./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-?-6c24879 [2022-07-12 14:01:09,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:01:09,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:01:09,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:01:09,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:01:09,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:01:09,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:01:09,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:01:09,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:01:09,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:01:09,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:01:09,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:01:09,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:01:09,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:01:09,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:01:09,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:01:09,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:01:09,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:01:09,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:01:09,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:01:09,512 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:01:09,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:01:09,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:01:09,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:01:09,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:01:09,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:01:09,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:01:09,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:01:09,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:01:09,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:01:09,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:01:09,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:01:09,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:01:09,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:01:09,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:01:09,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:01:09,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:01:09,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:01:09,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:01:09,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:01:09,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:01:09,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:01:09,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:01:09,564 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:01:09,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:01:09,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:01:09,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:01:09,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:01:09,566 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:01:09,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:01:09,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:01:09,567 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:01:09,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:01:09,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:01:09,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:01:09,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:01:09,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:01:09,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:01:09,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:01:09,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:01:09,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:01:09,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:01:09,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:01:09,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:01:09,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:01:09,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:01:09,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:01:09,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:01:09,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:01:09,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:01:09,570 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:01:09,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:01:09,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:01:09,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-12 14:01:09,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:01:09,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:01:09,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:01:09,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:01:09,824 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:01:09,825 INFO L432 ainManager$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 [2022-07-12 14:01:09,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/784948ad2/5c145de97bca4b148049b9a36aeac832/FLAGb05d46bb5 [2022-07-12 14:01:10,530 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:01:10,531 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 [2022-07-12 14:01:10,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/784948ad2/5c145de97bca4b148049b9a36aeac832/FLAGb05d46bb5 [2022-07-12 14:01:10,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/784948ad2/5c145de97bca4b148049b9a36aeac832 [2022-07-12 14:01:10,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:01:10,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:01:10,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:01:10,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:01:10,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:01:10,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:01:10" (1/1) ... [2022-07-12 14:01:10,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51098650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:10, skipping insertion in model container [2022-07-12 14:01:10,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:01:10" (1/1) ... [2022-07-12 14:01:10,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:01:10,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:01:12,099 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] [2022-07-12 14:01:12,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:01:12,304 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:01:12,498 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) [2022-07-12 14:01:12,506 INFO L158 Benchmark]: Toolchain (without parser) took 1804.60ms. Allocated memory was 111.1MB in the beginning and 213.9MB in the end (delta: 102.8MB). Free memory was 69.4MB in the beginning and 150.1MB in the end (delta: -80.7MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2022-07-12 14:01:12,506 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 111.1MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 14:01:12,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1801.21ms. Allocated memory was 111.1MB in the beginning and 213.9MB in the end (delta: 102.8MB). Free memory was 69.4MB in the beginning and 150.1MB in the end (delta: -80.7MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2022-07-12 14:01:12,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 111.1MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1801.21ms. Allocated memory was 111.1MB in the beginning and 213.9MB in the end (delta: 102.8MB). Free memory was 69.4MB in the beginning and 150.1MB in the end (delta: -80.7MB). Peak memory consumption was 60.9MB. 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-?-6c24879 [2022-07-12 14:01:14,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:01:14,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:01:14,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:01:14,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:01:14,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:01:14,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:01:14,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:01:14,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:01:14,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:01:14,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:01:14,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:01:14,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:01:14,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:01:14,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:01:14,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:01:14,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:01:14,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:01:14,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:01:14,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:01:14,146 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:01:14,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:01:14,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:01:14,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:01:14,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:01:14,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:01:14,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:01:14,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:01:14,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:01:14,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:01:14,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:01:14,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:01:14,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:01:14,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:01:14,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:01:14,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:01:14,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:01:14,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:01:14,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:01:14,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:01:14,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:01:14,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:01:14,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 14:01:14,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:01:14,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:01:14,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:01:14,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:01:14,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:01:14,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:01:14,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:01:14,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:01:14,194 