./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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-43_2a-drivers--net--ethernet--ti--tlan.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 aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:52:07,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:52:07,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:52:07,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:52:07,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:52:07,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:52:07,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:52:07,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:52:07,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:52:07,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:52:07,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:52:07,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:52:07,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:52:07,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:52:07,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:52:07,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:52:07,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:52:07,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:52:07,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:52:07,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:52:07,535 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:52:07,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:52:07,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:52:07,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:52:07,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:52:07,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:52:07,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:52:07,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:52:07,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:52:07,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:52:07,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:52:07,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:52:07,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:52:07,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:52:07,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:52:07,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:52:07,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:52:07,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:52:07,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:52:07,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:52:07,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:52:07,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:52:07,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:52:07,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:52:07,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:52:07,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:52:07,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:52:07,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:52:07,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:52:07,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:52:07,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:52:07,600 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:52:07,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:52:07,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:52:07,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:52:07,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:52:07,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:52:07,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:52:07,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:52:07,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:52:07,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:52:07,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:52:07,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:52:07,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:52:07,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:52:07,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:52:07,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:52:07,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:52:07,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:52:07,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:52:07,605 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:52:07,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:52:07,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:52:07,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f [2022-07-21 12:52:07,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:52:07,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:52:07,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:52:07,962 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:52:07,964 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:52:07,966 INFO L432 ainManager$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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2022-07-21 12:52:08,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d722cd65c/cffe4944d98a4393930bb0b1047fc9c8/FLAGb27b78ac8 [2022-07-21 12:52:08,831 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:52:08,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2022-07-21 12:52:08,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d722cd65c/cffe4944d98a4393930bb0b1047fc9c8/FLAGb27b78ac8 [2022-07-21 12:52:09,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d722cd65c/cffe4944d98a4393930bb0b1047fc9c8 [2022-07-21 12:52:09,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:52:09,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:52:09,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:52:09,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:52:09,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:52:09,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:09" (1/1) ... [2022-07-21 12:52:09,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79fd65c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:09, skipping insertion in model container [2022-07-21 12:52:09,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:09" (1/1) ... [2022-07-21 12:52:09,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:52:09,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:52:11,402 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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2022-07-21 12:52:11,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:11,497 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:52:11,763 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: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7863] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 12:52:11,768 INFO L158 Benchmark]: Toolchain (without parser) took 2389.94ms. Allocated memory was 67.1MB in the beginning and 117.4MB in the end (delta: 50.3MB). Free memory was 39.9MB in the beginning and 48.8MB in the end (delta: -8.9MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2022-07-21 12:52:11,768 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 34.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 12:52:11,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2386.42ms. Allocated memory was 67.1MB in the beginning and 117.4MB in the end (delta: 50.3MB). Free memory was 39.8MB in the beginning and 48.8MB in the end (delta: -9.1MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2022-07-21 12:52:11,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 34.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2386.42ms. Allocated memory was 67.1MB in the beginning and 117.4MB in the end (delta: 50.3MB). Free memory was 39.8MB in the beginning and 48.8MB in the end (delta: -9.1MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7863] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7863]: 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-43_2a-drivers--net--ethernet--ti--tlan.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 aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:52:13,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:52:13,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:52:13,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:52:13,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:52:13,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:52:13,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:52:13,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:52:13,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:52:13,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:52:13,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:52:13,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:52:13,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:52:13,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:52:13,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:52:13,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:52:13,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:52:13,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:52:13,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:52:13,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:52:13,482 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:52:13,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:52:13,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:52:13,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:52:13,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:52:13,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:52:13,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:52:13,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:52:13,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:52:13,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:52:13,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:52:13,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:52:13,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:52:13,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:52:13,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:52:13,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:52:13,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:52:13,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:52:13,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:52:13,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:52:13,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:52:13,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:52:13,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 12:52:13,540 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:52:13,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:52:13,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:52:13,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:52:13,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:52:13,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:52:13,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:52:13,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:52:13,544 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:52:13,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:52:13,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:52:13,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:52:13,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:52:13,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:52:13,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 12:52:13,546 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 12:52:13,546 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 