./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.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 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:49:48,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:49:48,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:49:48,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:49:48,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:49:48,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:49:48,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:49:48,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:49:48,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:49:48,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:49:48,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:49:48,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:49:48,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:49:48,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:49:48,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:49:48,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:49:48,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:49:48,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:49:48,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:49:48,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:49:48,789 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:49:48,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:49:48,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:49:48,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:49:48,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:49:48,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:49:48,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:49:48,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:49:48,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:49:48,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:49:48,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:49:48,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:49:48,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:49:48,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:49:48,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:49:48,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:49:48,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:49:48,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:49:48,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:49:48,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:49:48,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:49:48,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:49:48,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:49:48,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:49:48,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:49:48,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:49:48,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:49:48,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:49:48,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:49:48,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:49:48,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:49:48,832 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:49:48,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:49:48,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:49:48,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:49:48,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:49:48,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:49:48,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:49:48,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:49:48,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:49:48,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:49:48,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:49:48,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:49:48,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:49:48,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:49:48,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:49:48,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:49:48,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:49:48,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:49:48,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:49:48,836 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:49:48,836 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:49:48,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:49:48,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 [2022-07-22 23:49:49,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:49:49,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:49:49,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:49:49,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:49:49,024 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:49:49,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-22 23:49:49,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece045ad8/a4e2bafc12cc44bda5fc48729e0abd26/FLAG172065ac9 [2022-07-22 23:49:49,728 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:49:49,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-22 23:49:49,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece045ad8/a4e2bafc12cc44bda5fc48729e0abd26/FLAG172065ac9 [2022-07-22 23:49:50,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece045ad8/a4e2bafc12cc44bda5fc48729e0abd26 [2022-07-22 23:49:50,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:49:50,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:49:50,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:49:50,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:49:50,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:49:50,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:49:50" (1/1) ... [2022-07-22 23:49:50,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efa392a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:50, skipping insertion in model container [2022-07-22 23:49:50,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:49:50" (1/1) ... [2022-07-22 23:49:50,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:49:50,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:49:50,794 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-22 23:49:52,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:49:52,583 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:49:52,682 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-22 23:49:52,689 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: mii_reg = (unsigned int )mii_reg & 63487U [6591] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-22 23:49:52,697 INFO L158 Benchmark]: Toolchain (without parser) took 2578.81ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 97.9MB in the beginning and 97.0MB in the end (delta: 920.6kB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2022-07-22 23:49:52,697 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 93.5MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 23:49:52,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2577.56ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 97.9MB in the beginning and 97.0MB in the end (delta: 920.6kB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2022-07-22 23:49:52,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 93.5MB in the end (delta: 79.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2577.56ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 97.9MB in the beginning and 97.0MB in the end (delta: 920.6kB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: mii_reg = (unsigned int )mii_reg & 63487U [6591] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: mii_reg = (unsigned int )mii_reg & 63487U [6591]: 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.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 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:49:54,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:49:54,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:49:54,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:49:54,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:49:54,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:49:54,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:49:54,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:49:54,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:49:54,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:49:54,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:49:54,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:49:54,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:49:54,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:49:54,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:49:54,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:49:54,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:49:54,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:49:54,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:49:54,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:49:54,293 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:49:54,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:49:54,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:49:54,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:49:54,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:49:54,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:49:54,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:49:54,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:49:54,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:49:54,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:49:54,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:49:54,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:49:54,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:49:54,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:49:54,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:49:54,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:49:54,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:49:54,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:49:54,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:49:54,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:49:54,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:49:54,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:49:54,317 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 23:49:54,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:49:54,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:49:54,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:49:54,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:49:54,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:49:54,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:49:54,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:49:54,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:49:54,344 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:49:54,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:49:54,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:49:54,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:49:54,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:49:54,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:49:54,345 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 23:49:54,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 23:49:54,352 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 23:49:54,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:49:54,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:49:54,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:49:54,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:49:54,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:49:54,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:49:54,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:49:54,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:49:54,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:49:54,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:49:54,354 