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:01:14,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:01:14,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:01:14,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:01:14,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:01:14,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:01:14,196 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 14:01:14,196 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 14:01:14,196 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 14:01:14,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:01:14,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:01:14,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:01:14,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:01:14,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:01:14,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:01:14,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:01:14,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:01:14,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:01:14,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:01:14,198 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 14:01:14,198 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 14:01:14,198 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:01:14,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:01:14,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:01:14,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 14:01:14,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2022-07-12 14:01:14,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:01:14,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:01:14,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:01:14,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:01:14,449 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:01:14,450 INFO L432 ainManager$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 [2022-07-12 14:01:14,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfb69753/f571ab0f185042de8059d6dff6994af0/FLAG48c6c5ae1 [2022-07-12 14:01:15,121 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:01:15,122 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 [2022-07-12 14:01:15,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfb69753/f571ab0f185042de8059d6dff6994af0/FLAG48c6c5ae1 [2022-07-12 14:01:15,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfb69753/f571ab0f185042de8059d6dff6994af0 [2022-07-12 14:01:15,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:01:15,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:01:15,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:01:15,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:01:15,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:01:15,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:01:15" (1/1) ... [2022-07-12 14:01:15,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11979f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:15, skipping insertion in model container [2022-07-12 14:01:15,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:01:15" (1/1) ... [2022-07-12 14:01:15,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:01:15,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:01:17,007 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] [2022-07-12 14:01:17,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:01:17,304 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 14:01:17,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:01:17,653 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] [2022-07-12 14:01:17,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:01:17,697 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:01:18,027 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] [2022-07-12 14:01:18,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:01:18,141 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:01:18,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18 WrapperNode [2022-07-12 14:01:18,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:01:18,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:01:18,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:01:18,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:01:18,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,434 INFO L137 Inliner]: procedures = 394, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6570 [2022-07-12 14:01:18,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:01:18,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:01:18,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:01:18,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:01:18,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:01:18,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:01:18,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:01:18,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:01:18,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (1/1) ... [2022-07-12 14:01:18,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:01:18,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:01:18,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 14:01:18,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 14:01:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-12 14:01:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-12 14:01:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:01:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:01:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2022-07-12 14:01:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2022-07-12 14:01:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:01:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:01:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-12 14:01:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-12 14:01:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-12 14:01:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-12 14:01:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-12 14:01:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-12 14:01:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2022-07-12 14:01:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2022-07-12 14:01:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-12 14:01:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-07-12 14:01:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-07-12 14:01:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2022-07-12 14:01:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2022-07-12 14:01:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-12 14:01:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2022-07-12 14:01:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:01:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 14:01:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 14:01:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 14:01:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-12 14:01:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-12 14:01:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 14:01:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 14:01:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2022-07-12 14:01:18,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2022-07-12 14:01:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2022-07-12 14:01:18,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2022-07-12 14:01:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2022-07-12 14:01:18,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2022-07-12 14:01:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2022-07-12 14:01:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2022-07-12 14:01:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-12 14:01:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-12 14:01:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2022-07-12 14:01:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2022-07-12 14:01:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2022-07-12 14:01:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2022-07-12 14:01:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-12 14:01:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-12 14:01:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2022-07-12 14:01:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2022-07-12 14:01:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2022-07-12 14:01:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2022-07-12 14:01:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2022-07-12 14:01:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2022-07-12 14:01:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:01:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:01:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2022-07-12 14:01:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2022-07-12 14:01:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2022-07-12 14:01:18,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2022-07-12 14:01:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:01:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2022-07-12 14:01:18,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2022-07-12 14:01:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-12 14:01:18,815 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-12 14:01:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-12 14:01:18,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2022-07-12 14:01:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:01:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-12 14:01:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-12 14:01:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:01:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2022-07-12 14:01:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2022-07-12 14:01:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:01:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:01:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2022-07-12 14:01:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2022-07-12 14:01:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-12 14:01:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-12 14:01:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2022-07-12 14:01:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2022-07-12 14:01:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 14:01:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 14:01:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 14:01:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 14:01:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-12 14:01:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-12 