./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 03:38:45,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:38:45,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:38:45,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:38:45,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:38:45,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:38:45,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:38:45,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:38:45,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:38:45,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:38:45,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:38:45,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:38:45,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:38:45,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:38:45,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:38:45,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:38:45,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:38:45,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:38:45,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:38:45,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:38:45,976 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:38:45,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:38:45,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:38:45,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:38:45,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:38:45,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:38:45,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:38:45,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:38:45,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:38:45,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:38:45,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:38:45,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:38:45,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:38:45,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:38:45,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:38:45,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:38:45,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:38:45,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:38:45,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:38:45,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:38:45,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:38:45,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:38:45,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 03:38:46,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:38:46,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:38:46,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:38:46,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:38:46,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:38:46,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:38:46,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:38:46,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:38:46,032 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:38:46,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:38:46,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 03:38:46,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:38:46,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:38:46,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:38:46,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:38:46,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:38:46,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:38:46,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:38:46,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:38:46,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:38:46,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:38:46,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:38:46,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:38:46,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:38:46,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:38:46,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 03:38:46,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 03:38:46,036 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:38:46,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:38:46,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:38:46,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-07-20 03:38:46,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:38:46,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:38:46,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:38:46,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:38:46,293 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:38:46,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-20 03:38:46,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aedcf068/eb8ee2cc983240c49917b33b5111cd5e/FLAG6c3ac3244 [2022-07-20 03:38:47,217 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:38:47,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-20 03:38:47,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aedcf068/eb8ee2cc983240c49917b33b5111cd5e/FLAG6c3ac3244 [2022-07-20 03:38:47,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aedcf068/eb8ee2cc983240c49917b33b5111cd5e [2022-07-20 03:38:47,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:38:47,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:38:47,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:38:47,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:38:47,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:38:47,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:38:47" (1/1) ... [2022-07-20 03:38:47,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d64f75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:38:47, skipping insertion in model container [2022-07-20 03:38:47,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:38:47" (1/1) ... [2022-07-20 03:38:47,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:38:47,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:38:50,912 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-20 03:38:50,915 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-20 03:38:50,916 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-20 03:38:50,917 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-20 03:38:50,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:38:51,041 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:38:51,382 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: phy_val = (unsigned int )phy_val & 65027U [15260] 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.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 03:38:51,387 INFO L158 Benchmark]: Toolchain (without parser) took 4007.64ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 81.6MB in the beginning and 89.5MB in the end (delta: -8.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2022-07-20 03:38:51,388 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 03:38:51,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4004.22ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 81.6MB in the beginning and 89.5MB in the end (delta: -8.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2022-07-20 03:38:51,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4004.22ms. Allocated memory was 123.7MB in the beginning and 201.3MB in the end (delta: 77.6MB). Free memory was 81.6MB in the beginning and 89.5MB in the end (delta: -8.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: phy_val = (unsigned int )phy_val & 65027U [15260] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: phy_val = (unsigned int )phy_val & 65027U [15260]: 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 03:38:53,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:38:53,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:38:53,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:38:53,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:38:53,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:38:53,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:38:53,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:38:53,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:38:53,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:38:53,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:38:53,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:38:53,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:38:53,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:38:53,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:38:53,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:38:53,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:38:53,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:38:53,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:38:53,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:38:53,263 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:38:53,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:38:53,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:38:53,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:38:53,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:38:53,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:38:53,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:38:53,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:38:53,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:38:53,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:38:53,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:38:53,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:38:53,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:38:53,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:38:53,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:38:53,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:38:53,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:38:53,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:38:53,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:38:53,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:38:53,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:38:53,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:38:53,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 03:38:53,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:38:53,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:38:53,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:38:53,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:38:53,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:38:53,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:38:53,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:38:53,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:38:53,326 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:38:53,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:38:53,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:38:53,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:38:53,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:38:53,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:38:53,328 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 03:38:53,328 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 03:38:53,328 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 03:38:53,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:38:53,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:38:53,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:38:53,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:38:53,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:38:53,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:38:53,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:38:53,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:38:53,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:38:53,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:38:53,331 