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 23:49:54,354 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 23:49:54,354 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:49:54,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:49:54,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:49:54,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 23:49:54,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d0df1181ffc4c53f45cd03069b14e0b0a1098ff4e46600d385a44951d78aaf4 [2022-07-22 23:49:54,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:49:54,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:49:54,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:49:54,608 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:49:54,608 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:49:54,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-22 23:49:54,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c63895eb5/30a39467999e42f299fd267e54f04513/FLAG3056c8300 [2022-07-22 23:49:55,374 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:49:55,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-22 23:49:55,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c63895eb5/30a39467999e42f299fd267e54f04513/FLAG3056c8300 [2022-07-22 23:49:55,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c63895eb5/30a39467999e42f299fd267e54f04513 [2022-07-22 23:49:55,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:49:55,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:49:55,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:49:55,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:49:55,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:49:55,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:49:55" (1/1) ... [2022-07-22 23:49:55,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c57245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:55, skipping insertion in model container [2022-07-22 23:49:55,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:49:55" (1/1) ... [2022-07-22 23:49:55,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:49:56,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:49:56,562 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-22 23:49:58,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:49:58,095 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-22 23:49:58,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:49:58,235 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-22 23:49:58,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:49:58,465 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:49:58,578 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i[183405,183418] [2022-07-22 23:49:58,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:49:59,073 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:49:59,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59 WrapperNode [2022-07-22 23:49:59,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:49:59,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:49:59,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:49:59,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:49:59,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,452 INFO L137 Inliner]: procedures = 495, calls = 5164, calls flagged for inlining = 241, calls inlined = 216, statements flattened = 8860 [2022-07-22 23:49:59,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:49:59,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:49:59,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:49:59,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:49:59,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:49:59,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:49:59,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:49:59,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:49:59,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (1/1) ... [2022-07-22 23:49:59,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:49:59,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:49:59,813 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) [2022-07-22 23:49:59,820 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 [2022-07-22 23:49:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-22 23:49:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-22 23:49:59,847 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_disable [2022-07-22 23:49:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_disable [2022-07-22 23:49:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_intr [2022-07-22 23:49:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_intr [2022-07-22 23:49:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-22 23:49:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-22 23:49:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:49:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:49:59,848 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_minnow_platform_init [2022-07-22 23:49:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_minnow_platform_init [2022-07-22 23:49:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_open [2022-07-22 23:49:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_open [2022-07-22 23:49:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:49:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:49:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-22 23:49:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-22 23:49:59,849 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-22 23:49:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-22 23:49:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reinit_locked [2022-07-22 23:49:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reinit_locked [2022-07-22 23:49:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_up_phy [2022-07-22 23:49:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_up_phy [2022-07-22 23:49:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_tx_resources [2022-07-22 23:49:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_tx_resources [2022-07-22 23:49:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-22 23:49:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-22 23:49:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-22 23:49:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-22 23:49:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-22 23:49:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-22 23:49:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_netpoll [2022-07-22 23:49:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_netpoll [2022-07-22 23:49:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_init_hw [2022-07-22 23:49:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_init_hw [2022-07-22 23:49:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_rx_resources [2022-07-22 23:49:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_rx_resources [2022-07-22 23:49:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_tx_resources [2022-07-22 23:49:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_tx_resources [2022-07-22 23:49:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-22 23:49:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-22 23:49:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-22 23:49:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-22 23:49:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_error_detected [2022-07-22 23:49:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_error_detected [2022-07-22 23:49:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:49:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:49:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-07-22 23:49:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-07-22 23:49:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure pch_set_station_address [2022-07-22 23:49:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_set_station_address [2022-07-22 23:49:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-22 23:49:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-22 23:49:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_write [2022-07-22 23:49:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_write [2022-07-22 23:49:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-22 23:49:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-22 23:49:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-22 23:49:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-22 23:49:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-22 23:49:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-22 23:49:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-22 23:49:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-22 23:49:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-22 23:49:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:49:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:49:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-22 23:49:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-22 23:49:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:49:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_up [2022-07-22 23:49:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_up [2022-07-22 23:49:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 23:49:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-22 23:49:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-22 23:49:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-22 23:49:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-22 23:49:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-22 23:49:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-22 23:49:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_resume [2022-07-22 23:49:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_resume [2022-07-22 23:49:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-22 23:49:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-22 23:49:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_write [2022-07-22 23:49:59,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_write [2022-07-22 23:49:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-22 23:49:59,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-22 23:49:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-22 23:49:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-22 23:49:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-22 23:49:59,864 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-22 23:49:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-22 23:49:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-22 23:49:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_enable_dma_rx [2022-07-22 23:49:59,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_enable_dma_rx [2022-07-22 23:49:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_configure_rx [2022-07-22 23:49:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_configure_rx [2022-07-22 23:49:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_wait_clr_bit [2022-07-22 23:49:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_wait_clr_bit [2022-07-22 23:49:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2022-07-22 23:49:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2022-07-22 23:49:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-22 23:49:59,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-22 23:49:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-07-22 23:49:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-07-22 23:49:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-22 23:49:59,867 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-22 23:49:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_remove [2022-07-22 23:49:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_remove [2022-07-22 23:49:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-22 23:49:59,868 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-22 23:49:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-22 23:49:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-22 23:49:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_force_mac_fc [2022-07-22 23:49:59,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_force_mac_fc [2022-07-22 23:49:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_suspend [2022-07-22 23:49:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_suspend [2022-07-22 23:49:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-22 23:49:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-22 23:49:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-22 23:49:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-22 23:49:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-22 23:49:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-22 23:49:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2022-07-22 23:49:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2022-07-22 23:49:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-22 23:49:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:49:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-22 23:49:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-22 23:49:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:49:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-22 23:49:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-22 23:49:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:49:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:49:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:49:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-22 23:49:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-22 23:49:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:49:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:49:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-22 23:49:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-22 23:49:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-22 23:49:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-22 23:49:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-22 23:49:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_change_mtu [2022-07-22 23:49:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_change_mtu [2022-07-22 23:49:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-22 23:49:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-22 23:49:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mac [2022-07-22 23:49:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mac [2022-07-22 23:49:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_set_wol_event [2022-07-22 23:49:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_set_wol_event [2022-07-22 23:49:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-22 23:49:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-22 23:49:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_ctrl_miim [2022-07-22 23:49:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_ctrl_miim [2022-07-22 23:49:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_regs_len [2022-07-22 23:49:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_regs_len [2022-07-22 23:49:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-22 23:49:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-22 23:49:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-22 23:49:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-07-22 23:49:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-07-22 23:49:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_features [2022-07-22 23:49:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_features [2022-07-22 23:49:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:49:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:49:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_alloc_rx_buffers [2022-07-22 23:49:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_alloc_rx_buffers [2022-07-22 23:49:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure __pch_gbe_suspend [2022-07-22 23:49:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __pch_gbe_suspend [2022-07-22 23:49:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-22 23:49:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-22 23:49:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-22 23:49:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_plat_get_bus_info [2022-07-22 23:49:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_plat_get_bus_info [2022-07-22 23:49:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-22 23:49:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-22 23:49:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-22 23:49:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_power_down [2022-07-22 23:49:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_power_down [2022-07-22 23:49:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 23:49:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:49:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-22 23:49:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:49:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:49:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:49:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-07-22 23:49:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-07-22 23:49:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_update_stats [2022-07-22 23:49:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_update_stats [2022-07-22 23:49:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-22 23:49:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-22 23:49:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:49:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:49:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-07-22 23:49:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-07-22 23:49:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum [2022-07-22 23:49:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum [2022-07-22 23:49:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mdio_read [2022-07-22 23:49:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mdio_read [2022-07-22 23:49:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_rx_ring [2022-07-22 23:49:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_rx_ring [2022-07-22 23:49:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-22 23:49:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-22 23:49:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_up [2022-07-22 23:49:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_up [2022-07-22 23:49:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 23:49:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 23:49:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:49:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:49:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-22 23:49:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-22 23:49:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-07-22 23:49:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-07-22 23:49:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-22 23:49:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-22 23:49:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_clean_tx_ring [2022-07-22 23:49:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_clean_tx_ring [2022-07-22 23:49:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_reset [2022-07-22 23:49:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_reset [2022-07-22 23:49:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-22 23:49:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-22 23:49:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-07-22 23:49:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-07-22 23:49:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_stop [2022-07-22 23:49:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_stop [2022-07-22 23:49:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:49:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2022-07-22 23:49:59,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2022-07-22 23:49:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-22 23:49:59,894 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-22 23:49:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-22 23:49:59,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-22 23:49:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-22 23:49:59,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-22 23:49:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:49:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-22 23:49:59,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-22 23:49:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_resume [2022-07-22 23:49:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_resume [2022-07-22 23:49:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-07-22 23:49:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-07-22 23:49:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-22 23:49:59,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-22 23:49:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-22 23:49:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 23:49:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_event_read [2022-07-22 23:49:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_event_read [2022-07-22 23:49:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:49:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-22 23:49:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-22 23:49:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_nway_reset [2022-07-22 23:49:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_nway_reset [2022-07-22 23:49:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-22 23:49:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-22 23:49:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-22 23:49:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-22 23:49:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_irq_enable [2022-07-22 23:49:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_irq_enable [2022-07-22 23:49:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:49:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:49:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-22 23:49:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-22 23:49:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_hw_reset [2022-07-22 23:49:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_hw_reset [2022-07-22 23:49:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_tx_timeout [2022-07-22 23:49:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_tx_timeout [2022-07-22 23:49:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2022-07-22 23:49:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2022-07-22 23:49:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:49:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:49:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2022-07-22 23:49:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2022-07-22 23:49:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_power_down_phy [2022-07-22 23:49:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_power_down_phy [2022-07-22 23:49:59,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-22 23:49:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-22 23:49:59,905 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_mode [2022-07-22 23:49:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_mode [2022-07-22 23:49:59,905 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-22 23:49:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-22 23:49:59,905 