12:52:13,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:52:13,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:52:13,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:52:13,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:52:13,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:52:13,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:52:13,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:52:13,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:52:13,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:52:13,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:52:13,548 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 12:52:13,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 12:52:13,548 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:52:13,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:52:13,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:52:13,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 12:52:13,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa052019b2e545fedc58252b88c286bfb7f233e130d9e12072cdb5cf6783cf5f [2022-07-21 12:52:13,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:52:13,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:52:13,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:52:13,896 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:52:13,896 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:52:13,898 INFO L432 ainManager$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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2022-07-21 12:52:13,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6ef56bfd/d74c63ad7d9f445b8275178f83248b96/FLAG49cc21bd8 [2022-07-21 12:52:14,736 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:52:14,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2022-07-21 12:52:14,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6ef56bfd/d74c63ad7d9f445b8275178f83248b96/FLAG49cc21bd8 [2022-07-21 12:52:15,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6ef56bfd/d74c63ad7d9f445b8275178f83248b96 [2022-07-21 12:52:15,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:52:15,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:52:15,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:52:15,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:52:15,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:52:15,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:15" (1/1) ... [2022-07-21 12:52:15,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e8617d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:15, skipping insertion in model container [2022-07-21 12:52:15,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:15" (1/1) ... [2022-07-21 12:52:15,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:52:15,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:52:17,262 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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2022-07-21 12:52:17,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:17,394 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 12:52:17,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:52:17,719 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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2022-07-21 12:52:17,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:17,767 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:52:18,161 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-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i[304655,304668] [2022-07-21 12:52:18,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:52:18,335 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:52:18,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18 WrapperNode [2022-07-21 12:52:18,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:52:18,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:52:18,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:52:18,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:52:18,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,596 INFO L137 Inliner]: procedures = 308, calls = 2066, calls flagged for inlining = 144, calls inlined = 138, statements flattened = 4624 [2022-07-21 12:52:18,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:52:18,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:52:18,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:52:18,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:52:18,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:52:18,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:52:18,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:52:18,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:52:18,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (1/1) ... [2022-07-21 12:52:18,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:52:18,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:52:18,908 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) [2022-07-21 12:52:18,934 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 [2022-07-21 12:52:18,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 12:52:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-07-21 12:52:18,950 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-07-21 12:52:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_7 [2022-07-21 12:52:18,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_7 [2022-07-21 12:52:18,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 12:52:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-21 12:52:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-21 12:52:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 12:52:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 12:52:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 12:52:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 12:52:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:52:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:52:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:52:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:52:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 12:52:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 12:52:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-07-21 12:52:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-07-21 12:52:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 12:52:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 12:52:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 12:52:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 12:52:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_read_byte [2022-07-21 12:52:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_read_byte [2022-07-21 12:52:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:52:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:52:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-07-21 12:52:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-07-21 12:52:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-07-21 12:52:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-07-21 12:52:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-07-21 12:52:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-07-21 12:52:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-07-21 12:52:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-07-21 12:52:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:52:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:52:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 12:52:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 12:52:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 12:52:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 12:52:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-07-21 12:52:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-07-21 12:52:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 12:52:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 12:52:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-21 12:52:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-21 12:52:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:52:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:52:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-07-21 12:52:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-07-21 12:52:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ioctl [2022-07-21 12:52:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ioctl [2022-07-21 12:52:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:52:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:52:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 12:52:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 12:52:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-07-21 12:52:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-07-21 12:52:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-07-21 12:52:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-07-21 12:52:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:52:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-07-21 12:52:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-07-21 12:52:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 12:52:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 12:52:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-21 12:52:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-21 12:52:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:52:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 12:52:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 12:52:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 12:52:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 12:52:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 12:52:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 12:52:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_stats [2022-07-21 12:52:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_stats [2022-07-21 12:52:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 12:52:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 12:52:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-21 12:52:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-21 12:52:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 12:52:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 12:52:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 12:52:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 12:52:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 12:52:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 12:52:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 12:52:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:52:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 12:52:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:52:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 12:52:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 12:52:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 12:52:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 12:52:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-07-21 12:52:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-07-21 12:52:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-21 12:52:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-21 12:52:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-07-21 12:52:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-07-21 12:52:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-21 12:52:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-21 12:52:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-21 12:52:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-21 12:52:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 12:52:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 12:52:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 