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 03:38:53,331 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 03:38:53,331 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:38:53,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:38:53,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:38:53,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 03:38:53,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-07-20 03:38:53,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:38:53,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:38:53,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:38:53,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:38:53,651 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:38:53,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-20 03:38:53,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/999b9d6f8/e026d70c979c4c568ca6a134ab2df8a6/FLAG2844575e0 [2022-07-20 03:38:54,725 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:38:54,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-20 03:38:54,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/999b9d6f8/e026d70c979c4c568ca6a134ab2df8a6/FLAG2844575e0 [2022-07-20 03:38:55,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/999b9d6f8/e026d70c979c4c568ca6a134ab2df8a6 [2022-07-20 03:38:55,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:38:55,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:38:55,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:38:55,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:38:55,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:38:55,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:38:55" (1/1) ... [2022-07-20 03:38:55,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da6ce90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:38:55, skipping insertion in model container [2022-07-20 03:38:55,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:38:55" (1/1) ... [2022-07-20 03:38:55,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:38:55,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:38:59,136 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-20 03:38:59,147 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-20 03:38:59,148 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-20 03:38:59,148 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-20 03:38:59,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:38:59,286 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 03:38:59,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:38:59,768 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-20 03:38:59,769 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-20 03:38:59,769 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-20 03:38:59,769 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-20 03:38:59,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:38:59,804 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:39:00,317 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-07-20 03:39:00,318 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-07-20 03:39:00,319 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-07-20 03:39:00,322 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-07-20 03:39:00,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:39:00,596 INFO L208 MainTranslator]: Completed translation [2022-07-20 03:39:00,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00 WrapperNode [2022-07-20 03:39:00,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 03:39:00,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 03:39:00,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 03:39:00,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 03:39:00,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:00,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,083 INFO L137 Inliner]: procedures = 557, calls = 4106, calls flagged for inlining = 313, calls inlined = 291, statements flattened = 8240 [2022-07-20 03:39:01,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 03:39:01,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 03:39:01,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 03:39:01,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 03:39:01,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 03:39:01,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 03:39:01,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 03:39:01,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 03:39:01,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (1/1) ... [2022-07-20 03:39:01,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:39:01,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 03:39:01,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 03:39:01,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 03:39:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-07-20 03:39:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-07-20 03:39:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 03:39:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 03:39:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-07-20 03:39:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-07-20 03:39:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 03:39:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 03:39:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2022-07-20 03:39:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2022-07-20 03:39:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2022-07-20 03:39:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2022-07-20 03:39:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-07-20 03:39:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-07-20 03:39:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2022-07-20 03:39:01,504 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2022-07-20 03:39:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2022-07-20 03:39:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2022-07-20 03:39:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-20 03:39:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-20 03:39:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2022-07-20 03:39:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2022-07-20 03:39:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 03:39:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 03:39:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 03:39:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 03:39:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2022-07-20 03:39:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2022-07-20 03:39:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2022-07-20 03:39:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2022-07-20 03:39:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2022-07-20 03:39:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2022-07-20 03:39:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 03:39:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 03:39:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2022-07-20 03:39:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2022-07-20 03:39:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-20 03:39:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-20 03:39:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2022-07-20 03:39:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2022-07-20 03:39:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 03:39:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 03:39:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 03:39:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 03:39:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 03:39:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 03:39:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 03:39:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 03:39:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2022-07-20 03:39:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2022-07-20 03:39:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2022-07-20 03:39:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2022-07-20 03:39:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 03:39:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 03:39:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 03:39:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 03:39:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2022-07-20 03:39:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2022-07-20 03:39:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-20 03:39:01,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-20 03:39:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 03:39:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 03:39:01,514 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 03:39:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2022-07-20 03:39:01,514 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2022-07-20 03:39:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 03:39:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 03:39:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 03:39:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-20 03:39:01,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-20 03:39:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-20 03:39:01,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-20 03:39:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2022-07-20 03:39:01,516 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2022-07-20 03:39:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-07-20 03:39:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2022-07-20 03:39:01,516 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2022-07-20 03:39:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 03:39:01,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 03:39:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 03:39:01,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 03:39:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2022-07-20 03:39:01,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2022-07-20 03:39:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2022-07-20 03:39:01,518 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2022-07-20 03:39:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 03:39:01,518 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 03:39:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2022-07-20 03:39:01,519 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2022-07-20 03:39:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 03:39:01,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 03:39:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2022-07-20 03:39:01,519 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2022-07-20 03:39:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 03:39:01,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 03:39:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 03:39:01,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 03:39:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 03:39:01,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 03:39:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 03:39:01,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 03:39:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 03:39:01,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 03:39:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2022-07-20 03:39:01,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2022-07-20 03:39:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2022-07-20 03:39:01,522 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2022-07-20 