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rx_resources [2022-07-22 23:49:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rx_resources [2022-07-22 23:49:59,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-22 23:49:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-22 23:49:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-22 23:49:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-22 23:49:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-07-22 23:49:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-07-22 23:49:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:49:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:49:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_validate_option [2022-07-22 23:49:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_validate_option [2022-07-22 23:49:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_reset_hw [2022-07-22 23:49:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_reset_hw [2022-07-22 23:49:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure udp_hdr [2022-07-22 23:49:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure udp_hdr [2022-07-22 23:49:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_setup_rctl [2022-07-22 23:49:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_setup_rctl [2022-07-22 23:49:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-22 23:49:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_sw_reset [2022-07-22 23:49:59,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_sw_reset [2022-07-22 23:49:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-22 23:49:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-22 23:49:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-22 23:49:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:49:59,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:49:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_74 [2022-07-22 23:49:59,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_74 [2022-07-22 23:49:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_ioctl [2022-07-22 23:49:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_ioctl [2022-07-22 23:49:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_hal_phy_hw_reset [2022-07-22 23:49:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_hal_phy_hw_reset [2022-07-22 23:49:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_write_reg_miic [2022-07-22 23:49:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_write_reg_miic [2022-07-22 23:49:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-22 23:49:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-22 23:49:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-22 23:49:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-22 23:49:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure pch_ch_control_write [2022-07-22 23:49:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_ch_control_write [2022-07-22 23:49:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_multi [2022-07-22 23:49:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_multi [2022-07-22 23:49:59,910 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_shutdown [2022-07-22 23:49:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_shutdown [2022-07-22 23:49:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-22 23:49:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-22 23:49:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-22 23:49:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-22 23:49:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-22 23:49:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-22 23:49:59,911 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_phy_read_reg_miic [2022-07-22 23:49:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_phy_read_reg_miic [2022-07-22 23:49:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_read_mac_addr [2022-07-22 23:49:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_read_mac_addr [2022-07-22 23:49:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_set_rgmii_ctrl [2022-07-22 23:49:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_set_rgmii_ctrl [2022-07-22 23:49:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-07-22 23:49:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-07-22 23:49:59,912 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_get_stats [2022-07-22 23:49:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_get_stats [2022-07-22 23:49:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_down [2022-07-22 23:49:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_down [2022-07-22 23:49:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_free_irq [2022-07-22 23:49:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_free_irq [2022-07-22 23:49:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_mac_mar_set [2022-07-22 23:49:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_mac_mar_set [2022-07-22 23:49:59,913 INFO L130 BoogieDeclarations]: Found specification of procedure pch_gbe_io_slot_reset [2022-07-22 23:49:59,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_gbe_io_slot_reset [2022-07-22 23:50:01,068 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:50:01,071 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:50:02,392 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:51:49,147 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:51:49,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:51:49,165 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-22 23:51:49,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:51:49 BoogieIcfgContainer [2022-07-22 23:51:49,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:51:49,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:51:49,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:51:49,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:51:49,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:49:55" (1/3) ... [2022-07-22 23:51:49,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50817d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:51:49, skipping insertion in model container [2022-07-22 23:51:49,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:49:59" (2/3) ... [2022-07-22 23:51:49,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50817d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:51:49, skipping insertion in model container [2022-07-22 23:51:49,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:51:49" (3/3) ... [2022-07-22 23:51:49,182 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--oki-semi--pch_gbe--pch_gbe.ko-entry_point.cil.out.i [2022-07-22 23:51:49,193 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:51:49,194 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:51:49,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:51:49,281 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@1a95a04d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c8884d2 [2022-07-22 23:51:49,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:51:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 2973 states, 2076 states have (on average 1.3381502890173411) internal successors, (2778), 2135 states have internal predecessors, (2778), 738 states have call successors, (738), 159 states have call predecessors, (738), 158 states have return successors, (726), 707 states have call predecessors, (726), 726 states have call successors, (726) [2022-07-22 23:51:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 23:51:49,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:49,316 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:51:49,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:49,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:49,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1791158106, now seen corresponding path program 1 times [2022-07-22 23:51:49,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:51:49,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372269829] [2022-07-22 23:51:49,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:51:49,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:51:49,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:51:49,356 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) [2022-07-22 23:51:49,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 23:51:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:52,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 3521 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:51:52,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:51:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 23:51:52,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:51:52,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:51:52,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372269829] [2022-07-22 23:51:52,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372269829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:51:52,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:51:52,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:51:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154536671] [2022-07-22 23:51:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:51:52,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:51:52,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:51:52,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:51:52,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:51:52,752 INFO L87 Difference]: Start difference. First operand has 2973 states, 2076 states have (on average 1.3381502890173411) internal successors, (2778), 2135 states have internal predecessors, (2778), 738 states have call successors, (738), 159 states have call predecessors, (738), 158 states have return successors, (726), 707 states have call predecessors, (726), 726 states have call successors, (726) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:51:53,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:51:53,359 INFO L93 Difference]: Finished difference Result 5941 states and 8622 transitions. [2022-07-22 23:51:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:51:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2022-07-22 23:51:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:51:53,390 INFO L225 Difference]: With dead ends: 5941 [2022-07-22 23:51:53,390 INFO L226 Difference]: Without dead ends: 2946 [2022-07-22 23:51:53,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:51:53,411 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 2 mSDsluCounter, 8429 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12648 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:51:53,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12648 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:51:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2022-07-22 23:51:53,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2022-07-22 23:51:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2062 states have (on average 1.3258971871968963) internal successors, (2734), 2107 states have internal predecessors, (2734), 725 states have call successors, (725), 158 states have call predecessors, (725), 158 states have return successors, (728), 705 states have call predecessors, (728), 724 states have call successors, (728) [2022-07-22 23:51:53,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4187 transitions. [2022-07-22 23:51:53,593 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4187 transitions. Word has length 67 [2022-07-22 23:51:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:51:53,594 INFO L495 AbstractCegarLoop]: Abstraction has 2946 states and 4187 transitions. [2022-07-22 23:51:53,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:51:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4187 transitions. [2022-07-22 23:51:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 23:51:53,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:53,600 