12:52:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 12:52:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 12:52:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 12:52:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-21 12:52:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-21 12:52:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-07-21 12:52:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-07-21 12:52:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-07-21 12:52:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-07-21 12:52:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 12:52:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 12:52:18,976 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-07-21 12:52:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-07-21 12:52:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-07-21 12:52:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-07-21 12:52:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-07-21 12:52:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-07-21 12:52:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 12:52:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 12:52:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout_work [2022-07-21 12:52:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout_work [2022-07-21 12:52:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 12:52:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 12:52:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-21 12:52:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-21 12:52:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 12:52:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 12:52:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 12:52:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 12:52:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-07-21 12:52:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-07-21 12:52:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-07-21 12:52:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-07-21 12:52:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-07-21 12:52:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-07-21 12:52:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-21 12:52:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-21 12:52:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-07-21 12:52:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-07-21 12:52:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-07-21 12:52:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-07-21 12:52:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 12:52:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 12:52:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 12:52:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 12:52:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-07-21 12:52:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-07-21 12:52:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-07-21 12:52:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-07-21 12:52:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-07-21 12:52:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-07-21 12:52:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:52:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:52:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-07-21 12:52:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-07-21 12:52:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-07-21 12:52:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-07-21 12:52:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:52:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:52:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:52:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-07-21 12:52:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-07-21 12:52:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:52:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:52:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-07-21 12:52:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-07-21 12:52:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-07-21 12:52:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-07-21 12:52:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 12:52:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 12:52:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:52:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-07-21 12:52:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-07-21 12:52:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 12:52:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 12:52:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 12:52:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 12:52:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:52:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 12:52:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 12:52:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 12:52:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-07-21 12:52:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-07-21 12:52:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-07-21 12:52:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-07-21 12:52:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-07-21 12:52:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-07-21 12:52:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-07-21 12:52:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-07-21 12:52:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_7 [2022-07-21 12:52:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_7 [2022-07-21 12:52:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 12:52:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 12:52:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-07-21 12:52:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-07-21 12:52:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 12:52:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 12:52:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-07-21 12:52:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-07-21 12:52:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-21 12:52:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-21 12:52:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-07-21 12:52:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-07-21 12:52:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-21 12:52:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-07-21 12:52:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-07-21 12:52:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-21 12:52:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-21 12:52:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-21 12:52:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-21 12:52:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:52:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:52:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-07-21 12:52:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-07-21 12:52:19,711 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:52:19,714 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:52:28,853 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:53:00,211 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7041-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret320#1;havoc tlan_eisa_probe_#t~ret320#1; [2022-07-21 12:53:00,211 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7041: SUMMARY for call tlan_eisa_probe_#t~ret320#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-21 12:53:00,211 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2022-07-21 12:53:00,211 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7043: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret321#1;havoc tlan_eisa_probe_#t~ret321#1; [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: SUMMARY for call tlan_eisa_probe_#t~ret321#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7048: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7048: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7049: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7053-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret322#1;havoc tlan_eisa_probe_#t~ret322#1; [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7053: SUMMARY for call tlan_eisa_probe_#t~ret322#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-21 12:53:00,212 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7054: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7054: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet328#1; [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055-1: assume !(16bv32 == ~debug~0); [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7055: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet323#1; [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059: assume !(16bv32 == ~debug~0); [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7059-2: SUMMARY for call tlan_eisa_probe_#t~ret324#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7063: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret324#1;havoc tlan_eisa_probe_#t~ret324#1;tlan_eisa_probe_#t~switch325#1 := 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 12:53:00,213 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7064: havoc tlan_eisa_probe_#t~switch325#1; [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7065: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 5bv32; [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7065: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := tlan_eisa_probe_#t~switch325#1 || 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7068: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 9bv32; [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7068: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := tlan_eisa_probe_#t~switch325#1 || 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7071: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 10bv32; [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7071: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := tlan_eisa_probe_#t~switch325#1 || 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7074: assume tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_~irq~0#1 := 11bv32; [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7074: assume !tlan_eisa_probe_#t~switch325#1;tlan_eisa_probe_#t~switch325#1 := true; [2022-07-21 12:53:00,214 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7077: assume tlan_eisa_probe_#t~switch325#1; [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7077: assume !tlan_eisa_probe_#t~switch325#1; [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7078: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet327#1; [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7078: assume !