03:39:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 03:39:01,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 03:39:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 03:39:01,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 03:39:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2022-07-20 03:39:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2022-07-20 03:39:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2022-07-20 03:39:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2022-07-20 03:39:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 03:39:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 03:39:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 03:39:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-20 03:39:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-20 03:39:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-20 03:39:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-20 03:39:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-07-20 03:39:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-07-20 03:39:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2022-07-20 03:39:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2022-07-20 03:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-07-20 03:39:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-07-20 03:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2022-07-20 03:39:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2022-07-20 03:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 03:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-20 03:39:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-20 03:39:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 03:39:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 03:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 03:39:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 03:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 03:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 03:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2022-07-20 03:39:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2022-07-20 03:39:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 03:39:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2022-07-20 03:39:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2022-07-20 03:39:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 03:39:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2022-07-20 03:39:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2022-07-20 03:39:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:39:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:39:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 03:39:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-20 03:39:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~X~$Pointer$~TO~C_INT [2022-07-20 03:39:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-07-20 03:39:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-07-20 03:39:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2022-07-20 03:39:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2022-07-20 03:39:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2022-07-20 03:39:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2022-07-20 03:39:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2022-07-20 03:39:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2022-07-20 03:39:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2022-07-20 03:39:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2022-07-20 03:39:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 03:39:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 03:39:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-20 03:39:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-20 03:39:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 03:39:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 03:39:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2022-07-20 03:39:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2022-07-20 03:39:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 03:39:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 03:39:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-07-20 03:39:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-07-20 03:39:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2022-07-20 03:39:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2022-07-20 03:39:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 03:39:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 03:39:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 03:39:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2022-07-20 03:39:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2022-07-20 03:39:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 03:39:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 03:39:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-20 03:39:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-20 03:39:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-07-20 03:39:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-07-20 03:39:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 03:39:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 03:39:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 03:39:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 03:39:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 03:39:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 03:39:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 03:39:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 03:39:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-20 03:39:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-20 03:39:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-20 03:39:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-20 03:39:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 03:39:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 03:39:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-20 03:39:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2022-07-20 03:39:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2022-07-20 03:39:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-20 03:39:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-20 03:39:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-20 03:39:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-20 03:39:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2022-07-20 03:39:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2022-07-20 03:39:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 03:39:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 03:39:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-07-20 03:39:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-07-20 03:39:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2022-07-20 03:39:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2022-07-20 03:39:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 03:39:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 03:39:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2022-07-20 03:39:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2022-07-20 03:39:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2022-07-20 03:39:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2022-07-20 03:39:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-07-20 03:39:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-07-20 03:39:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 03:39:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 03:39:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-20 03:39:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-20 03:39:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-07-20 03:39:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-07-20 03:39:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-07-20 03:39:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-07-20 03:39:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 03:39:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 03:39:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 03:39:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 03:39:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 03:39:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2022-07-20 03:39:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2022-07-20 03:39:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2022-07-20 03:39:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2022-07-20 03:39:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-20 03:39:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-20 03:39:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2022-07-20 03:39:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2022-07-20 03:39:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 03:39:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 03:39:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-07-20 03:39:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-07-20 03:39:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 03:39:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 03:39:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 03:39:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 03:39:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 03:39:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 03:39:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2022-07-20 03:39:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2022-07-20 03:39:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-20 03:39:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-20 03:39:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2022-07-20 03:39:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2022-07-20 03:39:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-20 03:39:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-20 03:39:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-20 03:39:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-20 03:39:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-20 03:39:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-20 03:39:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 03:39:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 03:39:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-07-20 03:39:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-07-20 03:39:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 03:39:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 03:39:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 03:39:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 03:39:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-07-20 03:39:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-07-20 03:39:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-20 03:39:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-20 03:39:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 03:39:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 03:39:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 03:39:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 03:39:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2022-07-20 03:39:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2022-07-20 03:39:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 03:39:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 03:39:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2022-07-20 03:39:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2022-07-20 03:39:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 03:39:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 03:39:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2022-07-20 03:39:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2022-07-20 