./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.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 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:38:51,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:38:51,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:38:51,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:38:51,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:38:51,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:38:51,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:38:51,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:38:51,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:38:51,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:38:51,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:38:51,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:38:51,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:38:51,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:38:51,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:38:51,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:38:51,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:38:51,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:38:51,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:38:51,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:38:51,309 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:38:51,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:38:51,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:38:51,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:38:51,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:38:51,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:38:51,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:38:51,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:38:51,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:38:51,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:38:51,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:38:51,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:38:51,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:38:51,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:38:51,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:38:51,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:38:51,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:38:51,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:38:51,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:38:51,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:38:51,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:38:51,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:38:51,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:38:51,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:38:51,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:38:51,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:38:51,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:38:51,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:38:51,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:38:51,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:38:51,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:38:51,363 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:38:51,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:38:51,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:38:51,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:38:51,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:38:51,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:38:51,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:38:51,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:38:51,366 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:38:51,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:38:51,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:38:51,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:38:51,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:38:51,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:38:51,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:38:51,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:38:51,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:38:51,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:38:51,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:38:51,369 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:38:51,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:38:51,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:38:51,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2022-07-12 12:38:51,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:38:51,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:38:51,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:38:51,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:38:51,564 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:38:51,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-12 12:38:51,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ba0c97a/c633d6f7eec9497d93074d766f9f4ff9/FLAG218afee82 [2022-07-12 12:38:52,214 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:38:52,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-12 12:38:52,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ba0c97a/c633d6f7eec9497d93074d766f9f4ff9/FLAG218afee82 [2022-07-12 12:38:52,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ba0c97a/c633d6f7eec9497d93074d766f9f4ff9 [2022-07-12 12:38:52,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:38:52,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:38:52,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:38:52,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:38:52,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:38:52,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:38:52" (1/1) ... [2022-07-12 12:38:52,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba351a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:52, skipping insertion in model container [2022-07-12 12:38:52,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:38:52" (1/1) ... [2022-07-12 12:38:52,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:38:52,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:38:53,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-12 12:38:53,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:38:54,020 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:38:54,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-12 12:38:54,243 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: len = len & 4294967294U [10012] 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) [2022-07-12 12:38:54,248 INFO L158 Benchmark]: Toolchain (without parser) took 1604.78ms. Allocated memory was 107.0MB in the beginning and 192.9MB in the end (delta: 86.0MB). Free memory was 63.3MB in the beginning and 123.2MB in the end (delta: -59.8MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2022-07-12 12:38:54,249 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory was 64.1MB in the beginning and 64.0MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:38:54,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1602.17ms. Allocated memory was 107.0MB in the beginning and 192.9MB in the end (delta: 86.0MB). Free memory was 63.1MB in the beginning and 123.2MB in the end (delta: -60.0MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2022-07-12 12:38:54,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory was 64.1MB in the beginning and 64.0MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1602.17ms. Allocated memory was 107.0MB in the beginning and 192.9MB in the end (delta: 86.0MB). Free memory was 63.1MB in the beginning and 123.2MB in the end (delta: -60.0MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: len = len & 4294967294U [10012] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: len = len & 4294967294U [10012]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.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 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:38:55,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:38:55,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:38:55,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:38:55,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:38:55,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:38:55,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:38:55,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:38:55,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:38:55,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:38:55,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:38:55,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:38:55,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:38:55,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:38:55,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:38:55,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:38:55,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:38:55,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:38:55,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:38:55,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:38:55,789 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:38:55,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:38:55,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:38:55,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:38:55,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:38:55,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:38:55,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:38:55,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:38:55,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:38:55,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:38:55,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:38:55,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:38:55,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:38:55,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:38:55,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:38:55,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:38:55,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:38:55,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:38:55,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:38:55,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:38:55,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:38:55,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:38:55,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:38:55,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:38:55,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:38:55,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:38:55,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:38:55,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:38:55,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:38:55,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:38:55,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:38:55,837 