14:01:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:01:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:01:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 14:01:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-12 14:01:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-12 14:01:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 14:01:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 14:01:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-12 14:01:18,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-12 14:01:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 14:01:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 14:01:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2022-07-12 14:01:18,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2022-07-12 14:01:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 14:01:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:01:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:01:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-12 14:01:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-12 14:01:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2022-07-12 14:01:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2022-07-12 14:01:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-12 14:01:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-12 14:01:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-12 14:01:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2022-07-12 14:01:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 14:01:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 14:01:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-12 14:01:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-12 14:01:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:01:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:01:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-12 14:01:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-12 14:01:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:01:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:01:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 14:01:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 14:01:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2022-07-12 14:01:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2022-07-12 14:01:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2022-07-12 14:01:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2022-07-12 14:01:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:01:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 14:01:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 14:01:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-07-12 14:01:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-07-12 14:01:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:01:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-12 14:01:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-12 14:01:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 14:01:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 14:01:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 14:01:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 14:01:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-07-12 14:01:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-07-12 14:01:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:01:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2022-07-12 14:01:18,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2022-07-12 14:01:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 14:01:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 14:01:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2022-07-12 14:01:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2022-07-12 14:01:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-12 14:01:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-12 14:01:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 14:01:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 14:01:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-12 14:01:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-12 14:01:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-12 14:01:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-12 14:01:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2022-07-12 14:01:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2022-07-12 14:01:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2022-07-12 14:01:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2022-07-12 14:01:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2022-07-12 14:01:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2022-07-12 14:01:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-12 14:01:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-12 14:01:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-12 14:01:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-12 14:01:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2022-07-12 14:01:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2022-07-12 14:01:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2022-07-12 14:01:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2022-07-12 14:01:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 14:01:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 14:01:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2022-07-12 14:01:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2022-07-12 14:01:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-12 14:01:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-12 14:01:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 14:01:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 14:01:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 14:01:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:01:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:01:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2022-07-12 14:01:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2022-07-12 14:01:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:01:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:01:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-12 14:01:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-12 14:01:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-12 14:01:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-12 14:01:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 14:01:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 14:01:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 14:01:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 14:01:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2022-07-12 14:01:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2022-07-12 14:01:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-12 14:01:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2022-07-12 14:01:19,414 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:01:19,416 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:01:41,972 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:02:32,208 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:02:32,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:02:32,230 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 14:02:32,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:02:32 BoogieIcfgContainer [2022-07-12 14:02:32,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:02:32,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:02:32,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:02:32,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:02:32,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:01:15" (1/3) ... [2022-07-12 14:02:32,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef996b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:02:32, skipping insertion in model container [2022-07-12 14:02:32,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:01:18" (2/3) ... [2022-07-12 14:02:32,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef996b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:02:32, skipping insertion in model container [2022-07-12 14:02:32,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:02:32" (3/3) ... [2022-07-12 14:02:32,240 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2022-07-12 14:02:32,250 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:02:32,250 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:02:32,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:02:32,324 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@65a3e184, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e75d89b [2022-07-12 14:02:32,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:02:32,334 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) [2022-07-12 14:02:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-12 14:02:32,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:02:32,348 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] [2022-07-12 14:02:32,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:02:32,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:02:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1015355331, now seen corresponding path program 1 times [2022-07-12 14:02:32,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:02:32,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278559976] [2022-07-12 14:02:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:02:32,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:02:32,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:02:32,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:02:32,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 14:02:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:02:33,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 14:02:33,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:02:33,788 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-12 14:02:33,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:02:33,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:02:33,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278559976] [2022-07-12 14:02:33,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278559976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:02:33,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:02:33,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:02:33,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848161904] [2022-07-12 14:02:33,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:02:33,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 14:02:33,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:02:33,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 