(16bv32 == ~debug~0); [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7080: SUMMARY for call tlan_eisa_probe_#t~ret326#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7081: tlan_eisa_probe_~rc~3#1 := tlan_eisa_probe_#t~ret326#1;havoc tlan_eisa_probe_#t~ret326#1; [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022: SUMMARY for call tlan_eisa_probe_#t~ret314#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-21 12:53:00,215 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7022-1: tlan_eisa_probe_~tmp~38#1 := tlan_eisa_probe_#t~ret314#1;havoc tlan_eisa_probe_#t~ret314#1;havoc tlan_eisa_probe_#t~nondet315#1; [2022-07-21 12:53:00,216 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7090-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2022-07-21 12:53:00,216 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7026-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet318#1; [2022-07-21 12:53:00,216 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7026-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-21 12:53:00,216 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027-1: tlan_eisa_probe_~tmp___0~11#1 := tlan_eisa_probe_#t~ret316#1;havoc tlan_eisa_probe_#t~ret316#1;havoc tlan_eisa_probe_#t~nondet317#1; [2022-07-21 12:53:00,218 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027: SUMMARY for call tlan_eisa_probe_#t~ret316#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-21 12:53:00,219 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7031-1: call tlan_eisa_probe_#t~ret319#1.base, tlan_eisa_probe_#t~ret319#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~4#1.base, tlan_eisa_probe_~tmp___1~4#1.offset := tlan_eisa_probe_#t~ret319#1.base, tlan_eisa_probe_#t~ret319#1.offset;havoc tlan_eisa_probe_#t~ret319#1.base, tlan_eisa_probe_#t~ret319#1.offset; [2022-07-21 12:53:00,219 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7097: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-21 12:53:00,219 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7097: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-21 12:53:00,219 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7099: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-21 12:53:00,219 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7099: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-21 12:53:00,219 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7037: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~4#1.base, tlan_eisa_probe_~tmp___1~4#1.offset); [2022-07-21 12:53:00,220 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7037: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~4#1.base, tlan_eisa_probe_~tmp___1~4#1.offset)); [2022-07-21 12:53:00,355 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:53:00,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:53:00,382 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:53:00,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:00 BoogieIcfgContainer [2022-07-21 12:53:00,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:53:00,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:53:00,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:53:00,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:53:00,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:52:15" (1/3) ... [2022-07-21 12:53:00,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e65b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:00, skipping insertion in model container [2022-07-21 12:53:00,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:18" (2/3) ... [2022-07-21 12:53:00,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e65b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:00, skipping insertion in model container [2022-07-21 12:53:00,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:00" (3/3) ... [2022-07-21 12:53:00,396 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--ti--tlan.ko-entry_point.cil.out.i [2022-07-21 12:53:00,408 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:53:00,409 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:53:00,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:53:00,519 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@646218e3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@587e2f23 [2022-07-21 12:53:00,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:53:00,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 2023 states, 1352 states have (on average 1.3150887573964498) internal successors, (1778), 1400 states have internal predecessors, (1778), 570 states have call successors, (570), 100 states have call predecessors, (570), 99 states have return successors, (562), 551 states have call predecessors, (562), 562 states have call successors, (562) [2022-07-21 12:53:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-21 12:53:00,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:00,561 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:00,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash 112556324, now seen corresponding path program 1 times [2022-07-21 12:53:00,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:00,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828409541] [2022-07-21 12:53:00,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:00,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:00,599 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) [2022-07-21 12:53:00,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 12:53:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:03,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 12:53:03,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-21 12:53:03,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:03,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:03,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828409541] [2022-07-21 12:53:03,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828409541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:03,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:03,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:53:03,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384418979] [2022-07-21 12:53:03,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:03,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:53:03,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:03,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:53:03,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:53:03,502 INFO L87 Difference]: Start difference. First operand has 2023 states, 1352 states have (on average 1.3150887573964498) internal successors, (1778), 1400 states have internal predecessors, (1778), 570 states have call successors, (570), 100 states have call predecessors, (570), 99 states have return successors, (562), 551 states have call predecessors, (562), 562 states have call successors, (562) Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 12:53:04,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:04,223 INFO L93 Difference]: Finished difference Result 4047 states and 5868 transitions. [2022-07-21 12:53:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 12:53:04,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 190 [2022-07-21 12:53:04,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:04,265 INFO L225 Difference]: With dead ends: 4047 [2022-07-21 12:53:04,265 INFO L226 Difference]: Without dead ends: 1983 [2022-07-21 12:53:04,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:53:04,295 INFO L413 NwaCegarLoop]: 2899 mSDtfsCounter, 6 mSDsluCounter, 11580 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14479 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:04,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14479 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:53:04,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-07-21 12:53:04,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1983. [2022-07-21 12:53:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1983 states, 1328 states have (on average 1.3087349397590362) internal successors, (1738), 1367 states have internal predecessors, (1738), 556 states have call successors, (556), 98 states have call predecessors, (556), 98 states have return successors, (556), 544 states have call predecessors, (556), 555 states have call successors, (556) [2022-07-21 12:53:04,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 2850 transitions. [2022-07-21 12:53:04,543 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 2850 transitions. Word has length 190 [2022-07-21 12:53:04,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:04,546 INFO L495 AbstractCegarLoop]: Abstraction has 1983 states and 2850 transitions. [2022-07-21 12:53:04,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 12:53:04,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 2850 transitions. [2022-07-21 12:53:04,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-21 12:53:04,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:04,562 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:04,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:04,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:04,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:04,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash 398062803, now seen corresponding path program 1 times [2022-07-21 12:53:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:04,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276821261] [2022-07-21 12:53:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:04,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:04,792 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) [2022-07-21 12:53:04,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 12:53:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:07,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 2337 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 12:53:07,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:07,692 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-07-21 12:53:07,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:53:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-21 12:53:08,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276821261] [2022-07-21 12:53:08,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276821261] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:53:08,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:53:08,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-07-21 12:53:08,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627718633] [2022-07-21 12:53:08,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:53:08,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 12:53:08,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:08,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 12:53:08,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:53:08,744 INFO L87 Difference]: Start difference. First operand 1983 states and 2850 transitions. Second operand has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-21 12:53:09,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:09,637 INFO L93 Difference]: Finished difference Result 3954 states and 5684 transitions. [2022-07-21 12:53:09,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 12:53:09,639 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 193 [2022-07-21 12:53:09,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:09,656 INFO L225 Difference]: With dead ends: 3954 [2022-07-21 12:53:09,657 INFO L226 Difference]: Without dead ends: 1986 [2022-07-21 12:53:09,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-21 12:53:09,669 INFO L413 NwaCegarLoop]: 2840 mSDtfsCounter, 13 mSDsluCounter, 17012 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 19852 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:09,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 19852 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 12:53:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2022-07-21 12:53:09,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1984. [2022-07-21 12:53:09,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1329 states have (on average 1.309255079006772) internal successors, (1740), 1368 states have internal predecessors, (1740), 556 states have call successors, (556), 98 states have call predecessors, (556), 98 states have return successors, (556), 544 states have call predecessors, (556), 555 states have call successors, (556) [2022-07-21 