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:51:53,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 23:51:53,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:51:53,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:53,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:53,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1276349690, now seen corresponding path program 1 times [2022-07-22 23:51:53,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:51:53,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807390455] [2022-07-22 23:51:53,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:51:53,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:51:53,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:51:53,827 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) [2022-07-22 23:51:53,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 23:51:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:51:57,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 3543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:51:57,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:51:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-22 23:51:57,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:51:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-22 23:51:57,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:51:57,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807390455] [2022-07-22 23:51:57,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807390455] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:51:57,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:51:57,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 23:51:57,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394580916] [2022-07-22 23:51:57,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:51:57,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:51:57,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:51:57,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:51:57,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:51:57,893 INFO L87 Difference]: Start difference. First operand 2946 states and 4187 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 23:51:59,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:51:59,604 INFO L93 Difference]: Finished difference Result 5888 states and 8381 transitions. [2022-07-22 23:51:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 23:51:59,606 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2022-07-22 23:51:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:51:59,622 INFO L225 Difference]: With dead ends: 5888 [2022-07-22 23:51:59,622 INFO L226 Difference]: Without dead ends: 2957 [2022-07-22 23:51:59,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-22 23:51:59,636 INFO L413 NwaCegarLoop]: 4173 mSDtfsCounter, 12 mSDsluCounter, 16663 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 20836 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:51:59,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 20836 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 23:51:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-07-22 23:51:59,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2955. [2022-07-22 23:51:59,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2070 states have (on average 1.327536231884058) internal successors, (2748), 2115 states have internal predecessors, (2748), 725 states have call successors, (725), 159 states have call predecessors, (725), 159 states have return successors, (732), 705 states have call predecessors, (732), 724 states have call successors, (732) [2022-07-22 23:51:59,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 4205 transitions. [2022-07-22 23:51:59,709 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 4205 transitions. Word has length 69 [2022-07-22 23:51:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:51:59,710 INFO L495 AbstractCegarLoop]: Abstraction has 2955 states and 4205 transitions. [2022-07-22 23:51:59,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 23:51:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 4205 transitions. [2022-07-22 23:51:59,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 23:51:59,712 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:51:59,712 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:51:59,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-22 23:51:59,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:51:59,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:51:59,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:51:59,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1246096550, now seen corresponding path program 2 times [2022-07-22 23:51:59,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:51:59,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075681802] [2022-07-22 23:51:59,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 23:51:59,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:51:59,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:51:59,933 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) [2022-07-22 23:51:59,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 23:52:02,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 23:52:02,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 23:52:03,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 3426 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:52:03,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-07-22 23:52:03,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:03,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:03,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075681802] [2022-07-22 23:52:03,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075681802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:03,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:03,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:52:03,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032713382] [2022-07-22 23:52:03,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:03,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:52:03,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:03,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:52:03,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:52:03,943 INFO L87 Difference]: Start difference. First operand 2955 states and 4205 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:52:04,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:04,967 INFO L93 Difference]: Finished difference Result 8824 states and 12677 transitions. [2022-07-22 23:52:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:52:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-07-22 23:52:04,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:05,012 INFO L225 Difference]: With dead ends: 8824 [2022-07-22 23:52:05,012 INFO L226 Difference]: Without dead ends: 5883 [2022-07-22 23:52:05,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:52:05,032 INFO L413 NwaCegarLoop]: 4974 mSDtfsCounter, 4145 mSDsluCounter, 14150 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4145 SdHoareTripleChecker+Valid, 19124 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:05,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4145 Valid, 19124 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 23:52:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2022-07-22 23:52:05,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5877. [2022-07-22 23:52:05,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 4117 states have (on average 1.3283944619868837) internal successors, (5469), 4206 states have internal predecessors, (5469), 1442 states have call successors, (1442), 317 states have call predecessors, (1442), 317 states have return successors, (1512), 1403 states have call predecessors, (1512), 1441 states have call successors, (1512) [2022-07-22 23:52:05,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 8423 transitions. [2022-07-22 23:52:05,245 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 8423 transitions. Word has length 73 [2022-07-22 23:52:05,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:05,246 INFO L495 AbstractCegarLoop]: Abstraction has 5877 states and 8423 transitions. [2022-07-22 23:52:05,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:52:05,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 8423 transitions. [2022-07-22 23:52:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2022-07-22 23:52:05,279 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:05,280 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 11, 11, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:05,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:05,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:05,496 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1430131954, now seen corresponding path program 1 times [2022-07-22 23:52:05,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:05,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101754825] [2022-07-22 23:52:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:05,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:05,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:05,520 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) [2022-07-22 23:52:05,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 23:52:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:10,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 6683 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:52:11,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 70 proven. 10 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2022-07-22 23:52:11,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:52:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2022-07-22 23:52:13,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:13,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101754825] [2022-07-22 23:52:13,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101754825] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:52:13,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:52:13,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-07-22 23:52:13,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388509363] [2022-07-22 23:52:13,890 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:52:13,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 23:52:13,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:13,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 23:52:13,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:52:13,899 INFO L87 Difference]: Start difference. First operand 5877 states and 8423 transitions. Second operand has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) [2022-07-22 23:52:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:20,161 INFO L93 Difference]: Finished difference Result 11785 states and 16930 transitions. [2022-07-22 23:52:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 23:52:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) Word has length 730 [2022-07-22 23:52:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:20,205 INFO L225 Difference]: With dead ends: 11785 [2022-07-22 23:52:20,206 INFO L226 Difference]: Without dead ends: 5921 [2022-07-22 23:52:20,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1446 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-07-22 23:52:20,234 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 46 mSDsluCounter, 20849 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 25025 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:20,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 25025 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-22 23:52:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-07-22 23:52:20,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5893. [2022-07-22 