03:39:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 03:39:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 03:39:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 03:39:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 03:39:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 03:39:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 03:39:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2022-07-20 03:39:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2022-07-20 03:39:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2022-07-20 03:39:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2022-07-20 03:39:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2022-07-20 03:39:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2022-07-20 03:39:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2022-07-20 03:39:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2022-07-20 03:39:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-20 03:39:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-20 03:39:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2022-07-20 03:39:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2022-07-20 03:39:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-20 03:39:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-20 03:39:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-07-20 03:39:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-07-20 03:39:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2022-07-20 03:39:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2022-07-20 03:39:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2022-07-20 03:39:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2022-07-20 03:39:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2022-07-20 03:39:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2022-07-20 03:39:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2022-07-20 03:39:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2022-07-20 03:39:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2022-07-20 03:39:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2022-07-20 03:39:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-20 03:39:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-20 03:39:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-20 03:39:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-20 03:39:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 03:39:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 03:39:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-20 03:39:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-20 03:39:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-07-20 03:39:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-07-20 03:39:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2022-07-20 03:39:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2022-07-20 03:39:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2022-07-20 03:39:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2022-07-20 03:39:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-07-20 03:39:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-07-20 03:39:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 03:39:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 03:39:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-20 03:39:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-20 03:39:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-20 03:39:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-20 03:39:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 03:39:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 03:39:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-07-20 03:39:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-07-20 03:39:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2022-07-20 03:39:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2022-07-20 03:39:02,601 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 03:39:02,605 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 03:39:02,727 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 03:39:39,256 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 03:39:40,000 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 03:39:40,028 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 03:39:40,029 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-20 03:39:40,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:39:40 BoogieIcfgContainer [2022-07-20 03:39:40,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 03:39:40,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 03:39:40,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 03:39:40,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 03:39:40,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:38:55" (1/3) ... [2022-07-20 03:39:40,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc5375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:39:40, skipping insertion in model container [2022-07-20 03:39:40,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:39:00" (2/3) ... [2022-07-20 03:39:40,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc5375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:39:40, skipping insertion in model container [2022-07-20 03:39:40,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:39:40" (3/3) ... [2022-07-20 03:39:40,043 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-07-20 03:39:40,056 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 03:39:40,057 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-20 03:39:40,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 03:39:40,186 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@338b1bb0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3fbfd2b3 [2022-07-20 03:39:40,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-20 03:39:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 3037 states, 2051 states have (on average 1.273037542662116) internal successors, (2611), 2096 states have internal predecessors, (2611), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) [2022-07-20 03:39:40,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-20 03:39:40,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:39:40,237 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:39:40,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:39:40,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:39:40,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1301196360, now seen corresponding path program 1 times [2022-07-20 03:39:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:39:40,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846452933] [2022-07-20 03:39:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:39:40,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:39:40,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:39:40,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:39:40,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 03:39:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:39:42,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2844 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:39:42,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:39:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-07-20 03:39:42,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:39:42,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:39:42,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846452933] [2022-07-20 03:39:42,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846452933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:39:42,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:39:42,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:39:42,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484441997] [2022-07-20 03:39:42,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:39:42,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:39:42,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:39:42,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:39:42,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:42,987 INFO L87 Difference]: Start difference. First operand has 3037 states, 2051 states have (on average 1.273037542662116) internal successors, (2611), 2096 states have internal predecessors, (2611), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-20 03:39:43,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:39:43,782 INFO L93 Difference]: Finished difference Result 8849 states and 12555 transitions. [2022-07-20 03:39:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:39:43,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 203 [2022-07-20 03:39:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:39:43,855 INFO L225 Difference]: With dead ends: 8849 [2022-07-20 03:39:43,855 INFO L226 Difference]: Without dead ends: 5835 [2022-07-20 03:39:43,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:43,890 INFO L413 NwaCegarLoop]: 4938 mSDtfsCounter, 4025 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4025 SdHoareTripleChecker+Valid, 9038 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 03:39:43,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4025 Valid, 9038 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 03:39:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2022-07-20 03:39:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5833. [2022-07-20 03:39:44,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5833 states, 3938 states have (on average 1.2600304723209752) internal successors, (4962), 4017 states have internal predecessors, (4962), 1580 states have call successors, (1580), 314 states have call predecessors, (1580), 313 states have return successors, (1577), 1555 states have call predecessors, (1577), 1577 states have call successors, (1577) [2022-07-20 03:39:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8119 transitions. [2022-07-20 03:39:44,419 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8119 transitions. Word has length 203 [2022-07-20 03:39:44,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:39:44,423 INFO L495 AbstractCegarLoop]: Abstraction has 5833 states and 8119 transitions. [2022-07-20 03:39:44,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-20 03:39:44,424 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8119 transitions. [2022-07-20 03:39:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-20 03:39:44,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:39:44,439 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:39:44,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-20 03:39:44,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:39:44,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:39:44,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:39:44,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1624803173, now seen corresponding path program 1 times [2022-07-20 03:39:44,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:39:44,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164025878] [2022-07-20 03:39:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:39:44,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:39:44,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:39:44,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:39:44,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 03:39:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:39:47,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:39:47,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:39:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1080 trivial. 