14:02:33,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 14:02:33,832 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) [2022-07-12 14:02:34,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:02:34,010 INFO L93 Difference]: Finished difference Result 3343 states and 5205 transitions. [2022-07-12 14:02:34,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 14:02:34,012 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 [2022-07-12 14:02:34,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:02:34,069 INFO L225 Difference]: With dead ends: 3343 [2022-07-12 14:02:34,070 INFO L226 Difference]: Without dead ends: 1660 [2022-07-12 14:02:34,089 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 [2022-07-12 14:02:34,093 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 [2022-07-12 14:02:34,094 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] [2022-07-12 14:02:34,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2022-07-12 14:02:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1660. [2022-07-12 14:02:34,177 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) [2022-07-12 14:02:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2460 transitions. [2022-07-12 14:02:34,192 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2460 transitions. Word has length 135 [2022-07-12 14:02:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:02:34,192 INFO L495 AbstractCegarLoop]: Abstraction has 1660 states and 2460 transitions. [2022-07-12 14:02:34,193 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) [2022-07-12 14:02:34,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2460 transitions. [2022-07-12 14:02:34,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-12 14:02:34,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:02:34,200 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] [2022-07-12 14:02:34,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 14:02:34,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:02:34,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:02:34,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:02:34,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1914785415, now seen corresponding path program 1 times [2022-07-12 14:02:34,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:02:34,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482097824] [2022-07-12 14:02:34,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:02:34,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:02:34,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:02:34,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:02:34,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 14:02:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:02:35,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1614 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 14:02:35,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:02:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-12 14:02:36,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:02:36,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:02:36,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482097824] [2022-07-12 14:02:36,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482097824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:02:36,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:02:36,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 14:02:36,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714293739] [2022-07-12 14:02:36,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:02:36,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 14:02:36,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:02:36,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 14:02:36,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 14:02:36,140 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) [2022-07-12 14:02:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:02:36,410 INFO L93 Difference]: Finished difference Result 3310 states and 4908 transitions. [2022-07-12 14:02:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:02:36,411 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 [2022-07-12 14:02:36,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:02:36,424 INFO L225 Difference]: With dead ends: 3310 [2022-07-12 14:02:36,424 INFO L226 Difference]: Without dead ends: 1661 [2022-07-12 14:02:36,435 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 [2022-07-12 14:02:36,437 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 [2022-07-12 14:02:36,438 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] [2022-07-12 14:02:36,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-07-12 14:02:36,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1661. [2022-07-12 14:02:36,485 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) [2022-07-12 14:02:36,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2461 transitions. [2022-07-12 14:02:36,498 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2461 transitions. Word has length 135 [2022-07-12 14:02:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:02:36,501 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2461 transitions. [2022-07-12 14:02:36,501 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) [2022-07-12 14:02:36,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2461 transitions. [2022-07-12 14:02:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-12 14:02:36,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:02:36,503 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] [2022-07-12 14:02:36,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 14:02:36,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:02:36,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:02:36,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:02:36,712 INFO L85 PathProgramCache]: Analyzing trace with hash 914592341, now seen corresponding path program 1 times [2022-07-12 14:02:36,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:02:36,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534237690] [2022-07-12 14:02:36,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:02:36,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:02:36,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:02:36,716 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:02:36,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 14:02:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:02:38,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 14:02:38,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:02:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-12 14:02:38,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:02:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-07-12 14:02:39,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:02:39,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534237690] [2022-07-12 14:02:39,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534237690] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:02:39,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:02:39,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 14:02:39,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588379491] [2022-07-12 14:02:39,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:02:39,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 14:02:39,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:02:39,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 14:02:39,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:02:39,156 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) [2022-07-12 14:02:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:02:40,305 INFO L93 Difference]: Finished difference Result 3321 states and 4925 transitions. [2022-07-12 14:02:40,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 14:02:40,306 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 [2022-07-12 14:02:40,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:02:40,317 INFO L225 Difference]: With dead ends: 3321 [2022-07-12 14:02:40,317 INFO L226 Difference]: Without dead ends: 1671 [2022-07-12 14:02:40,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-12 14:02:40,332 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 [2022-07-12 14:02:40,333 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] [2022-07-12 14:02:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-07-12 14:02:40,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2022-07-12 14:02:40,376 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) [2022-07-12 14:02:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2473 transitions. [2022-07-12 14:02:40,385 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2473 transitions. Word has length 139 [2022-07-12 14:02:40,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:02:40,387 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2473 transitions. [2022-07-12 14:02:40,387 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) [2022-07-12 14:02:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2473 transitions. [2022-07-12 14:02:40,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-12 14:02:40,389 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:02:40,390 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] [2022-07-12 14:02:40,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 14:02:40,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:02:40,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:02:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:02:40,605 INFO L85 PathProgramCache]: Analyzing trace with hash -58419911, now seen corresponding path program 2 times [2022-07-12 14:02:40,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:02:40,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748553540] [2022-07-12 14:02:40,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:02:40,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:02:40,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:02:40,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:02:40,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 14:02:41,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:02:41,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:02:41,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 14:02:41,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:02:41,944 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 [2022-07-12 14:02:42,010 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-07-12 14:02:42,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:02:42,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:02:42,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748553540] [2022-07-12 