23:52:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5893 states, 4131 states have (on average 1.3294601791333818) internal successors, (5492), 4221 states have internal predecessors, (5492), 1442 states have call successors, (1442), 318 states have call predecessors, (1442), 319 states have return successors, (1509), 1403 states have call predecessors, (1509), 1441 states have call successors, (1509) [2022-07-22 23:52:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8443 transitions. [2022-07-22 23:52:20,474 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8443 transitions. Word has length 730 [2022-07-22 23:52:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:20,476 INFO L495 AbstractCegarLoop]: Abstraction has 5893 states and 8443 transitions. [2022-07-22 23:52:20,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 47.214285714285715) internal successors, (661), 14 states have internal predecessors, (661), 2 states have call successors, (209), 2 states have call predecessors, (209), 4 states have return successors, (209), 2 states have call predecessors, (209), 2 states have call successors, (209) [2022-07-22 23:52:20,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8443 transitions. [2022-07-22 23:52:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2022-07-22 23:52:20,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:20,509 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 20, 20, 12, 12, 12, 10, 10, 10, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:20,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:20,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:20,728 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:20,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1482013768, now seen corresponding path program 1 times [2022-07-22 23:52:20,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:20,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420737295] [2022-07-22 23:52:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:20,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:20,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:20,735 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) [2022-07-22 23:52:20,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 23:52:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:26,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 6814 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 23:52:26,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2013 backedges. 241 proven. 3 refuted. 0 times theorem prover too weak. 1769 trivial. 0 not checked. [2022-07-22 23:52:26,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:52:28,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2013 backedges. 29 proven. 23 refuted. 0 times theorem prover too weak. 1961 trivial. 0 not checked. [2022-07-22 23:52:28,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:28,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420737295] [2022-07-22 23:52:28,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420737295] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:52:28,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:52:28,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-07-22 23:52:28,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173583072] [2022-07-22 23:52:28,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:52:28,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 23:52:28,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:28,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 23:52:28,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:52:28,395 INFO L87 Difference]: Start difference. First operand 5893 states and 8443 transitions. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) [2022-07-22 23:52:30,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:30,321 INFO L93 Difference]: Finished difference Result 11797 states and 16917 transitions. [2022-07-22 23:52:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 23:52:30,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) Word has length 828 [2022-07-22 23:52:30,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:30,348 INFO L225 Difference]: With dead ends: 11797 [2022-07-22 23:52:30,348 INFO L226 Difference]: Without dead ends: 5923 [2022-07-22 23:52:30,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1660 GetRequests, 1646 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-07-22 23:52:30,367 INFO L413 NwaCegarLoop]: 4174 mSDtfsCounter, 42 mSDsluCounter, 12507 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 16681 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:30,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 16681 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 23:52:30,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2022-07-22 23:52:30,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5893. [2022-07-22 23:52:30,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5893 states, 4132 states have (on average 1.3284123910939012) internal successors, (5489), 4220 states have internal predecessors, (5489), 1442 states have call successors, (1442), 319 states have call predecessors, (1442), 318 states have return successors, (1500), 1403 states have call predecessors, (1500), 1441 states have call successors, (1500) [2022-07-22 23:52:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8431 transitions. [2022-07-22 23:52:30,505 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8431 transitions. Word has length 828 [2022-07-22 23:52:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:30,506 INFO L495 AbstractCegarLoop]: Abstraction has 5893 states and 8431 transitions. [2022-07-22 23:52:30,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 2 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (218), 2 states have call predecessors, (218), 2 states have call successors, (218) [2022-07-22 23:52:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8431 transitions. [2022-07-22 23:52:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2022-07-22 23:52:30,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:30,526 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 20, 20, 12, 12, 12, 12, 10, 10, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:30,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:30,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:30,751 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash 212023624, now seen corresponding path program 2 times [2022-07-22 23:52:30,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:30,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552143562] [2022-07-22 23:52:30,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 23:52:30,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:30,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:30,759 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) [2022-07-22 23:52:30,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 23:52:33,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 23:52:33,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 23:52:34,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 3481 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 23:52:34,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-07-22 23:52:34,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:34,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:34,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552143562] [2022-07-22 23:52:34,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552143562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:34,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:34,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:52:34,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824609623] [2022-07-22 23:52:34,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:34,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:52:34,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:34,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:52:34,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:52:34,492 INFO L87 Difference]: Start difference. First operand 5893 states and 8431 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) [2022-07-22 23:52:35,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:35,014 INFO L93 Difference]: Finished difference Result 11759 states and 17033 transitions. [2022-07-22 23:52:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:52:35,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) Word has length 830 [2022-07-22 23:52:35,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:35,045 INFO L225 Difference]: With dead ends: 11759 [2022-07-22 23:52:35,045 INFO L226 Difference]: Without dead ends: 5905 [2022-07-22 23:52:35,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:52:35,064 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 2 mSDsluCounter, 12506 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16684 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:35,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16684 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 23:52:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5905 states. [2022-07-22 23:52:35,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5905 to 5903. [2022-07-22 23:52:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5903 states, 4139 states have (on average 1.327856970282677) internal successors, (5496), 4228 states have internal predecessors, (5496), 1442 states have call successors, (1442), 319 states have call predecessors, (1442), 321 states have return successors, (1542), 1405 states have call predecessors, (1542), 1441 states have call successors, (1542) [2022-07-22 23:52:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5903 states to 5903 states and 8480 transitions. [2022-07-22 23:52:35,187 INFO L78 Accepts]: Start accepts. Automaton has 5903 states and 8480 transitions. Word has length 830 [2022-07-22 23:52:35,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:35,188 INFO L495 AbstractCegarLoop]: Abstraction has 5903 states and 8480 transitions. [2022-07-22 23:52:35,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 4 states have internal predecessors, (369), 2 states have call successors, (113), 2 states have call predecessors, (113), 3 states have return successors, (112), 3 states have call predecessors, (112), 2 states have call successors, (112) [2022-07-22 23:52:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5903 states and 8480 transitions. [2022-07-22 23:52:35,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2022-07-22 23:52:35,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:35,207 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 12, 12, 12, 11, 11, 11, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:35,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 23:52:35,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:35,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1701709889, now seen corresponding path program 1 times [2022-07-22 23:52:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:35,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267367865] [2022-07-22 23:52:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:35,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:35,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:35,441 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) [2022-07-22 23:52:35,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 23:52:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:41,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 6795 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:52:41,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:41,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-07-22 23:52:41,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:41,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:41,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267367865] [2022-07-22 