0 not checked. [2022-07-20 03:39:47,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:39:47,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:39:47,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164025878] [2022-07-20 03:39:47,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164025878] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:39:47,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:39:47,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:39:47,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503894914] [2022-07-20 03:39:47,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:39:47,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:39:47,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:39:47,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:39:47,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:47,444 INFO L87 Difference]: Start difference. First operand 5833 states and 8119 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-20 03:39:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:39:48,426 INFO L93 Difference]: Finished difference Result 13679 states and 18993 transitions. [2022-07-20 03:39:48,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:39:48,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 224 [2022-07-20 03:39:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:39:48,501 INFO L225 Difference]: With dead ends: 13679 [2022-07-20 03:39:48,501 INFO L226 Difference]: Without dead ends: 7883 [2022-07-20 03:39:48,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:48,545 INFO L413 NwaCegarLoop]: 4803 mSDtfsCounter, 3400 mSDsluCounter, 4058 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3400 SdHoareTripleChecker+Valid, 8861 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 03:39:48,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3400 Valid, 8861 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 03:39:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7883 states. [2022-07-20 03:39:48,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7883 to 7874. [2022-07-20 03:39:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7874 states, 5330 states have (on average 1.2545966228893057) internal successors, (6687), 5435 states have internal predecessors, (6687), 2102 states have call successors, (2102), 442 states have call predecessors, (2102), 440 states have return successors, (2099), 2065 states have call predecessors, (2099), 2099 states have call successors, (2099) [2022-07-20 03:39:48,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 10888 transitions. [2022-07-20 03:39:48,975 INFO L78 Accepts]: Start accepts. Automaton has 7874 states and 10888 transitions. Word has length 224 [2022-07-20 03:39:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:39:48,977 INFO L495 AbstractCegarLoop]: Abstraction has 7874 states and 10888 transitions. [2022-07-20 03:39:48,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-20 03:39:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7874 states and 10888 transitions. [2022-07-20 03:39:48,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-20 03:39:48,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:39:48,988 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 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] [2022-07-20 03:39:49,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-20 03:39:49,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:39:49,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:39:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:39:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1443645317, now seen corresponding path program 1 times [2022-07-20 03:39:49,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:39:49,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880469020] [2022-07-20 03:39:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:39:49,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:39:49,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:39:49,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:39:49,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 03:39:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:39:51,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 2910 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:39:51,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:39:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2022-07-20 03:39:51,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:39:51,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:39:51,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880469020] [2022-07-20 03:39:51,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880469020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:39:51,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:39:51,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:39:51,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965291193] [2022-07-20 03:39:51,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:39:51,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:39:51,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:39:51,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:39:51,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:51,971 INFO L87 Difference]: Start difference. First operand 7874 states and 10888 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-20 03:39:52,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:39:52,906 INFO L93 Difference]: Finished difference Result 20905 states and 28913 transitions. [2022-07-20 03:39:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:39:52,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 238 [2022-07-20 03:39:52,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:39:53,034 INFO L225 Difference]: With dead ends: 20905 [2022-07-20 03:39:53,034 INFO L226 Difference]: Without dead ends: 13068 [2022-07-20 03:39:53,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:53,087 INFO L413 NwaCegarLoop]: 4906 mSDtfsCounter, 3948 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3948 SdHoareTripleChecker+Valid, 8990 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 03:39:53,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3948 Valid, 8990 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 03:39:53,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13068 states. [2022-07-20 03:39:53,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13068 to 13055. [2022-07-20 03:39:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13055 states, 8835 states have (on average 1.2529711375212225) internal successors, (11070), 9019 states have internal predecessors, (11070), 3485 states have call successors, (3485), 736 states have call predecessors, (3485), 733 states have return successors, (3482), 3416 states have call predecessors, (3482), 3482 states have call successors, (3482) [2022-07-20 03:39:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13055 states to 13055 states and 18037 transitions. [2022-07-20 03:39:53,783 INFO L78 Accepts]: Start accepts. Automaton has 13055 states and 18037 transitions. Word has length 238 [2022-07-20 03:39:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:39:53,784 INFO L495 AbstractCegarLoop]: Abstraction has 13055 states and 18037 transitions. [2022-07-20 03:39:53,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-20 03:39:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13055 states and 18037 transitions. [2022-07-20 03:39:53,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-20 03:39:53,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:39:53,795 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 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] [2022-07-20 03:39:53,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 03:39:54,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:39:54,016 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:39:54,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:39:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1877215274, now seen corresponding path program 1 times [2022-07-20 03:39:54,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:39:54,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363225930] [2022-07-20 03:39:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:39:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:39:54,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:39:54,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:39:54,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 03:39:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:39:56,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:39:56,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:39:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1245 trivial. 0 not checked. [2022-07-20 03:39:56,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:39:56,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:39:56,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363225930] [2022-07-20 03:39:56,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363225930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:39:56,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:39:56,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:39:56,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810590014] [2022-07-20 03:39:56,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:39:56,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:39:56,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:39:56,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:39:56,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:56,423 INFO L87 Difference]: Start difference. First operand 13055 states and 18037 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-20 03:39:57,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:39:57,417 INFO L93 Difference]: Finished difference Result 34176 states and 47261 transitions. [2022-07-20 03:39:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:39:57,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 259 [2022-07-20 03:39:57,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:39:57,574 INFO L225 Difference]: With dead ends: 34176 [2022-07-20 03:39:57,575 INFO L226 Difference]: Without dead ends: 23497 [2022-07-20 03:39:57,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:39:57,634 INFO L413 NwaCegarLoop]: 7634 mSDtfsCounter, 3983 mSDsluCounter, 4102 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3983 SdHoareTripleChecker+Valid, 11736 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 03:39:57,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3983 Valid, 11736 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 03:39:57,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23497 states. [2022-07-20 03:39:58,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23497 to 23495. [2022-07-20 03:39:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23495 states, 15911 states have (on average 1.2537238388536234) internal successors, (19948), 16231 states have internal predecessors, (19948), 6263 states have call successors, (6263), 1322 states have call predecessors, (6263), 1319 states have return successors, (6260), 6154 states have call predecessors, (6260), 6260 states have call successors, (6260) [2022-07-20 03:39:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23495 states to 23495 states and 32471 transitions. [2022-07-20 03:39:58,879 INFO L78 Accepts]: Start accepts. Automaton has 23495 states and 32471 transitions. Word has length 259 [2022-07-20 03:39:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:39:58,880 INFO L495 AbstractCegarLoop]: Abstraction has 23495 states and 32471 transitions. [2022-07-20 03:39:58,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-20 03:39:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 23495 states and 32471 transitions. [2022-07-20 03:39:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-20 03:39:58,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:39:58,892 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 4, 4, 4, 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] [2022-07-20 