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:38:55,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:38:55,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:38:55,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:38:55,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:38:55,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:38:55,838 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:38:55,838 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:38:55,838 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:38:55,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:38:55,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:38:55,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:38:55,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:38:55,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:38:55,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:38:55,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:38:55,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:38:55,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:38:55,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:38:55,840 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:38:55,840 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:38:55,840 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:38:55,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:38:55,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:38:55,841 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:38:55,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2022-07-12 12:38:56,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:38:56,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:38:56,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:38:56,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:38:56,120 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:38:56,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-12 12:38:56,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/482faea9e/bd1fc710f08549d9aa104888a33cd149/FLAG30c5ac022 [2022-07-12 12:38:56,793 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:38:56,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-12 12:38:56,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/482faea9e/bd1fc710f08549d9aa104888a33cd149/FLAG30c5ac022 [2022-07-12 12:38:57,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/482faea9e/bd1fc710f08549d9aa104888a33cd149 [2022-07-12 12:38:57,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:38:57,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:38:57,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:38:57,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:38:57,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:38:57,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:38:57" (1/1) ... [2022-07-12 12:38:57,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c3f7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:57, skipping insertion in model container [2022-07-12 12:38:57,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:38:57" (1/1) ... [2022-07-12 12:38:57,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:38:57,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:38:58,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-12 12:38:58,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:38:58,824 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:38:58,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:38:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-12 12:38:59,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:38:59,121 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:38:59,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2022-07-12 12:38:59,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:38:59,519 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:38:59,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59 WrapperNode [2022-07-12 12:38:59,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:38:59,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:38:59,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:38:59,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:38:59,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,769 INFO L137 Inliner]: procedures = 262, calls = 2608, calls flagged for inlining = 135, calls inlined = 132, statements flattened = 6145 [2022-07-12 12:38:59,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:38:59,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:38:59,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:38:59,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:38:59,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:38:59,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:38:59,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:38:59,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:38:59,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (1/1) ... [2022-07-12 12:38:59,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:38:59,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:38:59,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 12:39:00,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 12:39:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2022-07-12 12:39:00,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2022-07-12 12:39:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:39:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2022-07-12 12:39:00,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2022-07-12 12:39:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:39:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:39:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:39:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:39:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:39:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:39:00,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:39:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-12 12:39:00,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-12 12:39:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-07-12 12:39:00,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-07-12 12:39:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:39:00,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:39:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-07-12 12:39:00,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-07-12 12:39:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-07-12 12:39:00,025 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-07-12 12:39:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-12 12:39:00,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-12 12:39:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-12 12:39:00,026 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-12 12:39:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2022-07-12 12:39:00,026 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2022-07-12 12:39:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_map_pci_memory [2022-07-12 12:39:00,026 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_map_pci_memory [2022-07-12 12:39:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2022-07-12 12:39:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2022-07-12 12:39:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:39:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:39:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:39:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:39:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:39:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:39:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:39:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:39:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 12:39:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 12:39:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:39:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:39:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_process_event_ready [2022-07-12 12:39:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_process_event_ready [2022-07-12 12:39:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:39:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:39:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 12:39:00,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 12:39:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-12 12:39:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:39:00,030 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:39:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unmap_pci_memory [2022-07-12 12:39:00,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unmap_pci_memory [2022-07-12 12:39:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:39:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:39:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:39:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:39:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:39:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:39:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_clean_pcie_ring_buf [2022-07-12 12:39:00,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_clean_pcie_ring_buf [2022-07-12 12:39:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_dev_wakeup_delay [2022-07-12 12:39:00,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_dev_wakeup_delay [2022-07-12 12:39:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 12:39:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:39:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:39:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:39:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_ok_to_access_hw [2022-07-12 12:39:00,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_ok_to_access_hw [2022-07-12 12:39:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:39:00,033 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:39:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_DMA_ADDR [2022-07-12 12:39:00,033 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_DMA_ADDR [2022-07-12 12:39:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:39:00,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:39:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:39:00,034 