./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-?-3598765 [2022-07-21 11:12:06,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:12:06,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:12:06,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:12:06,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:12:06,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:12:06,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:12:06,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:12:06,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:12:06,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:12:06,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:12:06,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:12:06,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:12:06,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:12:06,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:12:06,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:12:06,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:12:06,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:12:06,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:12:06,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:12:06,318 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:12:06,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:12:06,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:12:06,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:12:06,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:12:06,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:12:06,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:12:06,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:12:06,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:12:06,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:12:06,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:12:06,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:12:06,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:12:06,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:12:06,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:12:06,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:12:06,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:12:06,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:12:06,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:12:06,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:12:06,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:12:06,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:12:06,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:12:06,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:12:06,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:12:06,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:12:06,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:12:06,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:12:06,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:12:06,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:12:06,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:12:06,347 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:12:06,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:12:06,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:12:06,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:12:06,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:12:06,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:12:06,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:12:06,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:12:06,352 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:12:06,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:12:06,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:12:06,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:12:06,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:12:06,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:12:06,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:12:06,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:12:06,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:12:06,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:12:06,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:12:06,354 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:12:06,354 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:12:06,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:12:06,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2022-07-21 11:12:06,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:12:06,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:12:06,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:12:06,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:12:06,591 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:12:06,593 INFO L432 ainManager$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 [2022-07-21 11:12:06,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e164b9334/d9b7a484d1f54e6aa73b5eb9ade6937d/FLAGc3b983c43 [2022-07-21 11:12:07,275 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:12:07,276 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 [2022-07-21 11:12:07,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e164b9334/d9b7a484d1f54e6aa73b5eb9ade6937d/FLAGc3b983c43 [2022-07-21 11:12:07,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e164b9334/d9b7a484d1f54e6aa73b5eb9ade6937d [2022-07-21 11:12:07,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:12:07,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:12:07,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:12:07,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:12:07,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:12:07,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:12:07" (1/1) ... [2022-07-21 11:12:07,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad717af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:07, skipping insertion in model container [2022-07-21 11:12:07,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:12:07" (1/1) ... [2022-07-21 11:12:07,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:12:07,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:12:08,503 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] [2022-07-21 11:12:09,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:12:09,368 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:12:09,499 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] [2022-07-21 11:12:09,642 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) [2022-07-21 11:12:09,648 INFO L158 Benchmark]: Toolchain (without parser) took 2176.75ms. Allocated memory was 56.6MB in the beginning and 247.5MB in the end (delta: 190.8MB). Free memory was 32.3MB in the beginning and 179.7MB in the end (delta: -147.4MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2022-07-21 11:12:09,649 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:12:09,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2173.87ms. Allocated memory was 56.6MB in the beginning and 247.5MB in the end (delta: 190.8MB). Free memory was 32.2MB in the beginning and 179.7MB in the end (delta: -147.5MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2022-07-21 11:12:09,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2173.87ms. Allocated memory was 56.6MB in the beginning and 247.5MB in the end (delta: 190.8MB). Free memory was 32.2MB in the beginning and 179.7MB in the end (delta: -147.5MB). Peak memory consumption was 71.0MB. 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-?-3598765 [2022-07-21 11:12:11,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:12:11,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:12:11,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:12:11,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:12:11,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:12:11,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:12:11,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:12:11,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:12:11,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:12:11,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:12:11,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:12:11,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:12:11,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:12:11,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:12:11,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:12:11,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:12:11,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:12:11,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:12:11,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:12:11,313 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:12:11,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:12:11,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:12:11,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:12:11,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:12:11,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:12:11,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:12:11,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:12:11,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:12:11,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:12:11,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:12:11,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:12:11,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:12:11,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:12:11,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:12:11,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:12:11,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:12:11,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:12:11,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:12:11,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:12:11,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:12:11,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:12:11,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:12:11,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:12:11,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:12:11,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:12:11,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:12:11,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:12:11,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:12:11,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:12:11,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:12:11,360 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:12:11,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:12:11,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:12:11,362 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:12:11,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:12:11,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:12:11,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:12:11,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:12:11,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:12:11,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:12:11,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:12:11,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:12:11,363 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:12:11,363 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:12:11,363 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:12:11,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:12:11,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:12:11,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:12:11,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2022-07-21 11:12:11,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:12:11,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:12:11,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:12:11,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:12:11,625 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:12:11,626 INFO L432 ainManager$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 [2022-07-21 11:12:11,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adce1099/eb0d52f88fa9429a866ecff692da71a5/FLAG0873cc635 [2022-07-21 11:12:12,382 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:12:12,383 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 [2022-07-21 11:12:12,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adce1099/eb0d52f88fa9429a866ecff692da71a5/FLAG0873cc635 [2022-07-21 11:12:12,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adce1099/eb0d52f88fa9429a866ecff692da71a5 [2022-07-21 11:12:12,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:12:12,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:12:12,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:12:12,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:12:12,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:12:12,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:12:12" (1/1) ... [2022-07-21 