03:39:58,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 03:39:59,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:39:59,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:39:59,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:39:59,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1743201768, now seen corresponding path program 1 times [2022-07-20 03:39:59,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:39:59,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003681700] [2022-07-20 03:39:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:39:59,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:39:59,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:39:59,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:39:59,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 03:40:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:40:01,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:40:01,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:40:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2022-07-20 03:40:03,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:40:03,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:40:03,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003681700] [2022-07-20 03:40:03,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003681700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:40:03,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:40:03,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:40:03,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134544384] [2022-07-20 03:40:03,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:40:03,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:40:03,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:40:03,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:40:03,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:40:03,755 INFO L87 Difference]: Start difference. First operand 23495 states and 32471 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-20 03:40:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:40:04,842 INFO L93 Difference]: Finished difference Result 23495 states and 32471 transitions. [2022-07-20 03:40:04,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 03:40:04,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 259 [2022-07-20 03:40:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:40:05,002 INFO L225 Difference]: With dead ends: 23495 [2022-07-20 03:40:05,003 INFO L226 Difference]: Without dead ends: 23440 [2022-07-20 03:40:05,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 03:40:05,038 INFO L413 NwaCegarLoop]: 4125 mSDtfsCounter, 4018 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 8250 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 03:40:05,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 8250 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 03:40:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23440 states. [2022-07-20 03:40:06,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23440 to 23440. [2022-07-20 03:40:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23440 states, 15886 states have (on average 1.2533677451844392) internal successors, (19911), 16194 states have internal predecessors, (19911), 6236 states have call successors, (6236), 1317 states have call predecessors, (6236), 1317 states have return successors, (6236), 6141 states have call predecessors, (6236), 6236 states have call successors, (6236) [2022-07-20 03:40:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23440 states to 23440 states and 32383 transitions. [2022-07-20 03:40:06,214 INFO L78 Accepts]: Start accepts. Automaton has 23440 states and 32383 transitions. Word has length 259 [2022-07-20 03:40:06,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:40:06,215 INFO L495 AbstractCegarLoop]: Abstraction has 23440 states and 32383 transitions. [2022-07-20 03:40:06,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-20 03:40:06,216 INFO L276 IsEmpty]: Start isEmpty. Operand 23440 states and 32383 transitions. [2022-07-20 03:40:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-20 03:40:06,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:40:06,252 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 16, 16, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:40:06,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 03:40:06,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:40:06,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:40:06,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:40:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash 539287825, now seen corresponding path program 1 times [2022-07-20 03:40:06,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:40:06,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393835635] [2022-07-20 03:40:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:40:06,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:40:06,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:40:06,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:40:06,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 03:40:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:40:09,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 3126 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:40:09,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:40:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1194 trivial. 0 not checked. [2022-07-20 03:40:09,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:40:09,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:40:09,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393835635] [2022-07-20 03:40:09,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393835635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:40:09,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:40:09,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:40:09,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706131076] [2022-07-20 03:40:09,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:40:09,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:40:09,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:40:09,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:40:09,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:40:09,817 INFO L87 Difference]: Start difference. First operand 23440 states and 32383 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 03:40:11,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:40:11,240 INFO L93 Difference]: Finished difference Result 54130 states and 74789 transitions. [2022-07-20 03:40:11,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:40:11,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 288 [2022-07-20 03:40:11,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:40:11,513 INFO L225 Difference]: With dead ends: 54130 [2022-07-20 03:40:11,513 INFO L226 Difference]: Without dead ends: 33066 [2022-07-20 03:40:11,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:40:11,604 INFO L413 NwaCegarLoop]: 7359 mSDtfsCounter, 3355 mSDsluCounter, 4028 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3355 SdHoareTripleChecker+Valid, 11387 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 03:40:11,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3355 Valid, 11387 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 03:40:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33066 states. [2022-07-20 03:40:12,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33066 to 33062. [2022-07-20 03:40:13,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33062 states, 22420 states have (on average 1.2522301516503123) internal successors, (28075), 22852 states have internal predecessors, (28075), 8768 states have call successors, (8768), 1873 states have call predecessors, (8768), 1873 states have return successors, (8768), 8633 states have call predecessors, (8768), 8768 states have call successors, (8768) [2022-07-20 03:40:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33062 states to 33062 states and 45611 transitions. [2022-07-20 03:40:13,295 INFO L78 Accepts]: Start accepts. Automaton has 33062 states and 45611 transitions. Word has length 288 [2022-07-20 03:40:13,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:40:13,296 INFO L495 AbstractCegarLoop]: Abstraction has 33062 states and 45611 transitions. [2022-07-20 03:40:13,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-20 03:40:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 33062 states and 45611 transitions. [2022-07-20 03:40:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-07-20 03:40:13,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:40:13,335 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 16, 16, 16, 16, 16, 16, 6, 6, 6, 3, 3, 3, 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] [2022-07-20 03:40:13,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 03:40:13,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:40:13,557 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:40:13,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:40:13,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1170616974, now seen corresponding path program 1 times [2022-07-20 03:40:13,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:40:13,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344303946] [2022-07-20 03:40:13,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:40:13,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:40:13,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:40:13,563 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:40:13,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 03:40:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:40:15,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 3063 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:40:15,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:40:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-07-20 03:40:16,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:40:16,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:40:16,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344303946] [2022-07-20 03:40:16,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344303946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:40:16,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:40:16,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:40:16,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26833570] [2022-07-20 03:40:16,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:40:16,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:40:16,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:40:16,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:40:16,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:40:16,138 INFO L87 Difference]: Start difference. First operand 33062 states and 45611 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-20 03:40:17,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:40:17,584 INFO L93 Difference]: Finished difference Result 78963 states and 108967 transitions. [2022-07-20 03:40:17,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:40:17,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 314 [2022-07-20 03:40:17,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:40:17,799 INFO L225 Difference]: With dead ends: 78963 [2022-07-20 03:40:17,800 INFO L226 Difference]: Without dead ends: 45892 [2022-07-20 03:40:17,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:40:17,923 INFO L413 NwaCegarLoop]: 8084 mSDtfsCounter, 3979 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3979 SdHoareTripleChecker+Valid, 12164 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:40:17,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3979 Valid, 12164 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 