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:39:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_resume [2022-07-12 12:39:00,034 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_resume [2022-07-12 12:39:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_txbd_ring [2022-07-12 12:39:00,035 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_txbd_ring [2022-07-12 12:39:00,035 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_suspend [2022-07-12 12:39:00,035 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_suspend [2022-07-12 12:39:00,035 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 12:39:00,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 12:39:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:39:00,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:39:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_enable_host_int [2022-07-12 12:39:00,036 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_enable_host_int [2022-07-12 12:39:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_disable_host_int [2022-07-12 12:39:00,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_disable_host_int [2022-07-12 12:39:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_not_full [2022-07-12 12:39:00,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_not_full [2022-07-12 12:39:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-07-12 12:39:00,037 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-07-12 12:39:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_evtbd_ring [2022-07-12 12:39:00,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_evtbd_ring [2022-07-12 12:39:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:39:00,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:39:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-12 12:39:00,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-12 12:39:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 12:39:00,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 12:39:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 12:39:00,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 12:39:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 12:39:00,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 12:39:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-12 12:39:00,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-12 12:39:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:39:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:39:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:39:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:39:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:39:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:39:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:39:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 12:39:00,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 12:39:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_remove [2022-07-12 12:39:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_remove [2022-07-12 12:39:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:39:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2022-07-12 12:39:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2022-07-12 12:39:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_rxbd_ring [2022-07-12 12:39:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_rxbd_ring [2022-07-12 12:39:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:39:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:39:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:39:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:39:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:39:00,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:39:00,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 12:39:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 12:39:00,049 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_PACB [2022-07-12 12:39:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_PACB [2022-07-12 12:39:00,049 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 12:39:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 12:39:00,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:39:00,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-12 12:39:00,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:39:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:39:00,050 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2022-07-12 12:39:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2022-07-12 12:39:00,050 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_empty [2022-07-12 12:39:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_empty [2022-07-12 12:39:00,754 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:39:00,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:39:07,649 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:39:48,654 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:39:48,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:39:48,667 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 12:39:48,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:39:48 BoogieIcfgContainer [2022-07-12 12:39:48,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:39:48,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:39:48,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:39:48,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:39:48,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:38:57" (1/3) ... [2022-07-12 12:39:48,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c45c214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:39:48, skipping insertion in model container [2022-07-12 12:39:48,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:38:59" (2/3) ... [2022-07-12 12:39:48,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c45c214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:39:48, skipping insertion in model container [2022-07-12 12:39:48,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:39:48" (3/3) ... [2022-07-12 12:39:48,674 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2022-07-12 12:39:48,683 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:39:48,683 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:39:48,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:39:48,735 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@5175cfad, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@592c23fe [2022-07-12 12:39:48,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:39:48,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 1562 states, 1189 states have (on average 1.4137931034482758) internal successors, (1681), 1210 states have internal predecessors, (1681), 315 states have call successors, (315), 57 states have call predecessors, (315), 56 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2022-07-12 12:39:48,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 12:39:48,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:39:48,757 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:39:48,757 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:39:48,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:39:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1790507018, now seen corresponding path program 1 times [2022-07-12 12:39:48,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:39:48,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930262249] [2022-07-12 12:39:48,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:39:48,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:39:48,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:39:48,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:39:48,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:39:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:39:49,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1381 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:39:49,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:39:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 12:39:49,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:39:49,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:39:49,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930262249] [2022-07-12 12:39:49,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930262249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:39:49,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:39:49,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:39:49,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242452482] [2022-07-12 12:39:49,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:39:49,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:39:49,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:39:49,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:39:49,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:39:49,898 INFO L87 Difference]: Start difference. First operand has 1562 states, 1189 states have (on average 1.4137931034482758) internal successors, (1681), 1210 states have internal predecessors, (1681), 315 states have call successors, (315), 57 states have call predecessors, (315), 56 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 12:39:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:39:50,633 INFO L93 Difference]: Finished difference Result 4627 states and 6891 transitions. [2022-07-12 12:39:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:39:50,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-07-12 12:39:50,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:39:50,664 INFO L225 Difference]: With dead ends: 4627 [2022-07-12 12:39:50,664 INFO L226 Difference]: Without dead ends: 3042 [2022-07-12 12:39:50,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:39:50,680 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 2242 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:39:50,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 4868 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 12:39:50,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2022-07-12 12:39:50,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3042. [2022-07-12 12:39:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2325 states have (on average 1.4055913978494623) internal successors, (3268), 2349 states have internal predecessors, (3268), 606 states have call successors, (606), 111 states have call predecessors, (606), 110 states have return successors, (605), 605 states have call predecessors, (605), 605 states have call successors, (605) [2022-07-12 12:39:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4479 transitions. [2022-07-12 