14:02:42,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748553540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:02:42,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:02:42,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 14:02:42,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486893748] [2022-07-12 14:02:42,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:02:42,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:02:42,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:02:42,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:02:42,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:02:42,011 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) [2022-07-12 14:02:44,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:02:46,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:02:48,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:02:51,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:02:53,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:02:55,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:02:57,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:02:59,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:01,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:03,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:05,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:07,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:09,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:10,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:12,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:14,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:17,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:19,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:20,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:25,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:29,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:31,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:33,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:36,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:38,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:39,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:41,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:43,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:45,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:47,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:49,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:51,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:54,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:57,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:03:59,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:01,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:03,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:05,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:07,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:09,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:11,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:13,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:15,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:17,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:19,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:22,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:24,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:26,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:28,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:30,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:32,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:33,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:34,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:39,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:40,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:43,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:45,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:04:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:04:46,800 INFO L93 Difference]: Finished difference Result 3278 states and 4925 transitions. [2022-07-12 14:04:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 14:04:46,802 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 [2022-07-12 14:04:46,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:04:46,812 INFO L225 Difference]: With dead ends: 3278 [2022-07-12 14:04:46,812 INFO L226 Difference]: Without dead ends: 1647 [2022-07-12 14:04:46,824 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 [2022-07-12 14:04:46,825 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 24 mSDsluCounter, 6580 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 4 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8957 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:04:46,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8957 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 565 Invalid, 36 Unknown, 0 Unchecked, 124.6s Time] [2022-07-12 14:04:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-07-12 14:04:46,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1628. [2022-07-12 14:04:46,865 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) [2022-07-12 14:04:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2400 transitions. [2022-07-12 14:04:46,874 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2400 transitions. Word has length 149 [2022-07-12 14:04:46,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:04:46,875 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2400 transitions. [2022-07-12 14:04:46,875 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) [2022-07-12 14:04:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2400 transitions. [2022-07-12 14:04:46,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-12 14:04:46,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:04:46,878 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] [2022-07-12 14:04:46,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:04:47,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:04:47,091 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:04:47,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:04:47,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1109194293, now seen corresponding path program 1 times [2022-07-12 14:04:47,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:04:47,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278462629] [2022-07-12 14:04:47,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:04:47,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:04:47,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:04:47,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:04:47,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 14:04:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:04:48,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 14:04:48,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:04:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 77 proven. 10 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-12 14:04:49,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:04:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-12 14:04:51,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:04:51,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278462629] [2022-07-12 14:04:51,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278462629] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:04:51,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:04:51,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-12 14:04:51,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416494204] [2022-07-12 14:04:51,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:04:51,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 14:04:51,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:04:51,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 14:04:51,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-12 14:04:51,619 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) [2022-07-12 14:04:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:04:54,239 INFO L93 Difference]: Finished difference Result 3260 states and 4809 transitions. [2022-07-12 14:04:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 14:04:54,240 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 [2022-07-12 14:04:54,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:04:54,248 INFO L225 Difference]: With dead ends: 3260 [2022-07-12 14:04:54,248 INFO L226 Difference]: Without dead ends: 1640 [2022-07-12 14:04:54,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2022-07-12 14:04:54,256 INFO L413 NwaCegarLoop]: 2388 mSDtfsCounter, 52 mSDsluCounter, 11921 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:04:54,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 14309 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 14:04:54,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2022-07-12 14:04:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1634. [2022-07-12 14:04:54,291 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) [2022-07-12 14:04:54,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2407 transitions. [2022-07-12 14:04:54,299 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2407 transitions. Word has length 151 [2022-07-12 14:04:54,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:04:54,301 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 2407 transitions. [2022-07-12 14:04:54,301 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) [2022-07-12 14:04:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2407 transitions. [2022-07-12 14:04:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 14:04:54,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:04:54,304 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] [2022-07-12 14:04:54,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 14:04:54,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:04:54,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:04:54,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:04:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash 806146123, now seen corresponding path program 2 times [2022-07-12 14:04:54,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:04:54,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277950969] [2022-07-12 14:04:54,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:04:54,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:04:54,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:04:54,527 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:04:54,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 