12:53:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2852 transitions. [2022-07-21 12:53:09,746 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2852 transitions. Word has length 193 [2022-07-21 12:53:09,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:09,747 INFO L495 AbstractCegarLoop]: Abstraction has 1984 states and 2852 transitions. [2022-07-21 12:53:09,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.333333333333334) internal successors, (84), 11 states have internal predecessors, (84), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-21 12:53:09,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2852 transitions. [2022-07-21 12:53:09,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-21 12:53:09,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:09,752 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:09,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-21 12:53:09,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:09,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:09,972 INFO L85 PathProgramCache]: Analyzing trace with hash 687295633, now seen corresponding path program 1 times [2022-07-21 12:53:09,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:09,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248150588] [2022-07-21 12:53:09,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:09,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:09,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:09,980 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) [2022-07-21 12:53:09,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 12:53:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:12,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 12:53:12,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-07-21 12:53:12,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:53:14,186 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-21 12:53:14,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:14,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248150588] [2022-07-21 12:53:14,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248150588] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:53:14,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:53:14,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-21 12:53:14,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459997236] [2022-07-21 12:53:14,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:53:14,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 12:53:14,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:14,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 12:53:14,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-21 12:53:14,190 INFO L87 Difference]: Start difference. First operand 1984 states and 2852 transitions. Second operand has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-21 12:53:15,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:15,192 INFO L93 Difference]: Finished difference Result 3958 states and 5690 transitions. [2022-07-21 12:53:15,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 12:53:15,194 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 202 [2022-07-21 12:53:15,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:15,213 INFO L225 Difference]: With dead ends: 3958 [2022-07-21 12:53:15,213 INFO L226 Difference]: Without dead ends: 1989 [2022-07-21 12:53:15,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-07-21 12:53:15,230 INFO L413 NwaCegarLoop]: 2841 mSDtfsCounter, 23 mSDsluCounter, 17023 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 19864 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:15,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 19864 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 12:53:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2022-07-21 12:53:15,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1985. [2022-07-21 12:53:15,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1330 states have (on average 1.3097744360902255) internal successors, (1742), 1369 states have internal predecessors, (1742), 556 states have call successors, (556), 98 states have call predecessors, (556), 98 states have return successors, (556), 544 states have call predecessors, (556), 555 states have call successors, (556) [2022-07-21 12:53:15,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 2854 transitions. [2022-07-21 12:53:15,310 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 2854 transitions. Word has length 202 [2022-07-21 12:53:15,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:15,311 INFO L495 AbstractCegarLoop]: Abstraction has 1985 states and 2854 transitions. [2022-07-21 12:53:15,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.454545454545455) internal successors, (93), 13 states have internal predecessors, (93), 4 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-21 12:53:15,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 2854 transitions. [2022-07-21 12:53:15,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-21 12:53:15,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:15,318 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:15,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:15,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:15,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:15,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:15,532 INFO L85 PathProgramCache]: Analyzing trace with hash -956355392, now seen corresponding path program 2 times [2022-07-21 12:53:15,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:15,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675350322] [2022-07-21 12:53:15,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 12:53:15,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:15,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:15,538 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) [2022-07-21 12:53:15,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 12:53:17,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 12:53:17,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 12:53:17,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1898 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:53:17,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-07-21 12:53:17,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:17,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:17,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675350322] [2022-07-21 12:53:17,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675350322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:17,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:17,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:53:17,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291995520] [2022-07-21 12:53:17,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:17,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:53:17,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:17,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:53:17,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:17,315 INFO L87 Difference]: Start difference. First operand 1985 states and 2854 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:18,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:18,149 INFO L93 Difference]: Finished difference Result 5624 states and 8076 transitions. [2022-07-21 12:53:18,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:53:18,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 205 [2022-07-21 12:53:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:18,182 INFO L225 Difference]: With dead ends: 5624 [2022-07-21 12:53:18,183 INFO L226 Difference]: Without dead ends: 3668 [2022-07-21 12:53:18,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:18,199 INFO L413 NwaCegarLoop]: 3561 mSDtfsCounter, 2461 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 6246 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:18,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 6246 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 12:53:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3668 states. [2022-07-21 12:53:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3668 to 3652. [2022-07-21 12:53:18,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2426 states have (on average 1.3017312448474856) internal successors, (3158), 2507 states have internal predecessors, (3158), 1041 states have call successors, (1041), 185 states have call predecessors, (1041), 184 states have return successors, (1043), 1012 states have call predecessors, (1043), 1040 states have call successors, (1043) [2022-07-21 12:53:18,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5242 transitions. [2022-07-21 12:53:18,360 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5242 transitions. Word has length 205 [2022-07-21 12:53:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:18,361 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5242 transitions. [2022-07-21 12:53:18,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5242 transitions. [2022-07-21 12:53:18,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-21 12:53:18,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:18,365 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:18,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:18,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:18,580 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:18,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:18,580 INFO L85 PathProgramCache]: Analyzing trace with hash -323456461, now seen corresponding path program 2 times [2022-07-21 12:53:18,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:18,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132475263] [2022-07-21 12:53:18,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 12:53:18,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:18,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:18,583 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) [2022-07-21 12:53:18,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 12:53:20,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 12:53:20,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 12:53:20,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:53:20,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:20,502 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-07-21 12:53:20,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:20,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:20,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132475263] [2022-07-21 12:53:20,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132475263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:20,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:20,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:53:20,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475083064] [2022-07-21 12:53:20,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:20,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:53:20,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:20,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:53:20,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:20,505 INFO L87 Difference]: Start difference. First operand 3652 states and 5242 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:20,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:20,915 INFO L93 Difference]: Finished difference Result 10872 states and 15652 transitions. [2022-07-21 12:53:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:53:20,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 199 [2022-07-21 12:53:20,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:20,974 INFO L225 