12:39:50,898 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4479 transitions. Word has length 39 [2022-07-12 12:39:50,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:39:50,898 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4479 transitions. [2022-07-12 12:39:50,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-12 12:39:50,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4479 transitions. [2022-07-12 12:39:50,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-12 12:39:50,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:39:50,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:39:50,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:39:51,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:39:51,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:39:51,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:39:51,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1277499630, now seen corresponding path program 1 times [2022-07-12 12:39:51,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:39:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215483096] [2022-07-12 12:39:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:39:51,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:39:51,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:39:51,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:39:51,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:39:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:39:52,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 12:39:52,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:39:52,597 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 12:39:52,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:39:52,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:39:52,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215483096] [2022-07-12 12:39:52,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215483096] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:39:52,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:39:52,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:39:52,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527775490] [2022-07-12 12:39:52,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:39:52,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:39:52,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:39:52,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:39:52,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:39:52,600 INFO L87 Difference]: Start difference. First operand 3042 states and 4479 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 12:39:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:39:57,060 INFO L93 Difference]: Finished difference Result 6992 states and 10407 transitions. [2022-07-12 12:39:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:39:57,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-07-12 12:39:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:39:57,081 INFO L225 Difference]: With dead ends: 6992 [2022-07-12 12:39:57,081 INFO L226 Difference]: Without dead ends: 3960 [2022-07-12 12:39:57,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:39:57,093 INFO L413 NwaCegarLoop]: 3489 mSDtfsCounter, 1089 mSDsluCounter, 12717 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 16206 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:39:57,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 16206 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 12:39:57,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-07-12 12:39:57,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3042. [2022-07-12 12:39:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 2325 states have (on average 1.4051612903225807) internal successors, (3267), 2349 states have internal predecessors, (3267), 606 states have call successors, (606), 111 states have call predecessors, (606), 110 states have return successors, (605), 605 states have call predecessors, (605), 605 states have call successors, (605) [2022-07-12 12:39:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4478 transitions. [2022-07-12 12:39:57,183 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4478 transitions. Word has length 49 [2022-07-12 12:39:57,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:39:57,184 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4478 transitions. [2022-07-12 12:39:57,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 12:39:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4478 transitions. [2022-07-12 12:39:57,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-12 12:39:57,188 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:39:57,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:39:57,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:39:57,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:39:57,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:39:57,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:39:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash 266382380, now seen corresponding path program 1 times [2022-07-12 12:39:57,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:39:57,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11586773] [2022-07-12 12:39:57,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:39:57,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:39:57,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:39:57,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:39:57,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:39:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:39:58,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:39:58,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:39:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 12:39:59,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:39:59,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:39:59,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11586773] [2022-07-12 12:39:59,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11586773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:39:59,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:39:59,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:39:59,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362974461] [2022-07-12 12:39:59,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:39:59,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:39:59,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:39:59,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:39:59,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:39:59,315 INFO L87 Difference]: Start difference. First operand 3042 states and 4478 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 12:39:59,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:39:59,768 INFO L93 Difference]: Finished difference Result 9103 states and 13430 transitions. [2022-07-12 12:39:59,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:39:59,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-07-12 12:39:59,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:39:59,798 INFO L225 Difference]: With dead ends: 9103 [2022-07-12 12:39:59,798 INFO L226 Difference]: Without dead ends: 6062 [2022-07-12 12:39:59,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:39:59,812 INFO L413 NwaCegarLoop]: 2655 mSDtfsCounter, 2241 mSDsluCounter, 7568 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 10223 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:39:59,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 10223 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:39:59,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2022-07-12 12:39:59,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 6062. [2022-07-12 12:39:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 4633 states have (on average 1.4055687459529462) internal successors, (6512), 4681 states have internal predecessors, (6512), 1208 states have call successors, (1208), 221 states have call predecessors, (1208), 220 states have return successors, (1219), 1207 states have call predecessors, (1219), 1207 states have call successors, (1219) [2022-07-12 12:39:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 8939 transitions. [2022-07-12 12:39:59,996 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 8939 transitions. Word has length 49 [2022-07-12 12:39:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:39:59,997 INFO L495 AbstractCegarLoop]: Abstraction has 6062 states and 8939 transitions. [2022-07-12 12:39:59,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 12:39:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 8939 transitions. [2022-07-12 12:40:00,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-12 12:40:00,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:00,007 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:00,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:00,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:00,227 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:00,228 INFO L85 PathProgramCache]: Analyzing trace with hash -969454711, now seen corresponding path program 1 times [2022-07-12 12:40:00,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:00,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710932181] [2022-07-12 12:40:00,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:00,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:00,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:00,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:00,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:40:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:01,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:40:01,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 12:40:01,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:01,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:01,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710932181] [2022-07-12 12:40:01,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710932181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:01,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:01,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:40:01,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182025663] [2022-07-12 12:40:01,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:01,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:40:01,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:01,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:40:01,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:40:01,722 INFO L87 Difference]: Start difference. First operand 6062 