14:04:55,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:04:55,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:04:55,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:04:55,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:04:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-07-12 14:04:55,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:04:55,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:04:55,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277950969] [2022-07-12 14:04:55,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277950969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:04:55,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:04:55,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:04:55,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697965650] [2022-07-12 14:04:55,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:04:55,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:04:55,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:04:55,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:04:55,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:04:55,884 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) [2022-07-12 14:04:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:04:56,198 INFO L93 Difference]: Finished difference Result 4723 states and 7275 transitions. [2022-07-12 14:04:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:04:56,199 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 [2022-07-12 14:04:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:04:56,214 INFO L225 Difference]: With dead ends: 4723 [2022-07-12 14:04:56,214 INFO L226 Difference]: Without dead ends: 3135 [2022-07-12 14:04:56,224 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 [2022-07-12 14:04:56,225 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 [2022-07-12 14:04:56,226 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] [2022-07-12 14:04:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2022-07-12 14:04:56,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 3116. [2022-07-12 14:04:56,310 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) [2022-07-12 14:04:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4745 transitions. [2022-07-12 14:04:56,325 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4745 transitions. Word has length 163 [2022-07-12 14:04:56,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:04:56,326 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4745 transitions. [2022-07-12 14:04:56,326 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) [2022-07-12 14:04:56,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4745 transitions. [2022-07-12 14:04:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-12 14:04:56,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:04:56,329 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] [2022-07-12 14:04:56,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 14:04:56,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:04:56,539 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:04:56,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:04:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1296385389, now seen corresponding path program 1 times [2022-07-12 14:04:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:04:56,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591733274] [2022-07-12 14:04:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:04:56,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:04:56,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:04:56,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:04:56,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 14:04:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:04:58,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1906 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 14:04:58,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:04:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 262 proven. 3 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-07-12 14:04:58,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:04:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-07-12 14:04:59,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:04:59,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591733274] [2022-07-12 14:04:59,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591733274] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:04:59,752 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 14:04:59,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-07-12 14:04:59,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840560233] [2022-07-12 14:04:59,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 14:04:59,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 14:04:59,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:04:59,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 14:04:59,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-12 14:04:59,754 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) [2022-07-12 14:05:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:00,694 INFO L93 Difference]: Finished difference Result 6216 states and 9465 transitions. [2022-07-12 14:05:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 14:05:00,696 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 [2022-07-12 14:05:00,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:00,717 INFO L225 Difference]: With dead ends: 6216 [2022-07-12 14:05:00,717 INFO L226 Difference]: Without dead ends: 3116 [2022-07-12 14:05:00,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-12 14:05:00,733 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 20 mSDsluCounter, 11890 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:05:00,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14271 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 14:05:00,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-12 14:05:00,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-07-12 14:05:00,821 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) [2022-07-12 14:05:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4741 transitions. [2022-07-12 14:05:00,834 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4741 transitions. Word has length 164 [2022-07-12 14:05:00,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:05:00,835 INFO L495 AbstractCegarLoop]: Abstraction has 3116 states and 4741 transitions. [2022-07-12 14:05:00,835 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) [2022-07-12 14:05:00,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4741 transitions. [2022-07-12 14:05:00,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-12 14:05:00,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:00,837 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] [2022-07-12 14:05:00,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 14:05:01,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:05:01,052 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:01,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:01,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1126223917, now seen corresponding path program 2 times [2022-07-12 14:05:01,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:01,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935572068] [2022-07-12 14:05:01,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:05:01,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:01,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:01,058 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:05:01,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 14:05:02,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 14:05:02,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:05:02,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:05:02,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:05:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 14:05:02,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:05:02,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:05:02,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935572068] [2022-07-12 14:05:02,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935572068] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:05:02,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:05:02,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:05:02,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417583283] [2022-07-12 14:05:02,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:05:02,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:05:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:05:02,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:05:02,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:05:02,419 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) [2022-07-12 14:05:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:02,788 INFO L93 Difference]: Finished difference Result 7764 states and 12276 transitions. [2022-07-12 14:05:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:05:02,789 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 [2022-07-12 14:05:02,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:02,813 INFO L225 Difference]: With dead ends: 7764 [2022-07-12 14:05:02,813 INFO L226 Difference]: Without dead ends: 4694 [2022-07-12 14:05:02,829 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 [2022-07-12 14:05:02,830 INFO L413 NwaCegarLoop]: 2816 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, 5309 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 [2022-07-12 14:05:02,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 5309 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 14:05:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-07-12 14:05:02,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4675. [2022-07-12 14:05:02,946 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) [2022-07-12 14:05:02,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 7269 transitions. [2022-07-12 14:05:02,969 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 7269 transitions. Word has length 166 [2022-07-12 14:05:02,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:05:02,970 INFO L495 AbstractCegarLoop]: Abstraction has 4675 states and 7269 transitions. [2022-07-12 14:05:02,970 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) [2022-07-12 14:05:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 7269 transitions. [2022-07-12 14:05:02,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-12 14:05:02,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:02,972 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] [2022-07-12 