessors, (5587), 3864 states have call successors, (5587) [2022-07-20 01:07:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14657 states to 14657 states and 23417 transitions. [2022-07-20 01:07:35,507 INFO L78 Accepts]: Start accepts. Automaton has 14657 states and 23417 transitions. Word has length 168 [2022-07-20 01:07:35,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:35,507 INFO L495 AbstractCegarLoop]: Abstraction has 14657 states and 23417 transitions. [2022-07-20 01:07:35,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-20 01:07:35,508 INFO L276 IsEmpty]: Start isEmpty. Operand 14657 states and 23417 transitions. [2022-07-20 01:07:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-20 01:07:35,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:35,510 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:35,555 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 01:07:35,727 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 01:07:35,728 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash -69115209, now seen corresponding path program 1 times [2022-07-20 01:07:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:35,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956905967] [2022-07-20 01:07:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:35,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:35,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:35,731 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 01:07:35,731 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 01:07:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:38,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:38,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 01:07:41,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:41,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:41,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956905967] [2022-07-20 01:07:41,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956905967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:41,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:41,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:07:41,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422559191] [2022-07-20 01:07:41,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:41,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:41,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:41,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:41,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:41,289 INFO L87 Difference]: Start difference. First operand 14657 states and 23417 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-20 01:07:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:41,535 INFO L93 Difference]: Finished difference Result 14721 states and 23459 transitions. [2022-07-20 01:07:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:41,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 168 [2022-07-20 01:07:41,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:41,594 INFO L225 Difference]: With dead ends: 14721 [2022-07-20 01:07:41,595 INFO L226 Difference]: Without dead ends: 14717 [2022-07-20 01:07:41,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 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 01:07:41,607 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 2286 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 01:07:41,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 2405 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:07:41,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14717 states. [2022-07-20 01:07:42,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14717 to 14715. [2022-07-20 01:07:42,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14715 states, 10039 states have (on average 1.3931666500647475) internal successors, (13986), 10409 states have internal predecessors, (13986), 3871 states have call successors, (3871), 821 states have call predecessors, (3871), 804 states have return successors, (5587), 3733 states have call predecessors, (5587), 3864 states have call successors, (5587) [2022-07-20 01:07:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14715 states to 14715 states and 23444 transitions. [2022-07-20 01:07:42,156 INFO L78 Accepts]: Start accepts. Automaton has 14715 states and 23444 transitions. Word has length 168 [2022-07-20 01:07:42,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:42,156 INFO L495 AbstractCegarLoop]: Abstraction has 14715 states and 23444 transitions. [2022-07-20 01:07:42,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-20 01:07:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 14715 states and 23444 transitions. [2022-07-20 01:07:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-20 01:07:42,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:42,158 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:42,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 01:07:42,372 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 01:07:42,372 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:42,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2143673234, now seen corresponding path program 1 times [2022-07-20 01:07:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:42,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223434477] [2022-07-20 01:07:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:42,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:42,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:42,375 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 01:07:42,377 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 01:07:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:45,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:45,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 01:07:48,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:48,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:48,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223434477] [2022-07-20 01:07:48,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223434477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:48,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:48,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:07:48,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90236807] [2022-07-20 01:07:48,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:48,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:48,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:48,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:48,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:48,090 INFO L87 Difference]: Start difference. First operand 14715 states and 23444 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-20 01:07:48,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:48,367 INFO L93 Difference]: Finished difference Result 14717 states and 23445 transitions. [2022-07-20 01:07:48,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:48,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 169 [2022-07-20 01:07:48,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:48,410 INFO L225 Difference]: With dead ends: 14717 [2022-07-20 01:07:48,410 INFO L226 Difference]: Without dead ends: 14714 [2022-07-20 01:07:48,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 01:07:48,416 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 2306 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 2380 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 01:07:48,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 2380 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:07:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14714 states. [2022-07-20 01:07:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14714 to 14714. [2022-07-20 01:07:48,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14714 states, 10039 states have (on average 1.3930670385496564) internal successors, (13985), 10408 states have internal predecessors, (13985), 3870 states have call successors, (3870), 821 states have call predecessors, (3870), 804 states have return successors, (5587), 3733 states have call predecessors, (5587), 3864 states have call successors, (5587) [2022-07-20 01:07:48,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14714 states to 14714 states and 23442 transitions. [2022-07-20 01:07:48,848 INFO L78 Accepts]: Start accepts. Automaton has 14714 states and 23442 transitions. Word has length 169 [2022-07-20 01:07:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:48,849 INFO L495 AbstractCegarLoop]: Abstraction has 14714 states and 23442 transitions. [2022-07-20 01:07:48,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-20 01:07:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 14714 states and 23442 transitions. [2022-07-20 01:07:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-20 01:07:48,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:48,851 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:48,893 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 01:07:49,065 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 01:07:49,066 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:49,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:49,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2030457702, now seen corresponding path program 1 times [2022-07-20 01:07:49,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:49,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811142042] [2022-07-20 01:07:49,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:49,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:49,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:49,069 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 01:07:49,072 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 01:07:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:07:52,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:07:52,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:07:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 01:07:54,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:07:54,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:07:54,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811142042] [2022-07-20 01:07:54,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811142042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:07:54,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:07:54,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 01:07:54,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890201098] [2022-07-20 01:07:54,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:07:54,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:07:54,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:07:54,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:07:54,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:07:54,260 INFO L87 Difference]: Start difference. First operand 14714 states and 23442 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-20 01:07:54,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:07:54,570 INFO L93 Difference]: Finished difference Result 14716 states and 23443 transitions. [2022-07-20 01:07:54,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:07:54,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 170 [2022-07-20 01:07:54,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:07:54,626 INFO L225 Difference]: With dead ends: 14716 [2022-07-20 01:07:54,626 INFO L226 Difference]: Without dead ends: 14713 [2022-07-20 01:07:54,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 01:07:54,638 INFO L413 NwaCegarLoop]: 2378 mSDtfsCounter, 2303 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2303 SdHoareTripleChecker+Valid, 2378 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 01:07:54,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2303 Valid, 2378 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:07:54,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14713 states. [2022-07-20 01:07:55,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14713 to 14713. [2022-07-20 01:07:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14713 states, 10039 states have (on average 1.392967427034565) internal successors, (13984), 10407 states have internal predecessors, (13984), 3869 states have call successors, (3869), 821 states have call predecessors, (3869), 804 states have return successors, (5587), 3733 states have call predecessors, (5587), 3864 states have call successors, (5587) [2022-07-20 01:07:55,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14713 states to 14713 states and 23440 transitions. [2022-07-20 01:07:55,270 INFO L78 Accepts]: Start accepts. Automaton has 14713 states and 23440 transitions. Word has length 170 [2022-07-20 01:07:55,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:07:55,271 INFO L495 AbstractCegarLoop]: Abstraction has 14713 states and 23440 transitions. [2022-07-20 01:07:55,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-20 01:07:55,271 INFO L276 IsEmpty]: Start isEmpty. Operand 14713 states and 23440 transitions. [2022-07-20 01:07:55,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-20 01:07:55,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:07:55,273 INFO L195 NwaCegarLoop]: trace histogram [28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:07:55,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-20 01:07:55,478 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 01:07:55,479 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:07:55,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:07:55,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1479228657, now seen corresponding path program 1 times [2022-07-20 01:07:55,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:07:55,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462551138] [2022-07-20 01:07:55,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:07:55,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:07:55,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:07:55,483 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 01:07:55,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process