states and 8939 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 12:40:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:02,558 INFO L93 Difference]: Finished difference Result 13455 states and 19819 transitions. [2022-07-12 12:40:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:40:02,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2022-07-12 12:40:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:02,593 INFO L225 Difference]: With dead ends: 13455 [2022-07-12 12:40:02,593 INFO L226 Difference]: Without dead ends: 7403 [2022-07-12 12:40:02,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:40:02,615 INFO L413 NwaCegarLoop]: 2320 mSDtfsCounter, 519 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:02,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 4530 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 12:40:02,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7403 states. [2022-07-12 12:40:02,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7403 to 7391. [2022-07-12 12:40:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 5740 states have (on average 1.418815331010453) internal successors, (8144), 5788 states have internal predecessors, (8144), 1361 states have call successors, (1361), 290 states have call predecessors, (1361), 289 states have return successors, (1372), 1360 states have call predecessors, (1372), 1360 states have call successors, (1372) [2022-07-12 12:40:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 10877 transitions. [2022-07-12 12:40:02,865 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 10877 transitions. Word has length 117 [2022-07-12 12:40:02,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:02,866 INFO L495 AbstractCegarLoop]: Abstraction has 7391 states and 10877 transitions. [2022-07-12 12:40:02,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 12:40:02,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 10877 transitions. [2022-07-12 12:40:02,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-12 12:40:02,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:02,881 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:02,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:03,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:03,087 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:03,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:03,088 INFO L85 PathProgramCache]: Analyzing trace with hash 104842639, now seen corresponding path program 1 times [2022-07-12 12:40:03,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:03,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316309517] [2022-07-12 12:40:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:03,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:03,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:03,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:03,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:40:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:04,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:40:04,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-12 12:40:04,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:04,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:04,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316309517] [2022-07-12 12:40:04,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316309517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:04,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:04,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:40:04,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161547840] [2022-07-12 12:40:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:04,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:40:04,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:04,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:40:04,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:40:04,845 INFO L87 Difference]: Start difference. First operand 7391 states and 10877 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 12:40:07,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:07,178 INFO L93 Difference]: Finished difference Result 15179 states and 22309 transitions. [2022-07-12 12:40:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:40:07,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 157 [2022-07-12 12:40:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:07,221 INFO L225 Difference]: With dead ends: 15179 [2022-07-12 12:40:07,222 INFO L226 Difference]: Without dead ends: 7795 [2022-07-12 12:40:07,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:40:07,241 INFO L413 NwaCegarLoop]: 4380 mSDtfsCounter, 2244 mSDsluCounter, 11024 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 15404 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:07,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 15404 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 12:40:07,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7795 states. [2022-07-12 12:40:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7795 to 7430. [2022-07-12 12:40:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5770 states have (on average 1.416637781629116) internal successors, (8174), 5821 states have internal predecessors, (8174), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 292 states have return successors, (1378), 1363 states have call predecessors, (1378), 1366 states have call successors, (1378) [2022-07-12 12:40:07,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10919 transitions. [2022-07-12 12:40:07,442 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10919 transitions. Word has length 157 [2022-07-12 12:40:07,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:07,443 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10919 transitions. [2022-07-12 12:40:07,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 12:40:07,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10919 transitions. [2022-07-12 12:40:07,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 12:40:07,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:07,455 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:07,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:07,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:07,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1933743724, now seen corresponding path program 1 times [2022-07-12 12:40:07,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:07,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951233838] [2022-07-12 12:40:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:07,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:07,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:07,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:07,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:40:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:09,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 12:40:09,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-07-12 12:40:09,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:09,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:09,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951233838] [2022-07-12 12:40:09,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951233838] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:09,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:09,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:40:09,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296840133] [2022-07-12 12:40:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:09,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:40:09,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:09,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:40:09,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:40:09,691 INFO L87 Difference]: Start difference. First operand 7430 states and 10919 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 12:40:14,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:14,033 INFO L93 Difference]: Finished difference Result 15001 states and 22076 transitions. [2022-07-12 12:40:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:40:14,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 163 [2022-07-12 12:40:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:14,063 INFO L225 Difference]: With dead ends: 15001 [2022-07-12 12:40:14,063 INFO L226 Difference]: Without dead ends: 7588 [2022-07-12 12:40:14,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:40:14,093 INFO L413 NwaCegarLoop]: 2469 mSDtfsCounter, 1080 mSDsluCounter, 8560 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 11029 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:14,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 11029 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 12:40:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7588 states. [2022-07-12 12:40:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7588 to 7430. [2022-07-12 12:40:14,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5770 states have (on average 1.415944540727903) internal successors, (8170), 5821 states have internal predecessors, (8170), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 292 states have return successors, (1378), 1363 states have call predecessors, (1378), 1366 states have call successors, (1378) [2022-07-12 12:40:14,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10915 transitions. [2022-07-12 12:40:14,313 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10915 transitions. Word has length 163 [2022-07-12 12:40:14,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:14,313 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10915 transitions. [2022-07-12 12:40:14,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 12:40:14,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10915 transitions. [2022-07-12 12:40:14,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 12:40:14,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:14,324 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:14,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:14,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:14,540 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:14,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:14,540 INFO L85 PathProgramCache]: Analyzing trace with hash 639220886, now seen corresponding path program 1 times [2022-07-12 12:40:14,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:14,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593091851] [2022-07-12 