14:05:03,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-12 14:05:03,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:05:03,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:03,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1579180554, now seen corresponding path program 1 times [2022-07-12 14:05:03,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:03,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573192737] [2022-07-12 14:05:03,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:05:03,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:03,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:03,191 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:05:03,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 14:05:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:05:06,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:05:06,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:05:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 14:05:06,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:05:06,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:05:06,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573192737] [2022-07-12 14:05:06,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573192737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:05:06,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:05:06,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:05:06,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124085479] [2022-07-12 14:05:06,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:05:06,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:05:06,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:05:06,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:05:06,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:05:06,213 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) [2022-07-12 14:05:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:06,596 INFO L93 Difference]: Finished difference Result 13431 states and 20925 transitions. [2022-07-12 14:05:06,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:05:06,597 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 [2022-07-12 14:05:06,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:06,658 INFO L225 Difference]: With dead ends: 13431 [2022-07-12 14:05:06,659 INFO L226 Difference]: Without dead ends: 8802 [2022-07-12 14:05:06,688 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 [2022-07-12 14:05:06,691 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 [2022-07-12 14:05:06,691 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] [2022-07-12 14:05:06,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8802 states. [2022-07-12 14:05:06,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8802 to 8779. [2022-07-12 14:05:06,971 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) [2022-07-12 14:05:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8779 states to 8779 states and 13681 transitions. [2022-07-12 14:05:07,012 INFO L78 Accepts]: Start accepts. Automaton has 8779 states and 13681 transitions. Word has length 166 [2022-07-12 14:05:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:05:07,015 INFO L495 AbstractCegarLoop]: Abstraction has 8779 states and 13681 transitions. [2022-07-12 14:05:07,015 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) [2022-07-12 14:05:07,015 INFO L276 IsEmpty]: Start isEmpty. Operand 8779 states and 13681 transitions. [2022-07-12 14:05:07,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-12 14:05:07,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:07,017 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] [2022-07-12 14:05:07,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 14:05:07,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:05:07,231 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:07,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:07,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1337346782, now seen corresponding path program 1 times [2022-07-12 14:05:07,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:07,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579095831] [2022-07-12 14:05:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:05:07,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:07,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:07,234 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:05:07,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 14:05:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:05:10,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:05:10,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:05:10,333 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 14:05:10,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:05:10,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:05:10,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579095831] [2022-07-12 14:05:10,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579095831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:05:10,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:05:10,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:05:10,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328006303] [2022-07-12 14:05:10,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:05:10,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:05:10,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:05:10,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:05:10,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:05:10,335 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) [2022-07-12 14:05:10,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:10,791 INFO L93 Difference]: Finished difference Result 20473 states and 33126 transitions. [2022-07-12 14:05:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:05:10,791 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 [2022-07-12 14:05:10,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:10,845 INFO L225 Difference]: With dead ends: 20473 [2022-07-12 14:05:10,845 INFO L226 Difference]: Without dead ends: 11740 [2022-07-12 14:05:10,894 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 [2022-07-12 14:05:10,894 INFO L413 NwaCegarLoop]: 2804 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, 5297 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 [2022-07-12 14:05:10,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 5297 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:05:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2022-07-12 14:05:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11721. [2022-07-12 14:05:11,286 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) [2022-07-12 14:05:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11721 states to 11721 states and 18566 transitions. [2022-07-12 14:05:11,345 INFO L78 Accepts]: Start accepts. Automaton has 11721 states and 18566 transitions. Word has length 167 [2022-07-12 14:05:11,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:05:11,345 INFO L495 AbstractCegarLoop]: Abstraction has 11721 states and 18566 transitions. [2022-07-12 14:05:11,345 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) [2022-07-12 14:05:11,345 INFO L276 IsEmpty]: Start isEmpty. Operand 11721 states and 18566 transitions. [2022-07-12 14:05:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-12 14:05:11,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:11,347 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] [2022-07-12 14:05:11,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 14:05:11,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:05:11,557 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:11,557 INFO L85 PathProgramCache]: Analyzing trace with hash -69869020, now seen corresponding path program 1 times [2022-07-12 14:05:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:11,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966135555] [2022-07-12 14:05:11,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:05:11,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:11,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:11,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 14:05:11,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 14:05:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:05:14,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:05:14,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:05:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 14:05:14,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:05:14,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:05:14,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966135555] [2022-07-12 14:05:14,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966135555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:05:14,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:05:14,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 14:05:14,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116883407] [2022-07-12 14:05:14,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:05:14,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:05:14,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:05:14,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:05:14,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:05:14,695 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) [2022-07-12 14:05:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:15,232 INFO L93 Difference]: Finished difference Result 26351 states and 43316 transitions. [2022-07-12 14:05:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:05:15,233 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 [2022-07-12 14:05:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:15,296 INFO L225 Difference]: With dead ends: 26351 [2022-07-12 14:05:15,297 INFO L226 Difference]: Without dead ends: 14676 [2022-07-12 14:05:15,358 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 [2022-07-12 14:05:15,359 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 14:05:15,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 5293 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 14:05:15,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-07-12 14:05:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 14657. [2022-07-12 14:05:15,835 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) [2022-07-12 14:05:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14657 states to 14657 states and 23417 transitions. [2022-07-12 14:05:15,922 INFO L78 Accepts]: Start accepts. Automaton has 14657 states and 23417 transitions. Word has length 168 [2022-07-12 14:05:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:05:15,923 INFO