23:52:41,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267367865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:41,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:41,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:52:41,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3697190] [2022-07-22 23:52:41,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:41,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:52:41,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:41,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:52:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:52:41,477 INFO L87 Difference]: Start difference. First operand 5903 states and 8480 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-07-22 23:52:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:42,406 INFO L93 Difference]: Finished difference Result 17083 states and 24440 transitions. [2022-07-22 23:52:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:52:42,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) Word has length 772 [2022-07-22 23:52:42,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:42,448 INFO L225 Difference]: With dead ends: 17083 [2022-07-22 23:52:42,448 INFO L226 Difference]: Without dead ends: 11219 [2022-07-22 23:52:42,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:52:42,470 INFO L413 NwaCegarLoop]: 4825 mSDtfsCounter, 3744 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:42,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 8928 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 23:52:42,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2022-07-22 23:52:42,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 11207. [2022-07-22 23:52:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11207 states, 7836 states have (on average 1.3237621235324144) internal successors, (10373), 8004 states have internal predecessors, (10373), 2734 states have call successors, (2734), 631 states have call predecessors, (2734), 636 states have return successors, (2898), 2659 states have call predecessors, (2898), 2733 states have call successors, (2898) [2022-07-22 23:52:42,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11207 states to 11207 states and 16005 transitions. [2022-07-22 23:52:42,842 INFO L78 Accepts]: Start accepts. Automaton has 11207 states and 16005 transitions. Word has length 772 [2022-07-22 23:52:42,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:42,842 INFO L495 AbstractCegarLoop]: Abstraction has 11207 states and 16005 transitions. [2022-07-22 23:52:42,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 2 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (114), 2 states have call predecessors, (114), 2 states have call successors, (114) [2022-07-22 23:52:42,843 INFO L276 IsEmpty]: Start isEmpty. Operand 11207 states and 16005 transitions. [2022-07-22 23:52:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2022-07-22 23:52:42,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:42,872 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 12, 11, 11, 6, 6, 6, 6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:43,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-22 23:52:43,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:43,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:43,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:43,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1021734738, now seen corresponding path program 1 times [2022-07-22 23:52:43,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:43,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115659502] [2022-07-22 23:52:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:43,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:43,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:43,107 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) [2022-07-22 23:52:43,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-22 23:52:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:49,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 6775 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:52:49,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2022-07-22 23:52:49,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:49,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:49,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115659502] [2022-07-22 23:52:49,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115659502] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:49,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:49,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:52:49,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724490332] [2022-07-22 23:52:49,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:49,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:52:49,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:49,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:52:49,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:52:49,619 INFO L87 Difference]: Start difference. First operand 11207 states and 16005 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-07-22 23:52:51,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:51,037 INFO L93 Difference]: Finished difference Result 31691 states and 45377 transitions. [2022-07-22 23:52:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:52:51,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 743 [2022-07-22 23:52:51,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:51,139 INFO L225 Difference]: With dead ends: 31691 [2022-07-22 23:52:51,140 INFO L226 Difference]: Without dead ends: 20523 [2022-07-22 23:52:51,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:52:51,259 INFO L413 NwaCegarLoop]: 4801 mSDtfsCounter, 3542 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 8851 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:51,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 8851 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 23:52:51,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20523 states. [2022-07-22 23:52:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20523 to 20487. [2022-07-22 23:52:51,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20487 states, 14340 states have (on average 1.3233612273361228) internal successors, (18977), 14668 states have internal predecessors, (18977), 4968 states have call successors, (4968), 1171 states have call predecessors, (4968), 1178 states have return successors, (5446), 4815 states have call predecessors, (5446), 4967 states have call successors, (5446) [2022-07-22 23:52:51,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20487 states to 20487 states and 29391 transitions. [2022-07-22 23:52:51,860 INFO L78 Accepts]: Start accepts. Automaton has 20487 states and 29391 transitions. Word has length 743 [2022-07-22 23:52:51,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:52:51,860 INFO L495 AbstractCegarLoop]: Abstraction has 20487 states and 29391 transitions. [2022-07-22 23:52:51,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) [2022-07-22 23:52:51,861 INFO L276 IsEmpty]: Start isEmpty. Operand 20487 states and 29391 transitions. [2022-07-22 23:52:51,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-07-22 23:52:51,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:52:51,890 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 13, 13, 12, 10, 10, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:52:52,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-22 23:52:52,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:52:52,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:52:52,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:52:52,104 INFO L85 PathProgramCache]: Analyzing trace with hash -42087101, now seen corresponding path program 1 times [2022-07-22 23:52:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:52:52,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150462486] [2022-07-22 23:52:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:52:52,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:52:52,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:52:52,109 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) [2022-07-22 23:52:52,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-22 23:52:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:52:57,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 5635 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:52:57,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:52:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-22 23:52:57,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:52:57,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:52:57,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150462486] [2022-07-22 23:52:57,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150462486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:52:57,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:52:57,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:52:57,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107923229] [2022-07-22 23:52:57,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:52:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:52:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:52:57,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:52:57,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:52:57,574 INFO L87 Difference]: Start difference. First operand 20487 states and 29391 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2022-07-22 23:52:58,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:52:58,854 INFO L93 Difference]: Finished difference Result 60767 states and 87077 transitions. [2022-07-22 23:52:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:52:58,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 514 [2022-07-22 23:52:58,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:52:59,184 INFO L225 Difference]: With dead ends: 60767 [2022-07-22 23:52:59,199 INFO L226 Difference]: Without dead ends: 40319 [2022-07-22 23:52:59,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:52:59,316 INFO L413 NwaCegarLoop]: 5205 mSDtfsCounter, 4047 mSDsluCounter, 4118 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4047 SdHoareTripleChecker+Valid, 9323 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 23:52:59,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4047 Valid, 9323 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 23:52:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40319 states. [2022-07-22 23:53:00,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40319 to 40303. [2022-07-22 23:53:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40303 states, 28228 states have (on average 1.3225520759529545) internal successors, (37333), 28880 states have internal predecessors, (37333), 9744 states have call successors, (9744), 2315 states have call predecessors, (9744), 2330 states have return successors, (10644), 9435 states have call predecessors, (10644), 9743 states have call successors, (10644) [2022-07-22 23:53:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40303 states to 40303 states and 57721 transitions. [2022-07-22 23:53:00,693 INFO L78 Accepts]: Start accepts. Automaton has 40303 states and 57721 transitions. Word has length 514 [2022-07-22 23:53:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:00,693 INFO L495 AbstractCegarLoop]: Abstraction has 40303 states and 57721 transitions. [2022-07-22 23:53:00,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2022-07-22 23:53:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 40303 states and 57721 transitions. [2022-07-22 23:53:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2022-07-22 23:53:00,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:00,753 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 21, 21, 18, 18, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:01,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:01,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:53:01,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:01,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:01,268 INFO L85 PathProgramCache]: Analyzing trace with hash -865277417, now seen corresponding path program 1 times [2022-07-22 23:53:01,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:53:01,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753926668] [2022-07-22 23:53:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:01,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:53:01,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:53:01,281 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) [2022-07-22 23:53:01,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-22 23:53:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:07,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 6719 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:53:07,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2715 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2685 trivial. 