12:40:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:14,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:14,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:14,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:14,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:40:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:16,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 12:40:16,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-12 12:40:16,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:16,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:16,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593091851] [2022-07-12 12:40:16,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593091851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:16,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:16,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:40:16,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705466269] [2022-07-12 12:40:16,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:16,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:40:16,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:16,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:40:16,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:40:16,829 INFO L87 Difference]: Start difference. First operand 7430 states and 10915 transitions. Second operand has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 12:40:20,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:20,330 INFO L93 Difference]: Finished difference Result 18921 states and 28318 transitions. [2022-07-12 12:40:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:40:20,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 163 [2022-07-12 12:40:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:20,401 INFO L225 Difference]: With dead ends: 18921 [2022-07-12 12:40:20,402 INFO L226 Difference]: Without dead ends: 11508 [2022-07-12 12:40:20,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:40:20,416 INFO L413 NwaCegarLoop]: 3534 mSDtfsCounter, 1085 mSDsluCounter, 12788 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 16322 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:20,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 16322 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 12:40:20,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11508 states. [2022-07-12 12:40:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11508 to 7430. [2022-07-12 12:40:20,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5770 states have (on average 1.4152512998266897) internal successors, (8166), 5821 states have internal predecessors, (8166), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 292 states have return successors, (1378), 1363 states have call predecessors, (1378), 1366 states have call successors, (1378) [2022-07-12 12:40:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10911 transitions. [2022-07-12 12:40:20,622 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10911 transitions. Word has length 163 [2022-07-12 12:40:20,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:20,623 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10911 transitions. [2022-07-12 12:40:20,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 12:40:20,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10911 transitions. [2022-07-12 12:40:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 12:40:20,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:20,633 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:20,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:20,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:20,847 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:20,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1694171752, now seen corresponding path program 1 times [2022-07-12 12:40:20,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:20,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454666781] [2022-07-12 12:40:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:20,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:20,850 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:20,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:40:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:22,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:40:22,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:23,139 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-12 12:40:23,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:23,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:23,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454666781] [2022-07-12 12:40:23,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454666781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:23,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:23,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:40:23,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707997157] [2022-07-12 12:40:23,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:23,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:40:23,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:23,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:40:23,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:40:23,141 INFO L87 Difference]: Start difference. First operand 7430 states and 10911 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 12:40:23,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:23,460 INFO L93 Difference]: Finished difference Result 14923 states and 22009 transitions. [2022-07-12 12:40:23,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:40:23,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 163 [2022-07-12 12:40:23,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:23,477 INFO L225 Difference]: With dead ends: 14923 [2022-07-12 12:40:23,478 INFO L226 Difference]: Without dead ends: 7510 [2022-07-12 12:40:23,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:40:23,490 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 6 mSDsluCounter, 6788 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9057 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:23,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9057 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:40:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7510 states. [2022-07-12 12:40:23,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7510 to 7462. [2022-07-12 12:40:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7462 states, 5794 states have (on average 1.4135312392129789) internal successors, (8190), 5845 states have internal predecessors, (8190), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 300 states have return successors, (1442), 1371 states have call predecessors, (1442), 1366 states have call successors, (1442) [2022-07-12 12:40:23,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 10999 transitions. [2022-07-12 12:40:23,704 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 10999 transitions. Word has length 163 [2022-07-12 12:40:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:23,705 INFO L495 AbstractCegarLoop]: Abstraction has 7462 states and 10999 transitions. [2022-07-12 12:40:23,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 12:40:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 10999 transitions. [2022-07-12 12:40:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-12 12:40:23,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:23,714 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:23,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:23,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:23,935 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:23,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:23,936 INFO L85 PathProgramCache]: Analyzing trace with hash -320678795, now seen corresponding path program 1 times [2022-07-12 12:40:23,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:23,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909477951] [2022-07-12 12:40:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:23,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:23,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:23,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:40:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:26,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 2302 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:40:26,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-12 12:40:26,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:26,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:26,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909477951] [2022-07-12 12:40:26,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909477951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:26,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:26,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:40:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688456051] [2022-07-12 12:40:26,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:26,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:40:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:26,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:40:26,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:40:26,351 INFO L87 Difference]: Start difference. First operand 7462 states and 10999 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 12:40:26,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:26,619 INFO L93 Difference]: Finished difference Result 14933 states and 22053 transitions. [2022-07-12 12:40:26,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:40:26,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 165 [2022-07-12 12:40:26,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:26,640 INFO L225 Difference]: With dead ends: 14933 [2022-07-12 12:40:26,640 INFO L226 Difference]: Without dead ends: 7488 [2022-07-12 12:40:26,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:40:26,655 INFO L413 NwaCegarLoop]: 2267 mSDtfsCounter, 2 mSDsluCounter, 6788 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9055 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:26,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9055 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:40:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2022-07-12 12:40:26,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7482. [2022-07-12 12:40:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7482 states, 5808 states have (on average 1.412534435261708) internal successors, (8204), 5861 states have internal predecessors, (8204), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 306 states have return successors, (1456), 1375 