L495 AbstractCegarLoop]: Abstraction has 14657 states and 23417 transitions. [2022-07-12 14:05:15,923 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) [2022-07-12 14:05:15,923 INFO L276 IsEmpty]: Start isEmpty. Operand 14657 states and 23417 transitions. [2022-07-12 14:05:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-12 14:05:15,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:15,925 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] [2022-07-12 14:05:15,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 14:05:16,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:05:16,129 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:16,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:16,129 INFO L85 PathProgramCache]: Analyzing trace with hash -69115209, now seen corresponding path program 1 times [2022-07-12 14:05:16,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:16,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098553495] [2022-07-12 14:05:16,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:05:16,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:16,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:16,132 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) [2022-07-12 14:05:16,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 14:05:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:05:19,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:05:19,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:05:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 14:05:20,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:05:20,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:05:20,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098553495] [2022-07-12 14:05:20,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098553495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:05:20,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:05:20,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:05:20,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25084343] [2022-07-12 14:05:20,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:05:20,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:05:20,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:05:20,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:05:20,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:05:20,981 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) [2022-07-12 14:05:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:21,293 INFO L93 Difference]: Finished difference Result 14721 states and 23459 transitions. [2022-07-12 14:05:21,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:05:21,293 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 [2022-07-12 14:05:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:21,338 INFO L225 Difference]: With dead ends: 14721 [2022-07-12 14:05:21,339 INFO L226 Difference]: Without dead ends: 14717 [2022-07-12 14:05:21,344 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 [2022-07-12 14:05:21,345 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 [2022-07-12 14:05:21,345 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] [2022-07-12 14:05:21,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14717 states. [2022-07-12 14:05:21,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14717 to 14715. [2022-07-12 14:05:21,700 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) [2022-07-12 14:05:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14715 states to 14715 states and 23444 transitions. [2022-07-12 14:05:21,779 INFO L78 Accepts]: Start accepts. Automaton has 14715 states and 23444 transitions. Word has length 168 [2022-07-12 14:05:21,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:05:21,780 INFO L495 AbstractCegarLoop]: Abstraction has 14715 states and 23444 transitions. [2022-07-12 14:05:21,780 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) [2022-07-12 14:05:21,780 INFO L276 IsEmpty]: Start isEmpty. Operand 14715 states and 23444 transitions. [2022-07-12 14:05:21,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-12 14:05:21,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:21,782 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] [2022-07-12 14:05:21,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 14:05:22,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:05:22,007 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2143673234, now seen corresponding path program 1 times [2022-07-12 14:05:22,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:22,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963350306] [2022-07-12 14:05:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:05:22,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:22,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:22,011 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) [2022-07-12 14:05:22,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 14:05:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:05:25,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:05:25,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:05:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 14:05:27,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:05:27,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:05:27,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963350306] [2022-07-12 14:05:27,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963350306] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:05:27,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:05:27,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:05:27,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744163949] [2022-07-12 14:05:27,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:05:27,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:05:27,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:05:27,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:05:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:05:27,299 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) [2022-07-12 14:05:27,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:27,541 INFO L93 Difference]: Finished difference Result 14717 states and 23445 transitions. [2022-07-12 14:05:27,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:05:27,542 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 [2022-07-12 14:05:27,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:27,602 INFO L225 Difference]: With dead ends: 14717 [2022-07-12 14:05:27,602 INFO L226 Difference]: Without dead ends: 14714 [2022-07-12 14:05:27,614 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 [2022-07-12 14:05:27,614 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 [2022-07-12 14:05:27,615 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] [2022-07-12 14:05:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14714 states. [2022-07-12 14:05:28,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14714 to 14714. [2022-07-12 14:05:28,073 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) [2022-07-12 14:05:28,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14714 states to 14714 states and 23442 transitions. [2022-07-12 14:05:28,150 INFO L78 Accepts]: Start accepts. Automaton has 14714 states and 23442 transitions. Word has length 169 [2022-07-12 14:05:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:05:28,151 INFO L495 AbstractCegarLoop]: Abstraction has 14714 states and 23442 transitions. [2022-07-12 14:05:28,151 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) [2022-07-12 14:05:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 14714 states and 23442 transitions. [2022-07-12 14:05:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-12 14:05:28,157 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:05:28,157 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] [2022-07-12 14:05:28,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 14:05:28,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 14:05:28,379 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:05:28,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:05:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2030457702, now seen corresponding path program 1 times [2022-07-12 14:05:28,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 14:05:28,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630259855] [2022-07-12 14:05:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:05:28,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 14:05:28,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 14:05:28,383 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) [2022-07-12 14:05:28,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 14:05:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:05:31,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 14:05:31,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:05:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-12 14:05:34,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:05:34,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 14:05:34,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630259855] [2022-07-12 14:05:34,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630259855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:05:34,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:05:34,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 14:05:34,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072464024] [2022-07-12 14:05:34,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:05:34,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 14:05:34,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 14:05:34,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 14:05:34,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 14:05:34,355 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) [2022-07-12 14:05:34,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:05:34,719 INFO L93 Difference]: Finished difference Result 14716 states and 23443 transitions. [2022-07-12 14:05:34,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 14:05:34,720 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 [2022-07-12 14:05:34,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:05:34,805 INFO L225 Difference]: With dead ends: 14716 [2022-07-12 14:05:34,805 INFO L226 Difference]: Without dead ends: 14713 [2022-07-12 14:05:34,820 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 [2022-07-12 14:05:34,821 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 [2022-07-12 14:05:34,821 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] [2022-07-12 14:05:34,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14713 states.