03:40:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45892 states. [2022-07-20 03:40:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45892 to 45890. [2022-07-20 03:40:19,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45890 states, 31108 states have (on average 1.2527324160987527) internal successors, (38970), 31706 states have internal predecessors, (38970), 12182 states have call successors, (12182), 2599 states have call predecessors, (12182), 2599 states have return successors, (12182), 11998 states have call predecessors, (12182), 12182 states have call successors, (12182) [2022-07-20 03:40:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45890 states to 45890 states and 63334 transitions. [2022-07-20 03:40:19,858 INFO L78 Accepts]: Start accepts. Automaton has 45890 states and 63334 transitions. Word has length 314 [2022-07-20 03:40:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:40:19,859 INFO L495 AbstractCegarLoop]: Abstraction has 45890 states and 63334 transitions. [2022-07-20 03:40:19,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-20 03:40:19,860 INFO L276 IsEmpty]: Start isEmpty. Operand 45890 states and 63334 transitions. [2022-07-20 03:40:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-20 03:40:19,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:40:19,920 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 03:40:20,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 03:40:20,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:40:20,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:40:20,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:40:20,141 INFO L85 PathProgramCache]: Analyzing trace with hash -160605202, now seen corresponding path program 1 times [2022-07-20 03:40:20,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:40:20,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487986520] [2022-07-20 03:40:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:40:20,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:40:20,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:40:20,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:40:20,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 03:40:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:40:22,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 03:40:22,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:40:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 384 proven. 3 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2022-07-20 03:40:23,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:40:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 42 proven. 24 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2022-07-20 03:40:25,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:40:25,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487986520] [2022-07-20 03:40:25,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487986520] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 03:40:25,843 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 03:40:25,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-20 03:40:25,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695797794] [2022-07-20 03:40:25,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 03:40:25,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-20 03:40:25,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:40:25,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-20 03:40:25,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-20 03:40:25,845 INFO L87 Difference]: Start difference. First operand 45890 states and 63334 transitions. Second operand has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) [2022-07-20 03:41:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:41:09,122 INFO L93 Difference]: Finished difference Result 117518 states and 162196 transitions. [2022-07-20 03:41:09,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-20 03:41:09,123 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) Word has length 338 [2022-07-20 03:41:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:41:09,526 INFO L225 Difference]: With dead ends: 117518 [2022-07-20 03:41:09,527 INFO L226 Difference]: Without dead ends: 71595 [2022-07-20 03:41:09,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=173, Invalid=1017, Unknown=0, NotChecked=0, Total=1190 [2022-07-20 03:41:09,732 INFO L413 NwaCegarLoop]: 8376 mSDtfsCounter, 12116 mSDsluCounter, 99110 mSDsCounter, 0 mSdLazyCounter, 7731 mSolverCounterSat, 2278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12432 SdHoareTripleChecker+Valid, 107486 SdHoareTripleChecker+Invalid, 10009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2278 IncrementalHoareTripleChecker+Valid, 7731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2022-07-20 03:41:09,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12432 Valid, 107486 Invalid, 10009 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2278 Valid, 7731 Invalid, 0 Unknown, 0 Unchecked, 38.9s Time] [2022-07-20 03:41:09,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71595 states. [2022-07-20 03:41:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71595 to 45934. [2022-07-20 03:41:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45934 states, 31139 states have (on average 1.2525129259128425) internal successors, (39002), 31737 states have internal predecessors, (39002), 12184 states have call successors, (12184), 2610 states have call predecessors, (12184), 2610 states have return successors, (12184), 12000 states have call predecessors, (12184), 12184 states have call successors, (12184) [2022-07-20 03:41:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45934 states to 45934 states and 63370 transitions. [2022-07-20 03:41:12,053 INFO L78 Accepts]: Start accepts. Automaton has 45934 states and 63370 transitions. Word has length 338 [2022-07-20 03:41:12,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:41:12,054 INFO L495 AbstractCegarLoop]: Abstraction has 45934 states and 63370 transitions. [2022-07-20 03:41:12,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.714285714285714) internal successors, (141), 20 states have internal predecessors, (141), 6 states have call successors, (47), 3 states have call predecessors, (47), 8 states have return successors, (47), 7 states have call predecessors, (47), 6 states have call successors, (47) [2022-07-20 03:41:12,054 INFO L276 IsEmpty]: Start isEmpty. Operand 45934 states and 63370 transitions. [2022-07-20 03:41:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-20 03:41:12,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:41:12,092 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 03:41:12,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 03:41:12,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:41:12,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:41:12,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:41:12,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2131180950, now seen corresponding path program 1 times [2022-07-20 03:41:12,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:41:12,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118541233] [2022-07-20 03:41:12,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:41:12,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:41:12,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:41:12,300 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:41:12,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 03:41:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:41:14,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:41:14,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:41:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2022-07-20 03:41:14,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:41:14,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:41:14,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118541233] [2022-07-20 03:41:14,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118541233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:41:14,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:41:14,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:41:14,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289480913] [2022-07-20 03:41:14,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:41:14,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:41:14,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:41:14,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:41:14,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:41:14,639 INFO L87 Difference]: Start difference. First operand 45934 states and 63370 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 03:41:16,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:41:16,733 INFO L93 Difference]: Finished difference Result 104683 states and 144443 transitions. [2022-07-20 03:41:16,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:41:16,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 346 [2022-07-20 03:41:16,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:41:17,140 INFO L225 Difference]: With dead ends: 104683 [2022-07-20 03:41:17,141 INFO L226 Difference]: Without dead ends: 58764 [2022-07-20 03:41:17,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:41:17,278 INFO L413 NwaCegarLoop]: 8084 mSDtfsCounter, 3977 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 12164 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:41:17,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3977 Valid, 12164 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 03:41:17,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58764 states. [2022-07-20 03:41:18,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58764 to 45934. [2022-07-20 03:41:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45934 states, 31139 states have (on average 1.2524808118436688) internal successors, (39001), 31737 states have internal predecessors, (39001), 12184 states have call successors, (12184), 2610 states have call predecessors, (12184), 2610 states have return successors, (12184), 12000 states have call predecessors, (12184), 12184 states have call successors, (12184) [2022-07-20 03:41:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45934 states to 45934 states and 63369 transitions. [2022-07-20 03:41:19,137 INFO L78 Accepts]: Start accepts. Automaton has 45934 states and 63369 transitions. Word has length 346 [2022-07-20 03:41:19,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:41:19,138 INFO L495 AbstractCegarLoop]: Abstraction has 45934 states and 63369 transitions. [2022-07-20 03:41:19,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 03:41:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 45934 states and 63369 transitions. [2022-07-20 03:41:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-20 03:41:19,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:41:19,160 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 16, 16, 16, 16, 16, 16, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 03:41:19,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-20 03:41:19,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:41:19,361 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:41:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:41:19,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1923546600, now seen corresponding path program 1 times [2022-07-20 03:41:19,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:41:19,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577057494] [2022-07-20 03:41:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:41:19,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:41:19,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:41:19,367 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:41:19,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 03:41:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:41:21,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:41:21,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:41:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2022-07-20 03:41:21,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:41:21,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:41:21,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577057494] [2022-07-20 03:41:21,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577057494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:41:21,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:41:21,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:41:21,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858907678] [2022-07-20 03:41:21,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:41:21,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:41:21,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:41:21,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:41:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:41:21,968 INFO L87 Difference]: Start difference. First operand 45934 states and 63369 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 03:41:24,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:41:24,428 INFO L93 Difference]: Finished difference Result 112097 states and 154692 transitions. [2022-07-20 03:41:24,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:41:24,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 346 [2022-07-20 03:41:24,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:41:24,765 INFO L225 Difference]: With dead ends: 112097 [2022-07-20 03:41:24,765 INFO L226 Difference]: Without dead ends: 68539 [2022-07-20 03:41:24,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:41:24,919 INFO L413 NwaCegarLoop]: 8024 mSDtfsCounter, 3917 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3917 SdHoareTripleChecker+Valid, 12075 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:41:24,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3917 Valid, 12075 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 03:41:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68539 states. [2022-07-20 03:41:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68539 to 68531. [2022-07-20 03:41:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68531 states, 46454 states have (on average 1.2518620570887329) internal successors, (58154), 47354 states have internal predecessors, (58154), 18175 states have call successors, (18175), 3901 states have call predecessors, (18175), 3901 states have return successors, (18175), 17896 states have call predecessors, (18175), 18175 states have call successors, (18175) [2022-07-20 03:41:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68531 states to 68531 states and 94504 transitions. [2022-07-20 03:41:27,843 INFO L78 Accepts]: Start accepts. Automaton has 68531 states and 94504 transitions. Word has length 346 [2022-07-20 03:41:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:41:27,844 INFO L495 AbstractCegarLoop]: Abstraction has 68531 states and 94504 transitions. [2022-07-20 03:41:27,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 03:41:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 68531 states and 94504 transitions. [2022-07-20 03:41:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-20 03:41:27,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:41:27,875 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 16, 16, 16, 16, 16, 16, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:41:27,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 03:41:28,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:41:28,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:41:28,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:41:28,078 INFO L85 PathProgramCache]: Analyzing trace with hash -167582049, now seen corresponding path program 1 times [2022-07-20 03:41:28,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:41:28,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128907226] [2022-07-20 03:41:28,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:41:28,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:41:28,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:41:28,082 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:41:28,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 03:41:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:41:30,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:41:30,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:41:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2022-07-20 03:41:30,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:41:30,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:41:30,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128907226] [2022-07-20 03:41:30,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128907226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:41:30,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:41:30,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:41:30,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967065732] [2022-07-20 03:41:30,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:41:30,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:41:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:41:30,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:41:30,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:41:30,779 INFO L87 Difference]: Start difference. First operand 68531 states and 94504 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 03:41:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:41:33,890 INFO L93 Difference]: Finished difference Result 156117 states and 215290 transitions. [2022-07-20 03:41:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:41:33,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 363 [2022-07-20 03:41:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:41:34,598 INFO L225 Difference]: With dead ends: 156117 [2022-07-20 03:41:34,598 INFO L226 Difference]: Without dead ends: 87603 [2022-07-20 03:41:34,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:41:34,792 INFO L413 NwaCegarLoop]: 7476 mSDtfsCounter, 3370 mSDsluCounter, 4035 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 11511 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:41:34,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 11511 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 03:41:34,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87603 states. [2022-07-20 03:41:37,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87603 to 87598. [2022-07-20 03:41:37,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87598 states, 59388 states have (on average 1.251246042971644) internal successors, (74309), 60535 states have internal predecessors, (74309), 23201 states have call successors, (23201), 5008 states have call predecessors, (23201), 5008 states have return successors, (23201), 22843 states have call predecessors, (23201), 23201 states have call successors, (23201) [2022-07-20 03:41:38,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87598 states to 87598 states and 120711 transitions. [2022-07-20 03:41:38,604 INFO L78 Accepts]: Start accepts. Automaton has 87598 states and 120711 transitions. Word has length 363 [2022-07-20 03:41:38,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:41:38,605 INFO L495 AbstractCegarLoop]: Abstraction has 87598 states and 120711 transitions. [2022-07-20 03:41:38,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 03:41:38,606 INFO L276 IsEmpty]: Start isEmpty. Operand 87598 states and 120711 transitions. [2022-07-20 03:41:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2022-07-20 03:41:38,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:41:38,648 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 16, 16, 16, 16, 16, 16, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:41:38,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 03:41:38,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:41:38,864 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 03:41:38,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:41:38,864 INFO L85 PathProgramCache]: Analyzing trace with hash 725904289, now seen corresponding path program 1 times [2022-07-20 03:41:38,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:41:38,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799473091] [2022-07-20 03:41:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:41:38,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:41:38,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:41:38,868 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:41:38,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 03:41:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:41:41,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:41:41,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:41:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-07-20 03:41:44,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:41:44,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:41:44,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799473091] [2022-07-20 03:41:44,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799473091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:41:44,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:41:44,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:41:44,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031546135] [2022-07-20 03:41:44,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:41:44,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:41:44,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:41:44,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:41:44,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:41:44,396 INFO L87 Difference]: Start difference. First operand 87598 states and 120711 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-07-20 03:41:46,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:41:46,866 INFO L93 Difference]: Finished difference Result 87634 states and 120750 transitions. [2022-07-20 03:41:46,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 03:41:46,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 363 [2022-07-20 03:41:46,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:41:46,873 INFO L225 Difference]: With dead ends: 87634 [2022-07-20 03:41:46,873 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 03:41:47,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 03:41:47,395 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 3933 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3933 SdHoareTripleChecker+Valid, 8194 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:41:47,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3933 Valid, 8194 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 03:41:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 03:41:47,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 03:41:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 03:41:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 03:41:47,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 363 [2022-07-20 03:41:47,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:41:47,431 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 03:41:47,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-07-20 03:41:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 03:41:47,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 03:41:47,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-20 03:41:47,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-20 03:41:47,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 03:41:47,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:41:47,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.