Difference]: With dead ends: 10872 [2022-07-21 12:53:20,975 INFO L226 Difference]: Without dead ends: 7249 [2022-07-21 12:53:21,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:21,005 INFO L413 NwaCegarLoop]: 3390 mSDtfsCounter, 2814 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:21,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 6200 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 12:53:21,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7249 states. [2022-07-21 12:53:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7249 to 7241. [2022-07-21 12:53:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 4810 states have (on average 1.3014553014553014) internal successors, (6260), 4971 states have internal predecessors, (6260), 2066 states have call successors, (2066), 368 states have call predecessors, (2066), 364 states have return successors, (2084), 2007 states have call predecessors, (2084), 2065 states have call successors, (2084) [2022-07-21 12:53:21,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 10410 transitions. [2022-07-21 12:53:21,344 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 10410 transitions. Word has length 199 [2022-07-21 12:53:21,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:21,344 INFO L495 AbstractCegarLoop]: Abstraction has 7241 states and 10410 transitions. [2022-07-21 12:53:21,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 10410 transitions. [2022-07-21 12:53:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-21 12:53:21,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:21,349 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:21,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:21,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:21,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:21,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:21,564 INFO L85 PathProgramCache]: Analyzing trace with hash -626016518, now seen corresponding path program 1 times [2022-07-21 12:53:21,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:21,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605858924] [2022-07-21 12:53:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:21,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:21,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:21,567 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) [2022-07-21 12:53:21,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 12:53:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:24,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 12:53:24,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-07-21 12:53:24,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:53:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-07-21 12:53:26,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:26,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605858924] [2022-07-21 12:53:26,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605858924] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:53:26,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 12:53:26,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-07-21 12:53:26,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619253168] [2022-07-21 12:53:26,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 12:53:26,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 12:53:26,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:26,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 12:53:26,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-21 12:53:26,199 INFO L87 Difference]: Start difference. First operand 7241 states and 10410 transitions. Second operand has 15 states, 13 states have (on average 6.846153846153846) internal successors, (89), 15 states have internal predecessors, (89), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-21 12:53:27,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:27,703 INFO L93 Difference]: Finished difference Result 14510 states and 20856 transitions. [2022-07-21 12:53:27,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 12:53:27,704 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.846153846153846) internal successors, (89), 15 states have internal predecessors, (89), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 200 [2022-07-21 12:53:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:27,771 INFO L225 Difference]: With dead ends: 14510 [2022-07-21 12:53:27,771 INFO L226 Difference]: Without dead ends: 7284 [2022-07-21 12:53:27,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-07-21 12:53:27,812 INFO L413 NwaCegarLoop]: 2842 mSDtfsCounter, 32 mSDsluCounter, 22701 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25543 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:27,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 25543 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 12:53:27,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2022-07-21 12:53:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 7242. [2022-07-21 12:53:28,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 4811 states have (on average 1.3016004988567866) internal successors, (6262), 4972 states have internal predecessors, (6262), 2066 states have call successors, (2066), 368 states have call predecessors, (2066), 364 states have return successors, (2084), 2007 states have call predecessors, (2084), 2065 states have call successors, (2084) [2022-07-21 12:53:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 10412 transitions. [2022-07-21 12:53:28,248 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 10412 transitions. Word has length 200 [2022-07-21 12:53:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:28,249 INFO L495 AbstractCegarLoop]: Abstraction has 7242 states and 10412 transitions. [2022-07-21 12:53:28,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.846153846153846) internal successors, (89), 15 states have internal predecessors, (89), 4 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-21 12:53:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 10412 transitions. [2022-07-21 12:53:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-21 12:53:28,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:28,254 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:28,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:28,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:28,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:28,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:28,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1595007721, now seen corresponding path program 2 times [2022-07-21 12:53:28,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:28,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83363977] [2022-07-21 12:53:28,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 12:53:28,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:28,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:28,476 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) [2022-07-21 12:53:28,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 12:53:30,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 12:53:30,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 12:53:30,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:53:30,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-21 12:53:30,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:30,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:30,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83363977] [2022-07-21 12:53:30,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83363977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:30,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:30,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:53:30,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728367151] [2022-07-21 12:53:30,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:30,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:53:30,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:30,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:53:30,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:30,450 INFO L87 Difference]: Start difference. First operand 7242 states and 10412 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:31,004 INFO L93 Difference]: Finished difference Result 18061 states and 26008 transitions. [2022-07-21 12:53:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:53:31,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 203 [2022-07-21 12:53:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:31,110 INFO L225 Difference]: With dead ends: 18061 [2022-07-21 12:53:31,111 INFO L226 Difference]: Without dead ends: 10848 [2022-07-21 12:53:31,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:31,166 INFO L413 NwaCegarLoop]: 3386 mSDtfsCounter, 2824 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 6196 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:31,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 6196 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 12:53:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10848 states. [2022-07-21 12:53:31,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10848 to 10845. [2022-07-21 12:53:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10845 states, 7207 states have (on average 1.3008186485361455) internal successors, (9375), 7448 states have internal predecessors, (9375), 3091 states have call successors, (3091), 551 states have call predecessors, (3091), 546 states have return successors, (3127), 3004 states have call predecessors, (3127), 3090 states have call successors, (3127) [2022-07-21 12:53:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10845 states to 10845 states and 15593 transitions. [2022-07-21 12:53:31,798 INFO L78 Accepts]: Start accepts. Automaton has 10845 states and 15593 transitions. Word has length 203 [2022-07-21 12:53:31,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:31,799 INFO L495 AbstractCegarLoop]: Abstraction has 10845 states and 15593 transitions. [2022-07-21 12:53:31,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:31,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10845 states and 15593 transitions. [2022-07-21 12:53:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-21 12:53:31,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:31,803 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:31,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:32,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:32,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1334921819, now seen corresponding path program 1 times [2022-07-21 12:53:32,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:32,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721924014] [2022-07-21 12:53:32,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:32,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:32,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:32,029 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) [2022-07-21 12:53:32,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 12:53:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:35,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 2440 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:53:35,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:35,657 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-21 12:53:35,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:35,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:35,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721924014] [2022-07-21 