0 not checked. [2022-07-22 23:53:07,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:53:07,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:53:07,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753926668] [2022-07-22 23:53:07,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753926668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:53:07,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:53:07,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:53:07,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414339254] [2022-07-22 23:53:07,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:07,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:53:07,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:53:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:53:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:53:07,338 INFO L87 Difference]: Start difference. First operand 40303 states and 57721 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-07-22 23:53:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:09,699 INFO L93 Difference]: Finished difference Result 119279 states and 170191 transitions. [2022-07-22 23:53:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:53:09,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 782 [2022-07-22 23:53:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:10,216 INFO L225 Difference]: With dead ends: 119279 [2022-07-22 23:53:10,216 INFO L226 Difference]: Without dead ends: 79015 [2022-07-22 23:53:10,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 780 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:53:10,344 INFO L413 NwaCegarLoop]: 4982 mSDtfsCounter, 3981 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 9073 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:10,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 9073 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 23:53:10,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79015 states. [2022-07-22 23:53:12,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79015 to 79007. [2022-07-22 23:53:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79007 states, 55036 states have (on average 1.3132676793371612) internal successors, (72277), 56328 states have internal predecessors, (72277), 19312 states have call successors, (19312), 4627 states have call predecessors, (19312), 4658 states have return successors, (20916), 18707 states have call predecessors, (20916), 19311 states have call successors, (20916) [2022-07-22 23:53:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79007 states to 79007 states and 112505 transitions. [2022-07-22 23:53:13,276 INFO L78 Accepts]: Start accepts. Automaton has 79007 states and 112505 transitions. Word has length 782 [2022-07-22 23:53:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:13,277 INFO L495 AbstractCegarLoop]: Abstraction has 79007 states and 112505 transitions. [2022-07-22 23:53:13,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-07-22 23:53:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 79007 states and 112505 transitions. [2022-07-22 23:53:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2022-07-22 23:53:13,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:13,393 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 25, 25, 17, 17, 12, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:13,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:13,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:53:13,621 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:13,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1112569729, now seen corresponding path program 1 times [2022-07-22 23:53:13,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:53:13,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346658319] [2022-07-22 23:53:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:13,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:53:13,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:53:13,628 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) [2022-07-22 23:53:13,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-22 23:53:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:20,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 7889 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:53:20,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 2659 trivial. 0 not checked. [2022-07-22 23:53:21,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:53:21,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:53:21,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346658319] [2022-07-22 23:53:21,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346658319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:53:21,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:53:21,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:53:21,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106374667] [2022-07-22 23:53:21,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:21,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:53:21,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:53:21,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:53:21,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:53:21,013 INFO L87 Difference]: Start difference. First operand 79007 states and 112505 transitions. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2022-07-22 23:53:24,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:53:24,453 INFO L93 Difference]: Finished difference Result 223435 states and 317065 transitions. [2022-07-22 23:53:24,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:53:24,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) Word has length 919 [2022-07-22 23:53:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:53:25,251 INFO L225 Difference]: With dead ends: 223435 [2022-07-22 23:53:25,251 INFO L226 Difference]: Without dead ends: 144467 [2022-07-22 23:53:25,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:53:25,712 INFO L413 NwaCegarLoop]: 6050 mSDtfsCounter, 3580 mSDsluCounter, 4139 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 10189 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:53:25,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3580 Valid, 10189 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 23:53:25,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144467 states. [2022-07-22 23:53:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144467 to 144395. [2022-07-22 23:53:29,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144395 states, 100092 states have (on average 1.3090456779762618) internal successors, (131025), 102504 states have internal predecessors, (131025), 35372 states have call successors, (35372), 8847 states have call predecessors, (35372), 8930 states have return successors, (38110), 34275 states have call predecessors, (38110), 35371 states have call successors, (38110) [2022-07-22 23:53:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144395 states to 144395 states and 204507 transitions. [2022-07-22 23:53:30,826 INFO L78 Accepts]: Start accepts. Automaton has 144395 states and 204507 transitions. Word has length 919 [2022-07-22 23:53:30,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:53:30,826 INFO L495 AbstractCegarLoop]: Abstraction has 144395 states and 204507 transitions. [2022-07-22 23:53:30,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 2 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2022-07-22 23:53:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand 144395 states and 204507 transitions. [2022-07-22 23:53:31,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2022-07-22 23:53:31,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:53:31,024 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 20, 12, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:53:31,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-22 23:53:31,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:53:31,252 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:53:31,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:53:31,252 INFO L85 PathProgramCache]: Analyzing trace with hash -695416437, now seen corresponding path program 1 times [2022-07-22 23:53:31,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:53:31,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917331611] [2022-07-22 23:53:31,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:53:31,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:53:31,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:53:31,258 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) [2022-07-22 23:53:31,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-22 23:53:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:53:38,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 6885 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 23:53:38,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:53:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 740 proven. 80 refuted. 0 times theorem prover too weak. 1753 trivial. 0 not checked. [2022-07-22 23:53:42,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:53:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2022-07-22 23:53:46,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:53:46,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917331611] [2022-07-22 23:53:46,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917331611] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 23:53:46,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:53:46,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-07-22 23:53:46,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020942901] [2022-07-22 23:53:46,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:53:46,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:53:46,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:53:46,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:53:46,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:53:46,596 INFO L87 Difference]: Start difference. First operand 144395 states and 204507 transitions. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 5 states have call successors, (122), 3 states have call predecessors, (122), 2 states have return successors, (121), 5 states have call predecessors, (121), 5 states have call successors, (121) [2022-07-22 23:53:51,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:54,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:53:57,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:00,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:04,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:06,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []