./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:20:03,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:20:03,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:20:03,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:20:03,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:20:03,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:20:03,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:20:03,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:20:03,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:20:03,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:20:03,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:20:03,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:20:03,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:20:03,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:20:03,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:20:03,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:20:03,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:20:03,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:20:03,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:20:03,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:20:03,454 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:20:03,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:20:03,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:20:03,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:20:03,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:20:03,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:20:03,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:20:03,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:20:03,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:20:03,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:20:03,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:20:03,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:20:03,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:20:03,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:20:03,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:20:03,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:20:03,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:20:03,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:20:03,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:20:03,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:20:03,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:20:03,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:20:03,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:20:03,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:20:03,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:20:03,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:20:03,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:20:03,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:20:03,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:20:03,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:20:03,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:20:03,511 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:20:03,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:20:03,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:20:03,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:20:03,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:20:03,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:20:03,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:20:03,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:20:03,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:20:03,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:20:03,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:20:03,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:20:03,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:20:03,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:20:03,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:20:03,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:20:03,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:20:03,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:20:03,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:20:03,516 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:20:03,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:20:03,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:20:03,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-07-20 01:20:03,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:20:03,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:20:03,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:20:03,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:20:03,787 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:20:03,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-20 01:20:03,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf40ce16d/369f07e788c74f50910eab00eb5e0ecf/FLAGebfd0c78d [2022-07-20 01:20:04,649 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:20:04,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-20 01:20:04,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf40ce16d/369f07e788c74f50910eab00eb5e0ecf/FLAGebfd0c78d [2022-07-20 01:20:05,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf40ce16d/369f07e788c74f50910eab00eb5e0ecf [2022-07-20 01:20:05,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:20:05,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:20:05,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:20:05,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:20:05,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:20:05,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:20:05" (1/1) ... [2022-07-20 01:20:05,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a573bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:05, skipping insertion in model container [2022-07-20 01:20:05,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:20:05" (1/1) ... [2022-07-20 01:20:05,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:20:05,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:20:06,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-20 01:20:07,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:20:07,121 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:20:07,417 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: cfgpmcsr = cfgpmcsr & 4294967039U [8330] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 01:20:07,426 INFO L158 Benchmark]: Toolchain (without parser) took 2245.05ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 74.4MB in the beginning and 86.0MB in the end (delta: -11.6MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-07-20 01:20:07,427 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 01:20:07,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2241.57ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 74.0MB in the beginning and 86.0MB in the end (delta: -12.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-07-20 01:20:07,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2241.57ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 74.0MB in the beginning and 86.0MB in the end (delta: -12.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8330] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8330]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:20:09,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:20:09,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:20:09,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:20:09,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:20:09,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:20:09,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:20:09,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:20:09,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:20:09,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:20:09,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:20:09,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:20:09,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:20:09,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:20:09,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:20:09,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:20:09,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:20:09,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:20:09,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:20:09,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:20:09,365 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:20:09,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:20:09,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:20:09,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:20:09,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:20:09,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:20:09,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:20:09,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:20:09,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:20:09,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:20:09,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:20:09,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:20:09,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:20:09,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:20:09,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:20:09,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:20:09,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:20:09,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:20:09,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:20:09,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:20:09,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:20:09,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:20:09,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 01:20:09,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:20:09,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:20:09,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:20:09,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:20:09,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:20:09,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:20:09,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:20:09,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:20:09,430 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:20:09,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:20:09,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:20:09,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:20:09,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:20:09,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:20:09,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 01:20:09,432 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 01:20:09,432 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 01:20:09,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:20:09,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:20:09,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:20:09,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:20:09,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:20:09,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:20:09,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:20:09,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:20:09,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:20:09,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:20:09,434 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 01:20:09,434 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 01:20:09,435 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:20:09,435 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:20:09,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:20:09,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 01:20:09,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2022-07-20 01:20:09,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:20:09,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:20:09,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:20:09,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:20:09,774 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:20:09,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-20 01:20:09,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c250c47/9dd0d67d90a24052899cca531404c9e5/FLAG48e7e9cc2 [2022-07-20 01:20:10,670 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:20:10,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-20 01:20:10,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c250c47/9dd0d67d90a24052899cca531404c9e5/FLAG48e7e9cc2 [2022-07-20 01:20:11,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c250c47/9dd0d67d90a24052899cca531404c9e5 [2022-07-20 01:20:11,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:20:11,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:20:11,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:20:11,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:20:11,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:20:11,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:20:11" (1/1) ... [2022-07-20 01:20:11,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a5751f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:11, skipping insertion in model container [2022-07-20 01:20:11,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:20:11" (1/1) ... [2022-07-20 01:20:11,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:20:11,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:20:13,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-20 01:20:13,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:20:13,213 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 01:20:13,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:20:13,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-20 01:20:13,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:20:13,594 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:20:13,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2022-07-20 01:20:13,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:20:14,036 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:20:14,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14 WrapperNode [2022-07-20 01:20:14,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:20:14,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:20:14,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:20:14,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:20:14,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,348 INFO L137 Inliner]: procedures = 283, calls = 1587, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 4146 [2022-07-20 01:20:14,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:20:14,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:20:14,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:20:14,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:20:14,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:20:14,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:20:14,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:20:14,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:20:14,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (1/1) ... [2022-07-20 01:20:14,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:20:14,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:20:14,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 01:20:14,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 01:20:14,703 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-20 01:20:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-20 01:20:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 01:20:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 01:20:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-20 01:20:14,704 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-20 01:20:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2022-07-20 01:20:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2022-07-20 01:20:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 01:20:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 01:20:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 01:20:14,705 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 01:20:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:20:14,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:20:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:20:14,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:20:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-20 01:20:14,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-20 01:20:14,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 01:20:14,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 01:20:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 01:20:14,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 01:20:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 01:20:14,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 01:20:14,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:20:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:20:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-20 01:20:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-20 01:20:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:20:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:20:14,708 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 01:20:14,708 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 01:20:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-20 01:20:14,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-20 01:20:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 01:20:14,709 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 01:20:14,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-20 01:20:14,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-20 01:20:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-20 01:20:14,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-20 01:20:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-20 01:20:14,710 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-20 01:20:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:20:14,710 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:20:14,710 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-20 01:20:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-20 01:20:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 01:20:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 01:20:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 01:20:14,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 01:20:14,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 01:20:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 01:20:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-20 01:20:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-20 01:20:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 01:20:14,712 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 01:20:14,712 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-20 01:20:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-20 01:20:14,713 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-20 01:20:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-20 01:20:14,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:20:14,713 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 01:20:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 01:20:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-20 01:20:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-20 01:20:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:20:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 01:20:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 01:20:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-20 01:20:14,714 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-20 01:20:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 01:20:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 01:20:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-20 01:20:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-20 01:20:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 01:20:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 01:20:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 01:20:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 01:20:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-20 01:20:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-20 01:20:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-20 01:20:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-20 01:20:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 01:20:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 01:20:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-20 01:20:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-20 01:20:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-20 01:20:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-20 01:20:14,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 01:20:14,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 01:20:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 01:20:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 01:20:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 01:20:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 01:20:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:20:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:20:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 01:20:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 01:20:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 01:20:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-20 01:20:14,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-20 01:20:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 01:20:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-20 01:20:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-20 01:20:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 01:20:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 01:20:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-20 01:20:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-20 01:20:14,720 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 01:20:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 01:20:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-20 01:20:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-20 01:20:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-20 01:20:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-20 01:20:14,721 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 01:20:14,721 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 01:20:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-20 01:20:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-20 01:20:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-20 01:20:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-20 01:20:14,722 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-20 01:20:14,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-20 01:20:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-20 01:20:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-20 01:20:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 01:20:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 01:20:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 01:20:14,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 01:20:14,723 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-20 01:20:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-20 01:20:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 01:20:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 01:20:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:20:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:20:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 01:20:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 01:20:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-07-20 01:20:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-07-20 01:20:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 01:20:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 01:20:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-07-20 01:20:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-07-20 01:20:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-20 01:20:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-20 01:20:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-20 01:20:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-20 01:20:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:20:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:20:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-20 01:20:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-20 01:20:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:20:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:20:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-07-20 01:20:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-07-20 01:20:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:20:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-20 01:20:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-20 01:20:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 01:20:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 01:20:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-07-20 01:20:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-07-20 01:20:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:20:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-20 01:20:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-20 01:20:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:20:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-20 01:20:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-20 01:20:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-20 01:20:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-20 01:20:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-20 01:20:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-20 01:20:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-20 01:20:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-20 01:20:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2022-07-20 01:20:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2022-07-20 01:20:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-20 01:20:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-20 01:20:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-20 01:20:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-20 01:20:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-07-20 01:20:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-07-20 01:20:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-20 01:20:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-20 01:20:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-20 01:20:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-20 01:20:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:20:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:20:15,553 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:20:15,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:20:15,730 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:20:44,419 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:20:44,433 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:20:44,433 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 01:20:44,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:20:44 BoogieIcfgContainer [2022-07-20 01:20:44,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:20:44,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:20:44,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:20:44,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:20:44,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:20:11" (1/3) ... [2022-07-20 01:20:44,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35186933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:20:44, skipping insertion in model container [2022-07-20 01:20:44,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:20:14" (2/3) ... [2022-07-20 01:20:44,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35186933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:20:44, skipping insertion in model container [2022-07-20 01:20:44,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:20:44" (3/3) ... [2022-07-20 01:20:44,444 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2022-07-20 01:20:44,457 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:20:44,457 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:20:44,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:20:44,549 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@5f9549d6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3d466ed5 [2022-07-20 01:20:44,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:20:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2022-07-20 01:20:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-20 01:20:44,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:44,598 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:20:44,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:44,603 INFO L85 PathProgramCache]: Analyzing trace with hash -276937392, now seen corresponding path program 1 times [2022-07-20 01:20:44,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:44,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481039002] [2022-07-20 01:20:44,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:44,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:44,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:44,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:44,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 01:20:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:46,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 01:20:46,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-07-20 01:20:46,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:46,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:46,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481039002] [2022-07-20 01:20:46,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481039002] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:46,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:46,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:20:46,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265641978] [2022-07-20 01:20:46,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:46,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 01:20:46,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:46,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 01:20:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 01:20:46,364 INFO L87 Difference]: Start difference. First operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:20:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:46,652 INFO L93 Difference]: Finished difference Result 3411 states and 4941 transitions. [2022-07-20 01:20:46,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 01:20:46,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2022-07-20 01:20:46,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:46,688 INFO L225 Difference]: With dead ends: 3411 [2022-07-20 01:20:46,688 INFO L226 Difference]: Without dead ends: 1687 [2022-07-20 01:20:46,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 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 01:20:46,708 INFO L413 NwaCegarLoop]: 2437 mSDtfsCounter, 3 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7302 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:46,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7302 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:20:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-07-20 01:20:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-07-20 01:20:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1166 states have (on average 1.316466552315609) internal successors, (1535), 1181 states have internal predecessors, (1535), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-07-20 01:20:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2412 transitions. [2022-07-20 01:20:46,883 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2412 transitions. Word has length 178 [2022-07-20 01:20:46,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:46,886 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2412 transitions. [2022-07-20 01:20:46,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:20:46,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2412 transitions. [2022-07-20 01:20:46,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-20 01:20:46,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:46,900 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 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] [2022-07-20 01:20:46,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:47,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:47,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:47,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1058624020, now seen corresponding path program 1 times [2022-07-20 01:20:47,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:47,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823542551] [2022-07-20 01:20:47,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:47,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:47,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:47,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:47,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 01:20:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:48,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-20 01:20:48,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-20 01:20:48,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:20:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-07-20 01:20:49,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:49,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823542551] [2022-07-20 01:20:49,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823542551] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:20:49,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:20:49,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-20 01:20:49,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109182228] [2022-07-20 01:20:49,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:20:49,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:20:49,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:49,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:20:49,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:20:49,036 INFO L87 Difference]: Start difference. First operand 1687 states and 2412 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 01:20:49,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:49,456 INFO L93 Difference]: Finished difference Result 3367 states and 4819 transitions. [2022-07-20 01:20:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-20 01:20:49,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 182 [2022-07-20 01:20:49,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:49,468 INFO L225 Difference]: With dead ends: 3367 [2022-07-20 01:20:49,468 INFO L226 Difference]: Without dead ends: 1690 [2022-07-20 01:20:49,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:20:49,475 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 16 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:49,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7223 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:20:49,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-07-20 01:20:49,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1690. [2022-07-20 01:20:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1169 states have (on average 1.3156544054747648) internal successors, (1538), 1184 states have internal predecessors, (1538), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2022-07-20 01:20:49,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2415 transitions. [2022-07-20 01:20:49,537 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2415 transitions. Word has length 182 [2022-07-20 01:20:49,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:49,538 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2415 transitions. [2022-07-20 01:20:49,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 01:20:49,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2415 transitions. [2022-07-20 01:20:49,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-20 01:20:49,543 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:49,544 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:20:49,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:49,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:49,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:49,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:49,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1116492112, now seen corresponding path program 2 times [2022-07-20 01:20:49,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:49,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483780270] [2022-07-20 01:20:49,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:20:49,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:49,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:49,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:49,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 01:20:50,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 01:20:50,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:20:50,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:20:50,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:51,528 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:20:51,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:51,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:51,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483780270] [2022-07-20 01:20:51,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483780270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:51,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:51,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:20:51,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459612465] [2022-07-20 01:20:51,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:51,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:20:51,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:51,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:20:51,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:20:51,530 INFO L87 Difference]: Start difference. First operand 1690 states and 2415 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:20:51,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:51,850 INFO L93 Difference]: Finished difference Result 5013 states and 7171 transitions. [2022-07-20 01:20:51,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:20:51,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 194 [2022-07-20 01:20:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:51,876 INFO L225 Difference]: With dead ends: 5013 [2022-07-20 01:20:51,876 INFO L226 Difference]: Without dead ends: 3355 [2022-07-20 01:20:51,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:20:51,888 INFO L413 NwaCegarLoop]: 2847 mSDtfsCounter, 2357 mSDsluCounter, 8051 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 10898 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:51,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 10898 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:20:51,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-07-20 01:20:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3342. [2022-07-20 01:20:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 2312 states have (on average 1.3166089965397925) internal successors, (3044), 2346 states have internal predecessors, (3044), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2022-07-20 01:20:52,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4777 transitions. [2022-07-20 01:20:52,092 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4777 transitions. Word has length 194 [2022-07-20 01:20:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:52,093 INFO L495 AbstractCegarLoop]: Abstraction has 3342 states and 4777 transitions. [2022-07-20 01:20:52,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:20:52,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4777 transitions. [2022-07-20 01:20:52,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-20 01:20:52,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:52,103 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:20:52,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:52,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:52,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:52,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:52,328 INFO L85 PathProgramCache]: Analyzing trace with hash -764921439, now seen corresponding path program 1 times [2022-07-20 01:20:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:52,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141797719] [2022-07-20 01:20:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:52,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:52,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:52,334 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:52,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 01:20:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:54,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:20:54,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:20:55,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:55,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:55,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141797719] [2022-07-20 01:20:55,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141797719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:55,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:55,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:20:55,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503805350] [2022-07-20 01:20:55,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:55,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:20:55,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:55,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:20:55,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:20:55,016 INFO L87 Difference]: Start difference. First operand 3342 states and 4777 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:20:55,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:55,353 INFO L93 Difference]: Finished difference Result 9982 states and 14275 transitions. [2022-07-20 01:20:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:20:55,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 195 [2022-07-20 01:20:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:55,402 INFO L225 Difference]: With dead ends: 9982 [2022-07-20 01:20:55,403 INFO L226 Difference]: Without dead ends: 6672 [2022-07-20 01:20:55,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:20:55,430 INFO L413 NwaCegarLoop]: 2855 mSDtfsCounter, 2356 mSDsluCounter, 8065 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 10920 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:55,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 10920 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:20:55,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2022-07-20 01:20:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 6651. [2022-07-20 01:20:55,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 4604 states have (on average 1.3166811468288444) internal successors, (6062), 4671 states have internal predecessors, (6062), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2022-07-20 01:20:55,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9505 transitions. [2022-07-20 01:20:55,801 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9505 transitions. Word has length 195 [2022-07-20 01:20:55,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:20:55,803 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 9505 transitions. [2022-07-20 01:20:55,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:20:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9505 transitions. [2022-07-20 01:20:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-20 01:20:55,813 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:20:55,813 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:20:55,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 01:20:56,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:20:56,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:20:56,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:20:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash -61131277, now seen corresponding path program 1 times [2022-07-20 01:20:56,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:20:56,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109545769] [2022-07-20 01:20:56,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:20:56,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:20:56,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:20:56,040 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:20:56,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 01:20:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:20:58,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:20:58,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:20:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:20:58,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:20:58,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:20:58,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109545769] [2022-07-20 01:20:58,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109545769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:20:58,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:20:58,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:20:58,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220208168] [2022-07-20 01:20:58,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:20:58,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:20:58,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:20:58,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:20:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:20:58,593 INFO L87 Difference]: Start difference. First operand 6651 states and 9505 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:20:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:20:59,050 INFO L93 Difference]: Finished difference Result 19932 states and 28489 transitions. [2022-07-20 01:20:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:20:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 196 [2022-07-20 01:20:59,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:20:59,165 INFO L225 Difference]: With dead ends: 19932 [2022-07-20 01:20:59,166 INFO L226 Difference]: Without dead ends: 13313 [2022-07-20 01:20:59,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:20:59,213 INFO L413 NwaCegarLoop]: 2836 mSDtfsCounter, 2357 mSDsluCounter, 8027 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 10863 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:20:59,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 10863 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:20:59,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13313 states. [2022-07-20 01:20:59,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13313 to 13274. [2022-07-20 01:20:59,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13274 states, 9193 states have (on average 1.3164364190144675) internal successors, (12102), 9325 states have internal predecessors, (12102), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2022-07-20 01:21:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13274 states to 13274 states and 18963 transitions. [2022-07-20 01:21:00,043 INFO L78 Accepts]: Start accepts. Automaton has 13274 states and 18963 transitions. Word has length 196 [2022-07-20 01:21:00,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:21:00,044 INFO L495 AbstractCegarLoop]: Abstraction has 13274 states and 18963 transitions. [2022-07-20 01:21:00,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:21:00,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13274 states and 18963 transitions. [2022-07-20 01:21:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-20 01:21:00,053 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:21:00,053 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:21:00,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 01:21:00,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:21:00,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:21:00,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:21:00,273 INFO L85 PathProgramCache]: Analyzing trace with hash -820404636, now seen corresponding path program 1 times [2022-07-20 01:21:00,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:21:00,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282232347] [2022-07-20 01:21:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:21:00,275 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:21:00,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:21:00,276 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:21:00,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 01:21:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:21:02,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 01:21:02,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:21:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:21:02,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:21:02,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:21:02,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282232347] [2022-07-20 01:21:02,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282232347] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:21:02,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:21:02,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 01:21:02,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833134784] [2022-07-20 01:21:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:21:02,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:21:02,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:21:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:21:02,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:21:02,963 INFO L87 Difference]: Start difference. First operand 13274 states and 18963 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:21:03,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:21:03,877 INFO L93 Difference]: Finished difference Result 39832 states and 56901 transitions. [2022-07-20 01:21:03,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:21:03,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 197 [2022-07-20 01:21:03,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:21:04,048 INFO L225 Difference]: With dead ends: 39832 [2022-07-20 01:21:04,049 INFO L226 Difference]: Without dead ends: 26590 [2022-07-20 01:21:04,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:21:04,142 INFO L413 NwaCegarLoop]: 2836 mSDtfsCounter, 2358 mSDsluCounter, 8027 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 10863 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:21:04,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 10863 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:21:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26590 states. [2022-07-20 01:21:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26590 to 26518. [2022-07-20 01:21:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26518 states, 18371 states have (on average 1.315987153666104) internal successors, (24176), 18631 states have internal predecessors, (24176), 6846 states have call successors, (6846), 1301 states have call predecessors, (6846), 1300 states have return successors, (6845), 6761 states have call predecessors, (6845), 6845 states have call successors, (6845) [2022-07-20 01:21:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26518 states to 26518 states and 37867 transitions. [2022-07-20 01:21:05,596 INFO L78 Accepts]: Start accepts. Automaton has 26518 states and 37867 transitions. Word has length 197 [2022-07-20 01:21:05,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:21:05,597 INFO L495 AbstractCegarLoop]: Abstraction has 26518 states and 37867 transitions. [2022-07-20 01:21:05,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 01:21:05,597 INFO L276 IsEmpty]: Start isEmpty. Operand 26518 states and 37867 transitions. [2022-07-20 01:21:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-20 01:21:05,607 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:21:05,607 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:21:05,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 01:21:05,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:21:05,827 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:21:05,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:21:05,828 INFO L85 PathProgramCache]: Analyzing trace with hash -656198339, now seen corresponding path program 1 times [2022-07-20 01:21:05,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:21:05,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460216634] [2022-07-20 01:21:05,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:21:05,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:21:05,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:21:05,896 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:21:05,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 01:21:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:21:08,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 01:21:08,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:21:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-20 01:21:08,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:21:08,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:21:08,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460216634] [2022-07-20 01:21:08,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460216634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:21:08,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:21:08,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 01:21:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636187523] [2022-07-20 01:21:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:21:08,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 01:21:08,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:21:08,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 01:21:08,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:21:08,136 INFO L87 Difference]: Start difference. First operand 26518 states and 37867 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:21:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:21:09,556 INFO L93 Difference]: Finished difference Result 73720 states and 104866 transitions. [2022-07-20 01:21:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 01:21:09,557 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), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 209 [2022-07-20 01:21:09,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:21:09,854 INFO L225 Difference]: With dead ends: 73720 [2022-07-20 01:21:09,854 INFO L226 Difference]: Without dead ends: 47234 [2022-07-20 01:21:10,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 01:21:10,012 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 1894 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:21:10,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1894 Valid, 4987 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 01:21:10,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47234 states. [2022-07-20 01:21:12,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47234 to 47151. [2022-07-20 01:21:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47151 states, 32728 states have (on average 1.3129430457100952) internal successors, (42970), 33262 states have internal predecessors, (42970), 11987 states have call successors, (11987), 2452 states have call predecessors, (11987), 2435 states have return successors, (11986), 11754 states have call predecessors, (11986), 11986 states have call successors, (11986) [2022-07-20 01:21:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47151 states to 47151 states and 66943 transitions. [2022-07-20 01:21:13,110 INFO L78 Accepts]: Start accepts. Automaton has 47151 states and 66943 transitions. Word has length 209 [2022-07-20 01:21:13,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:21:13,114 INFO L495 AbstractCegarLoop]: Abstraction has 47151 states and 66943 transitions. [2022-07-20 01:21:13,114 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), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 01:21:13,114 INFO L276 IsEmpty]: Start isEmpty. Operand 47151 states and 66943 transitions. [2022-07-20 01:21:13,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-20 01:21:13,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:21:13,121 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:21:13,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 01:21:13,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:21:13,343 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:21:13,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:21:13,344 INFO L85 PathProgramCache]: Analyzing trace with hash 747111617, now seen corresponding path program 1 times [2022-07-20 01:21:13,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:21:13,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300671775] [2022-07-20 01:21:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:21:13,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:21:13,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:21:13,349 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:21:13,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 01:21:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:21:15,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1666 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:21:15,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:21:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-20 01:21:16,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:21:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-07-20 01:21:16,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:21:16,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300671775] [2022-07-20 01:21:16,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300671775] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 01:21:16,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:21:16,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-07-20 01:21:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856640951] [2022-07-20 01:21:16,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:21:16,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:21:16,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:21:16,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:21:16,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-20 01:21:16,650 INFO L87 Difference]: Start difference. First operand 47151 states and 66943 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 01:21:29,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:21:29,771 INFO L93 Difference]: Finished difference Result 127795 states and 182940 transitions. [2022-07-20 01:21:29,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-20 01:21:29,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 207 [2022-07-20 01:21:29,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:21:30,620 INFO L225 Difference]: With dead ends: 127795 [2022-07-20 01:21:30,620 INFO L226 Difference]: Without dead ends: 80676 [2022-07-20 01:21:30,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-20 01:21:30,827 INFO L413 NwaCegarLoop]: 4210 mSDtfsCounter, 3882 mSDsluCounter, 19639 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 23849 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-20 01:21:30,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 23849 Invalid, 3583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [422 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-07-20 01:21:30,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80676 states. [2022-07-20 01:21:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80676 to 70461. [2022-07-20 01:21:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70461 states, 48900 states have (on average 1.3134560327198364) internal successors, (64228), 49688 states have internal predecessors, (64228), 17931 states have call successors, (17931), 3654 states have call predecessors, (17931), 3629 states have return successors, (17930), 17594 states have call predecessors, (17930), 17930 states have call successors, (17930) [2022-07-20 01:21:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70461 states to 70461 states and 100089 transitions. [2022-07-20 01:21:34,688 INFO L78 Accepts]: Start accepts. Automaton has 70461 states and 100089 transitions. Word has length 207 [2022-07-20 01:21:34,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:21:34,689 INFO L495 AbstractCegarLoop]: Abstraction has 70461 states and 100089 transitions. [2022-07-20 01:21:34,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-20 01:21:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand 70461 states and 100089 transitions. [2022-07-20 01:21:34,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-20 01:21:34,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:21:34,700 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:21:34,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 01:21:34,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:21:34,916 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:21:34,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:21:34,916 INFO L85 PathProgramCache]: Analyzing trace with hash -12337195, now seen corresponding path program 1 times [2022-07-20 01:21:34,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:21:34,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432246530] [2022-07-20 01:21:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:21:34,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:21:34,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:21:34,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:21:34,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 01:21:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:21:37,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:21:37,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:21:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:21:38,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:21:38,705 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:21:38,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:21:38,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432246530] [2022-07-20 01:21:38,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432246530] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:21:38,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:21:38,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-20 01:21:38,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094146327] [2022-07-20 01:21:38,706 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:21:38,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 01:21:38,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:21:38,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 01:21:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-20 01:21:38,708 INFO L87 Difference]: Start difference. First operand 70461 states and 100089 transitions. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 01:22:10,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:22:10,545 INFO L93 Difference]: Finished difference Result 162681 states and 232520 transitions. [2022-07-20 01:22:10,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-20 01:22:10,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 208 [2022-07-20 01:22:10,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:22:11,320 INFO L225 Difference]: With dead ends: 162681 [2022-07-20 01:22:11,320 INFO L226 Difference]: Without dead ends: 92252 [2022-07-20 01:22:11,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-20 01:22:11,642 INFO L413 NwaCegarLoop]: 6252 mSDtfsCounter, 10192 mSDsluCounter, 28073 mSDsCounter, 0 mSdLazyCounter, 8117 mSolverCounterSat, 3087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10403 SdHoareTripleChecker+Valid, 34325 SdHoareTripleChecker+Invalid, 11204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3087 IncrementalHoareTripleChecker+Valid, 8117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:22:11,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10403 Valid, 34325 Invalid, 11204 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3087 Valid, 8117 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time] [2022-07-20 01:22:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92252 states. [2022-07-20 01:22:14,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92252 to 82067. [2022-07-20 01:22:14,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82067 states, 56944 states have (on average 1.313395616746277) internal successors, (74790), 57870 states have internal predecessors, (74790), 20891 states have call successors, (20891), 4260 states have call predecessors, (20891), 4231 states have return successors, (20898), 20490 states have call predecessors, (20898), 20890 states have call successors, (20898) [2022-07-20 01:22:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82067 states to 82067 states and 116579 transitions. [2022-07-20 01:22:15,243 INFO L78 Accepts]: Start accepts. Automaton has 82067 states and 116579 transitions. Word has length 208 [2022-07-20 01:22:15,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:22:15,244 INFO L495 AbstractCegarLoop]: Abstraction has 82067 states and 116579 transitions. [2022-07-20 01:22:15,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 9 states have internal predecessors, (99), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 01:22:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 82067 states and 116579 transitions. [2022-07-20 01:22:15,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-20 01:22:15,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:22:15,253 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:22:15,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 01:22:15,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:22:15,475 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:22:15,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:22:15,476 INFO L85 PathProgramCache]: Analyzing trace with hash -890851192, now seen corresponding path program 1 times [2022-07-20 01:22:15,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:22:15,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767569461] [2022-07-20 01:22:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:22:15,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:22:15,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:22:15,484 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:22:15,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 01:22:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:22:17,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:22:17,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:22:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:22:18,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:22:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:22:18,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:22:18,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767569461] [2022-07-20 01:22:18,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767569461] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:22:18,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:22:18,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-20 01:22:18,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14429407] [2022-07-20 01:22:18,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:22:18,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 01:22:18,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:22:18,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 01:22:18,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-20 01:22:18,936 INFO L87 Difference]: Start difference. First operand 82067 states and 116579 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 01:23:00,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:00,359 INFO L93 Difference]: Finished difference Result 185895 states and 265502 transitions. [2022-07-20 01:23:00,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-20 01:23:00,360 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 209 [2022-07-20 01:23:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:01,032 INFO L225 Difference]: With dead ends: 185895 [2022-07-20 01:23:01,033 INFO L226 Difference]: Without dead ends: 103860 [2022-07-20 01:23:01,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-20 01:23:01,556 INFO L413 NwaCegarLoop]: 6598 mSDtfsCounter, 9876 mSDsluCounter, 41986 mSDsCounter, 0 mSdLazyCounter, 13870 mSolverCounterSat, 3005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10087 SdHoareTripleChecker+Valid, 48584 SdHoareTripleChecker+Invalid, 16875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3005 IncrementalHoareTripleChecker+Valid, 13870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:01,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10087 Valid, 48584 Invalid, 16875 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3005 Valid, 13870 Invalid, 0 Unknown, 0 Unchecked, 36.5s Time] [2022-07-20 01:23:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103860 states. [2022-07-20 01:23:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103860 to 87957. [2022-07-20 01:23:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87957 states, 61032 states have (on average 1.3134257438720671) internal successors, (80161), 62030 states have internal predecessors, (80161), 22389 states have call successors, (22389), 4566 states have call predecessors, (22389), 4535 states have return successors, (22402), 21954 states have call predecessors, (22402), 22388 states have call successors, (22402) [2022-07-20 01:23:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87957 states to 87957 states and 124952 transitions. [2022-07-20 01:23:05,366 INFO L78 Accepts]: Start accepts. Automaton has 87957 states and 124952 transitions. Word has length 209 [2022-07-20 01:23:05,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:05,366 INFO L495 AbstractCegarLoop]: Abstraction has 87957 states and 124952 transitions. [2022-07-20 01:23:05,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 01:23:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand 87957 states and 124952 transitions. [2022-07-20 01:23:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-20 01:23:05,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:05,376 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2022-07-20 01:23:05,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-20 01:23:05,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:23:05,591 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:05,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:05,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1165418628, now seen corresponding path program 1 times [2022-07-20 01:23:05,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:23:05,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385679968] [2022-07-20 01:23:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:05,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:23:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:23:05,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:23:05,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 01:23:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:07,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 01:23:07,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:23:08,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:23:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-07-20 01:23:09,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:23:09,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385679968] [2022-07-20 01:23:09,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385679968] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:23:09,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:23:09,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-07-20 01:23:09,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667150000] [2022-07-20 01:23:09,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:23:09,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-20 01:23:09,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:23:09,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-20 01:23:09,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-20 01:23:09,008 INFO L87 Difference]: Start difference. First operand 87957 states and 124952 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 01:23:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:41,464 INFO L93 Difference]: Finished difference Result 197676 states and 282249 transitions. [2022-07-20 01:23:41,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-20 01:23:41,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 210 [2022-07-20 01:23:41,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:42,149 INFO L225 Difference]: With dead ends: 197676 [2022-07-20 01:23:42,149 INFO L226 Difference]: Without dead ends: 109751 [2022-07-20 01:23:42,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-07-20 01:23:42,649 INFO L413 NwaCegarLoop]: 6590 mSDtfsCounter, 9920 mSDsluCounter, 35137 mSDsCounter, 0 mSdLazyCounter, 9729 mSolverCounterSat, 3013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10131 SdHoareTripleChecker+Valid, 41727 SdHoareTripleChecker+Invalid, 12742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3013 IncrementalHoareTripleChecker+Valid, 9729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:42,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10131 Valid, 41727 Invalid, 12742 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3013 Valid, 9729 Invalid, 0 Unknown, 0 Unchecked, 27.1s Time] [2022-07-20 01:23:42,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109751 states. [2022-07-20 01:23:45,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109751 to 90903. [2022-07-20 01:23:45,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90903 states, 63076 states have (on average 1.3134472699600481) internal successors, (82847), 64111 states have internal predecessors, (82847), 23139 states have call successors, (23139), 4719 states have call predecessors, (23139), 4687 states have return successors, (23156), 22686 states have call predecessors, (23156), 23138 states have call successors, (23156) [2022-07-20 01:23:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90903 states to 90903 states and 129142 transitions. [2022-07-20 01:23:46,600 INFO L78 Accepts]: Start accepts. Automaton has 90903 states and 129142 transitions. Word has length 210 [2022-07-20 01:23:46,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:46,601 INFO L495 AbstractCegarLoop]: Abstraction has 90903 states and 129142 transitions. [2022-07-20 01:23:46,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 9 states have internal predecessors, (101), 4 states have call successors, (39), 4 states have call predecessors, (39), 5 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-20 01:23:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 90903 states and 129142 transitions. [2022-07-20 01:23:46,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-20 01:23:46,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:46,611 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-07-20 01:23:46,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 01:23:46,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 01:23:46,831 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:46,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1240656292, now seen corresponding path program 1 times [2022-07-20 01:23:46,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 01:23:46,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461326382] [2022-07-20 01:23:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:46,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 01:23:46,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 01:23:46,835 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 01:23:46,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 01:23:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:49,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-20 01:23:49,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:23:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-07-20 01:23:49,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:23:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-20 01:23:50,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 01:23:50,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461326382] [2022-07-20 01:23:50,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461326382] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:23:50,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 01:23:50,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2022-07-20 01:23:50,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735113032] [2022-07-20 01:23:50,404 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 01:23:50,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-20 01:23:50,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 01:23:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-20 01:23:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-20 01:23:50,405 INFO L87 Difference]: Start difference. First operand 90903 states and 129142 transitions. Second operand has 16 states, 16 states have (on average 6.75) internal successors, (108), 13 states have internal predecessors, (108), 4 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36)