12:53:35,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721924014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:35,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:35,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:53:35,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281455485] [2022-07-21 12:53:35,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:35,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:53:35,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:35,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:53:35,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:35,659 INFO L87 Difference]: Start difference. First operand 10845 states and 15593 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:36,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:36,319 INFO L93 Difference]: Finished difference Result 25265 states and 36376 transitions. [2022-07-21 12:53:36,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:53:36,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 204 [2022-07-21 12:53:36,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:36,415 INFO L225 Difference]: With dead ends: 25265 [2022-07-21 12:53:36,415 INFO L226 Difference]: Without dead ends: 14449 [2022-07-21 12:53:36,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:36,472 INFO L413 NwaCegarLoop]: 3386 mSDtfsCounter, 2825 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 6196 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:36,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 6196 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 12:53:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14449 states. [2022-07-21 12:53:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14449 to 14446. [2022-07-21 12:53:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14446 states, 9603 states have (on average 1.3003228157867333) internal successors, (12487), 9924 states have internal predecessors, (12487), 4114 states have call successors, (4114), 734 states have call predecessors, (4114), 728 states have return successors, (4168), 3999 states have call predecessors, (4168), 4113 states have call successors, (4168) [2022-07-21 12:53:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14446 states to 14446 states and 20769 transitions. [2022-07-21 12:53:37,270 INFO L78 Accepts]: Start accepts. Automaton has 14446 states and 20769 transitions. Word has length 204 [2022-07-21 12:53:37,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:37,271 INFO L495 AbstractCegarLoop]: Abstraction has 14446 states and 20769 transitions. [2022-07-21 12:53:37,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:37,272 INFO L276 IsEmpty]: Start isEmpty. Operand 14446 states and 20769 transitions. [2022-07-21 12:53:37,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-21 12:53:37,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:37,275 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:37,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:37,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:37,495 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash 185316992, now seen corresponding path program 1 times [2022-07-21 12:53:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:37,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992629899] [2022-07-21 12:53:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:37,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:37,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:37,501 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) [2022-07-21 12:53:37,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 12:53:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:41,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:53:41,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:41,314 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-21 12:53:41,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:41,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:41,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992629899] [2022-07-21 12:53:41,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992629899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:41,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:41,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:53:41,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941661090] [2022-07-21 12:53:41,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:41,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:53:41,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:41,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:53:41,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:41,316 INFO L87 Difference]: Start difference. First operand 14446 states and 20769 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:42,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:42,093 INFO L93 Difference]: Finished difference Result 32419 states and 46672 transitions. [2022-07-21 12:53:42,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:53:42,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 205 [2022-07-21 12:53:42,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:42,229 INFO L225 Difference]: With dead ends: 32419 [2022-07-21 12:53:42,229 INFO L226 Difference]: Without dead ends: 18002 [2022-07-21 12:53:42,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:42,317 INFO L413 NwaCegarLoop]: 3386 mSDtfsCounter, 2826 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2826 SdHoareTripleChecker+Valid, 6196 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:42,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2826 Valid, 6196 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:53:42,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18002 states. [2022-07-21 12:53:43,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18002 to 17999. [2022-07-21 12:53:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17999 states, 11971 states have (on average 1.3001420098571548) internal successors, (15564), 12372 states have internal predecessors, (15564), 5121 states have call successors, (5121), 913 states have call predecessors, (5121), 906 states have return successors, (5193), 4978 states have call predecessors, (5193), 5120 states have call successors, (5193) [2022-07-21 12:53:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17999 states to 17999 states and 25878 transitions. [2022-07-21 12:53:43,209 INFO L78 Accepts]: Start accepts. Automaton has 17999 states and 25878 transitions. Word has length 205 [2022-07-21 12:53:43,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:43,209 INFO L495 AbstractCegarLoop]: Abstraction has 17999 states and 25878 transitions. [2022-07-21 12:53:43,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:53:43,210 INFO L276 IsEmpty]: Start isEmpty. Operand 17999 states and 25878 transitions. [2022-07-21 12:53:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-21 12:53:43,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:43,213 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:43,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:43,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:43,427 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:43,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:43,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1477666494, now seen corresponding path program 1 times [2022-07-21 12:53:43,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:43,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134149108] [2022-07-21 12:53:43,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:43,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:43,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:43,432 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) [2022-07-21 12:53:43,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 12:53:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:46,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 2489 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:53:46,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-07-21 12:53:47,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:47,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:47,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134149108] [2022-07-21 12:53:47,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134149108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:47,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:47,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:53:47,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890940476] [2022-07-21 12:53:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:47,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:53:47,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:47,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:53:47,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:47,071 INFO L87 Difference]: Start difference. First operand 17999 states and 25878 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:53:48,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:48,242 INFO L93 Difference]: Finished difference Result 51171 states and 73711 transitions. [2022-07-21 12:53:48,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:53:48,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 219 [2022-07-21 12:53:48,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:48,443 INFO L225 Difference]: With dead ends: 51171 [2022-07-21 12:53:48,443 INFO L226 Difference]: Without dead ends: 33199 [2022-07-21 12:53:48,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:53:48,539 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 2470 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 6871 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:48,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 6871 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 12:53:48,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33199 states. [2022-07-21 12:53:50,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33199 to 33160. [2022-07-21 12:53:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33160 states, 21794 states have (on average 1.2955859410847022) internal successors, (28236), 22528 states have internal predecessors, (28236), 9718 states have call successors, (9718), 1657 states have call predecessors, (9718), 1647 states have return successors, (9851), 9464 states have call predecessors, (9851), 9717 states have call successors, (9851) [2022-07-21 12:53:50,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33160 states to 33160 states and 47805 transitions. [2022-07-21 12:53:50,643 INFO L78 Accepts]: Start accepts. Automaton has 33160 states and 47805 transitions. Word has length 219 [2022-07-21 12:53:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:53:50,644 INFO L495 AbstractCegarLoop]: Abstraction has 33160 states and 47805 transitions. [2022-07-21 12:53:50,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:53:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 33160 states and 47805 transitions. [2022-07-21 12:53:50,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-21 12:53:50,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:53:50,648 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:53:50,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 12:53:50,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:53:50,868 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:53:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:53:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash -549835752, now seen corresponding path program 1 times [2022-07-21 12:53:50,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:53:50,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109241116] [2022-07-21 