states have call predecessors, (1456), 1366 states have call successors, (1456) [2022-07-12 12:40:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7482 states to 7482 states and 11027 transitions. [2022-07-12 12:40:26,938 INFO L78 Accepts]: Start accepts. Automaton has 7482 states and 11027 transitions. Word has length 165 [2022-07-12 12:40:26,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:26,939 INFO L495 AbstractCegarLoop]: Abstraction has 7482 states and 11027 transitions. [2022-07-12 12:40:26,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 12:40:26,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7482 states and 11027 transitions. [2022-07-12 12:40:26,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-12 12:40:26,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:26,949 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:27,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:27,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:27,179 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1424768948, now seen corresponding path program 1 times [2022-07-12 12:40:27,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:27,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302554890] [2022-07-12 12:40:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:27,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:27,184 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:27,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 12:40:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:29,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-12 12:40:29,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-12 12:40:30,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:30,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:30,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302554890] [2022-07-12 12:40:30,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302554890] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:30,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:30,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 12:40:30,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171707990] [2022-07-12 12:40:30,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:30,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 12:40:30,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:30,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 12:40:30,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-12 12:40:30,695 INFO L87 Difference]: Start difference. First operand 7482 states and 11027 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 12:40:33,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:33,170 INFO L93 Difference]: Finished difference Result 19059 states and 28694 transitions. [2022-07-12 12:40:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 12:40:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2022-07-12 12:40:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:33,199 INFO L225 Difference]: With dead ends: 19059 [2022-07-12 12:40:33,200 INFO L226 Difference]: Without dead ends: 11594 [2022-07-12 12:40:33,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-12 12:40:33,216 INFO L413 NwaCegarLoop]: 3645 mSDtfsCounter, 1089 mSDsluCounter, 38700 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 42345 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:33,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 42345 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 12:40:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11594 states. [2022-07-12 12:40:33,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 7506. [2022-07-12 12:40:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 5826 states have (on average 1.4105732921386887) internal successors, (8218), 5877 states have internal predecessors, (8218), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-12 12:40:33,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 11063 transitions. [2022-07-12 12:40:33,489 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 11063 transitions. Word has length 172 [2022-07-12 12:40:33,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:33,490 INFO L495 AbstractCegarLoop]: Abstraction has 7506 states and 11063 transitions. [2022-07-12 12:40:33,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 2 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 12:40:33,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 11063 transitions. [2022-07-12 12:40:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-12 12:40:33,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:33,504 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:33,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:33,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:33,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:33,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:33,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1685717248, now seen corresponding path program 1 times [2022-07-12 12:40:33,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:33,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504888800] [2022-07-12 12:40:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:33,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:33,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:33,723 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:33,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 12:40:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:36,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2353 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:40:36,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-12 12:40:36,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:36,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:36,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504888800] [2022-07-12 12:40:36,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504888800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:36,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:36,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:40:36,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299059265] [2022-07-12 12:40:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:36,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:40:36,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:36,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:40:36,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:40:36,146 INFO L87 Difference]: Start difference. First operand 7506 states and 11063 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 12:40:36,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:36,468 INFO L93 Difference]: Finished difference Result 19365 states and 29130 transitions. [2022-07-12 12:40:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:40:36,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 178 [2022-07-12 12:40:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:36,500 INFO L225 Difference]: With dead ends: 19365 [2022-07-12 12:40:36,501 INFO L226 Difference]: Without dead ends: 11876 [2022-07-12 12:40:36,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:40:36,521 INFO L413 NwaCegarLoop]: 3676 mSDtfsCounter, 1075 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 6130 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:36,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 6130 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:40:36,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11876 states. [2022-07-12 12:40:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11876 to 7510. [2022-07-12 12:40:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 5830 states have (on average 1.4102915951972557) internal successors, (8222), 5881 states have internal predecessors, (8222), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-12 12:40:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11067 transitions. [2022-07-12 12:40:36,800 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11067 transitions. Word has length 178 [2022-07-12 12:40:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:36,801 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 11067 transitions. [2022-07-12 12:40:36,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 12:40:36,801 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11067 transitions. [2022-07-12 12:40:36,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-12 12:40:36,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:36,810 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:36,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:37,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:37,032 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:37,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:37,032 INFO L85 PathProgramCache]: Analyzing trace with hash 711929151, now seen corresponding path program 1 times [2022-07-12 12:40:37,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:37,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786722599] [2022-07-12 12:40:37,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:37,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:37,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:37,035 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:37,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 12:40:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:39,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 12:40:39,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-07-12 12:40:39,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:39,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:39,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786722599] [2022-07-12 12:40:39,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786722599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:39,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:39,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:40:39,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307790281] [2022-07-12 12:40:39,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:39,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:40:39,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:39,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:40:39,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:40:39,793 INFO L87 Difference]: Start difference. First operand 7510 states and 11067 transitions. Second operand has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:40:43,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:43,283 INFO L93 Difference]: Finished difference Result 