12:53:50,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:53:50,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:53:50,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:53:50,873 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) [2022-07-21 12:53:50,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 12:53:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:53:54,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:53:54,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:53:56,376 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-21 12:53:56,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:53:56,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:53:56,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109241116] [2022-07-21 12:53:56,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109241116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:53:56,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:53:56,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:53:56,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723860585] [2022-07-21 12:53:56,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:53:56,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:53:56,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:53:56,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:53:56,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:53:56,380 INFO L87 Difference]: Start difference. First operand 33160 states and 47805 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:53:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:53:58,593 INFO L93 Difference]: Finished difference Result 99586 states and 143591 transitions. [2022-07-21 12:53:58,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:53:58,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 223 [2022-07-21 12:53:58,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:53:59,283 INFO L225 Difference]: With dead ends: 99586 [2022-07-21 12:53:59,283 INFO L226 Difference]: Without dead ends: 66463 [2022-07-21 12:53:59,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:53:59,463 INFO L413 NwaCegarLoop]: 3413 mSDtfsCounter, 2784 mSDsluCounter, 9617 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2788 SdHoareTripleChecker+Valid, 13030 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:53:59,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2788 Valid, 13030 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 12:53:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66463 states. [2022-07-21 12:54:01,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66463 to 66356. [2022-07-21 12:54:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66356 states, 43587 states have (on average 1.2944226489549637) internal successors, (56420), 45167 states have internal predecessors, (56420), 19424 states have call successors, (19424), 3331 states have call predecessors, (19424), 3344 states have return successors, (19787), 18837 states have call predecessors, (19787), 19423 states have call successors, (19787) [2022-07-21 12:54:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66356 states to 66356 states and 95631 transitions. [2022-07-21 12:54:02,850 INFO L78 Accepts]: Start accepts. Automaton has 66356 states and 95631 transitions. Word has length 223 [2022-07-21 12:54:02,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:54:02,851 INFO L495 AbstractCegarLoop]: Abstraction has 66356 states and 95631 transitions. [2022-07-21 12:54:02,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:54:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 66356 states and 95631 transitions. [2022-07-21 12:54:02,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-21 12:54:02,856 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:54:02,856 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:54:02,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 12:54:03,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:54:03,075 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:54:03,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:54:03,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1294134928, now seen corresponding path program 1 times [2022-07-21 12:54:03,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:54:03,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181739612] [2022-07-21 12:54:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:54:03,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:54:03,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:54:03,079 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) [2022-07-21 12:54:03,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 12:54:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:54:06,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2416 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:54:06,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:54:08,141 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-21 12:54:08,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:54:08,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:54:08,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181739612] [2022-07-21 12:54:08,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181739612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:54:08,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:54:08,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:54:08,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345895952] [2022-07-21 12:54:08,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:54:08,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:54:08,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:54:08,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:54:08,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:54:08,144 INFO L87 Difference]: Start difference. First operand 66356 states and 95631 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:54:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:54:12,777 INFO L93 Difference]: Finished difference Result 199222 states and 287047 transitions. [2022-07-21 12:54:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:54:12,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 224 [2022-07-21 12:54:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:54:14,058 INFO L225 Difference]: With dead ends: 199222 [2022-07-21 12:54:14,058 INFO L226 Difference]: Without dead ends: 132903 [2022-07-21 12:54:14,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:54:14,419 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 2783 mSDsluCounter, 9563 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 12950 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:54:14,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2787 Valid, 12950 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:54:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132903 states. [2022-07-21 12:54:18,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132903 to 132732. [2022-07-21 12:54:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132732 states, 87209 states have (on average 1.2937196848949077) internal successors, (112824), 90349 states have internal predecessors, (112824), 38816 states have call successors, (38816), 6679 states have call predecessors, (38816), 6706 states have return successors, (39479), 37663 states have call predecessors, (39479), 38815 states have call successors, (39479) [2022-07-21 12:54:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132732 states to 132732 states and 191119 transitions. [2022-07-21 12:54:20,515 INFO L78 Accepts]: Start accepts. Automaton has 132732 states and 191119 transitions. Word has length 224 [2022-07-21 12:54:20,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:54:20,515 INFO L495 AbstractCegarLoop]: Abstraction has 132732 states and 191119 transitions. [2022-07-21 12:54:20,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:54:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 132732 states and 191119 transitions. [2022-07-21 12:54:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-21 12:54:20,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:54:20,520 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:54:20,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 12:54:20,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 12:54:20,721 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:54:20,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:54:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1450409627, now seen corresponding path program 1 times [2022-07-21 12:54:20,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 12:54:20,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215326227] [2022-07-21 12:54:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:54:20,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 12:54:20,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 12:54:20,725 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) [2022-07-21 12:54:20,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 12:54:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:54:24,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 12:54:24,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:54:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-07-21 12:54:26,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:54:26,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 12:54:26,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215326227] [2022-07-21 12:54:26,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215326227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:54:26,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:54:26,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:54:26,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014691475] [2022-07-21 12:54:26,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:54:26,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:54:26,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 12:54:26,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:54:26,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:54:26,022 INFO L87 Difference]: Start difference. First operand 132732 states and 191119 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:54:36,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:54:36,814 INFO L93 Difference]: Finished difference Result 398608 states and 573803 transitions. [2022-07-21 12:54:36,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:54:36,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-07-21 12:54:36,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:54:40,099 INFO L225 Difference]: With dead ends: 398608 [2022-07-21 12:54:40,100 INFO L226 Difference]: Without dead ends: 265913 [2022-07-21 12:54:41,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:54:41,254 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 2784 mSDsluCounter, 9563 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2788 SdHoareTripleChecker+Valid, 12950 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 12:54:41,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2788 Valid, 12950 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 12:54:41,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265913 states. [2022-07-21 12:54:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265913 to 265574. [2022-07-21 12:54:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265574 states, 174543 states have (on average 1.2931598517270815) internal successors, (225712), 180783 states have internal predecessors, (225712), 77580 states have call successors, (77580), 13395 states have call predecessors, (77580), 13450 states have return successors, (78779), 75315 states have call predecessors, (78779), 77579 states have call successors, (78779)