19089 states and 28686 transitions. [2022-07-12 12:40:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:40:43,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-07-12 12:40:43,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:43,304 INFO L225 Difference]: With dead ends: 19089 [2022-07-12 12:40:43,304 INFO L226 Difference]: Without dead ends: 11596 [2022-07-12 12:40:43,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:40:43,315 INFO L413 NwaCegarLoop]: 3536 mSDtfsCounter, 1005 mSDsluCounter, 12895 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 16431 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:43,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 16431 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 12:40:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11596 states. [2022-07-12 12:40:43,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11596 to 7510. [2022-07-12 12:40:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 5830 states have (on average 1.4096054888507719) internal successors, (8218), 5881 states have internal predecessors, (8218), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-12 12:40:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11063 transitions. [2022-07-12 12:40:43,649 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11063 transitions. Word has length 182 [2022-07-12 12:40:43,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:43,650 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 11063 transitions. [2022-07-12 12:40:43,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:40:43,650 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11063 transitions. [2022-07-12 12:40:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-12 12:40:43,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:43,661 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:43,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:43,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:43,888 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:43,888 INFO L85 PathProgramCache]: Analyzing trace with hash 773968765, now seen corresponding path program 1 times [2022-07-12 12:40:43,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:43,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449437444] [2022-07-12 12:40:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:43,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:43,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:43,891 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:43,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 12:40:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:47,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:40:47,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-12 12:40:47,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:47,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:47,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449437444] [2022-07-12 12:40:47,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449437444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:47,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:47,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:40:47,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481534605] [2022-07-12 12:40:47,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:47,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:40:47,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:47,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:40:47,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:40:47,502 INFO L87 Difference]: Start difference. First operand 7510 states and 11063 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:40:49,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:49,612 INFO L93 Difference]: Finished difference Result 23455 states and 35691 transitions. [2022-07-12 12:40:49,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:40:49,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-07-12 12:40:49,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:49,694 INFO L225 Difference]: With dead ends: 23455 [2022-07-12 12:40:49,694 INFO L226 Difference]: Without dead ends: 15962 [2022-07-12 12:40:49,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:40:49,709 INFO L413 NwaCegarLoop]: 4849 mSDtfsCounter, 2087 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2481 SdHoareTripleChecker+Valid, 10949 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:49,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 10949 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 12:40:49,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-07-12 12:40:50,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 7518. [2022-07-12 12:40:50,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 5838 states have (on average 1.4090441932168551) internal successors, (8226), 5889 states have internal predecessors, (8226), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-12 12:40:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 11071 transitions. [2022-07-12 12:40:50,104 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 11071 transitions. Word has length 182 [2022-07-12 12:40:50,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:50,104 INFO L495 AbstractCegarLoop]: Abstraction has 7518 states and 11071 transitions. [2022-07-12 12:40:50,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:40:50,104 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 11071 transitions. [2022-07-12 12:40:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 12:40:50,112 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:50,112 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:50,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-12 12:40:50,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:50,333 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:50,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:50,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1073399476, now seen corresponding path program 1 times [2022-07-12 12:40:50,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:50,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114304849] [2022-07-12 12:40:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:50,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:50,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:50,337 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:50,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 12:40:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:40:52,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:40:52,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:40:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-12 12:40:52,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:40:52,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:40:52,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114304849] [2022-07-12 12:40:52,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114304849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:40:52,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:40:52,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:40:52,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557429459] [2022-07-12 12:40:52,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:40:52,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:40:52,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:40:52,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:40:52,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:40:52,912 INFO L87 Difference]: Start difference. First operand 7518 states and 11071 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 12:40:53,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:40:53,681 INFO L93 Difference]: Finished difference Result 19121 states and 28714 transitions. [2022-07-12 12:40:53,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 12:40:53,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-12 12:40:53,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:40:53,703 INFO L225 Difference]: With dead ends: 19121 [2022-07-12 12:40:53,703 INFO L226 Difference]: Without dead ends: 11620 [2022-07-12 12:40:53,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:40:53,714 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 1070 mSDsluCounter, 9643 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 13294 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:40:53,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 13294 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 12:40:53,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2022-07-12 12:40:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 7518. [2022-07-12 12:40:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 5838 states have (on average 1.4083590270640631) internal successors, (8222), 5889 states have internal predecessors, (8222), 1367 states have call successors, (1367), 293 states have call predecessors, (1367), 312 states have return successors, (1478), 1383 states have call predecessors, (1478), 1366 states have call successors, (1478) [2022-07-12 12:40:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 11067 transitions. [2022-07-12 12:40:53,989 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 11067 transitions. Word has length 183 [2022-07-12 12:40:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:40:53,990 INFO L495 AbstractCegarLoop]: Abstraction has 7518 states and 11067 transitions. [2022-07-12 12:40:53,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 12:40:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 11067 transitions. [2022-07-12 12:40:53,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 12:40:53,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:40:53,998 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:40:54,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 12:40:54,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:40:54,212 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:40:54,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:40:54,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1941599003, now seen corresponding path program 1 times [2022-07-12 12:40:54,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:40:54,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173871779] [2022-07-12 12:40:54,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:40:54,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:40:54,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:40:54,215 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:40:54,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process