11:12:12,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec0709e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:12, skipping insertion in model container [2022-07-21 11:12:12,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:12:12" (1/1) ... [2022-07-21 11:12:12,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:12:12,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:12:13,637 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] [2022-07-21 11:12:14,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:12:14,455 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:12:14,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:12:14,677 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] [2022-07-21 11:12:14,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:12:14,848 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:12:14,953 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] [2022-07-21 11:12:15,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:12:15,319 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:12:15,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15 WrapperNode [2022-07-21 11:12:15,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:12:15,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:12:15,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:12:15,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:12:15,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,512 INFO L137 Inliner]: procedures = 262, calls = 2608, calls flagged for inlining = 135, calls inlined = 132, statements flattened = 6145 [2022-07-21 11:12:15,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:12:15,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:12:15,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:12:15,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:12:15,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:12:15,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:12:15,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:12:15,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:12:15,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (1/1) ... [2022-07-21 11:12:15,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:12:15,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:12:15,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:12:15,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:12:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2022-07-21 11:12:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2022-07-21 11:12:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:12:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2022-07-21 11:12:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2022-07-21 11:12:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:12:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:12:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:12:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:12:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:12:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:12:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:12:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-21 11:12:15,750 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-21 11:12:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-07-21 11:12:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_cmdrsp_buf [2022-07-21 11:12:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:12:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:12:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-07-21 11:12:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-07-21 11:12:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2022-07-21 11:12:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2022-07-21 11:12:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-21 11:12:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-21 11:12:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-21 11:12:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-21 11:12:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2022-07-21 11:12:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2022-07-21 11:12:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_map_pci_memory [2022-07-21 11:12:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_map_pci_memory [2022-07-21 11:12:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2022-07-21 11:12:15,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2022-07-21 11:12:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:12:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:12:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 11:12:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 11:12:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:12:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:12:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:12:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:12:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 11:12:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 11:12:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:12:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:12:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_process_event_ready [2022-07-21 11:12:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_process_event_ready [2022-07-21 11:12:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:12:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:12:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 11:12:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 11:12:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-21 11:12:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:12:15,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:12:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unmap_pci_memory [2022-07-21 11:12:15,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unmap_pci_memory [2022-07-21 11:12:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:12:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:12:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:12:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:12:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:12:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:12:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_clean_pcie_ring_buf [2022-07-21 11:12:15,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_clean_pcie_ring_buf [2022-07-21 11:12:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_dev_wakeup_delay [2022-07-21 11:12:15,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_dev_wakeup_delay [2022-07-21 11:12:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 11:12:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:12:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:12:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:12:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_ok_to_access_hw [2022-07-21 11:12:15,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_ok_to_access_hw [2022-07-21 11:12:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:12:15,757 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:12:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_DMA_ADDR [2022-07-21 11:12:15,757 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_DMA_ADDR [2022-07-21 11:12:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:12:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:12:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 11:12:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 11:12:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_resume [2022-07-21 11:12:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_resume [2022-07-21 11:12:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_txbd_ring [2022-07-21 11:12:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_txbd_ring [2022-07-21 11:12:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_suspend [2022-07-21 11:12:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_suspend [2022-07-21 11:12:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 11:12:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 11:12:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:12:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:12:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_enable_host_int [2022-07-21 11:12:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_enable_host_int [2022-07-21 11:12:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_disable_host_int [2022-07-21 11:12:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_disable_host_int [2022-07-21 11:12:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_not_full [2022-07-21 11:12:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_not_full [2022-07-21 11:12:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-07-21 11:12:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-07-21 11:12:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_evtbd_ring [2022-07-21 11:12:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_evtbd_ring [2022-07-21 11:12:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:12:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:12:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-21 11:12:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-21 11:12:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 11:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 11:12:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 11:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 11:12:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 11:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 11:12:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2022-07-21 11:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2022-07-21 11:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:12:15,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 11:12:15,762 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 11:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_remove [2022-07-21 11:12:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_remove [2022-07-21 11:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2022-07-21 11:12:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2022-07-21 11:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_rxbd_ring [2022-07-21 11:12:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_rxbd_ring [2022-07-21 11:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:12:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:12:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:12:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 11:12:15,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 11:12:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:12:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-21 11:12:15,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-21 11:12:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_PACB [2022-07-21 11:12:15,764 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_PACB [2022-07-21 11:12:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 11:12:15,765 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 11:12:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:12:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-21 11:12:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:12:15,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:12:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2022-07-21 11:12:15,765 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2022-07-21 11:12:15,765 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_empty [2022-07-21 11:12:15,765 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_empty [2022-07-21 11:12:16,420 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:12:16,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:12:23,707 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:13:11,818 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:13:11,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:13:11,838 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 11:13:11,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:13:11 BoogieIcfgContainer [2022-07-21 11:13:11,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:13:11,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:13:11,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:13:11,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:13:11,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:12:12" (1/3) ... [2022-07-21 11:13:11,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b6ecac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:13:11, skipping insertion in model container [2022-07-21 11:13:11,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:12:15" (2/3) ... [2022-07-21 11:13:11,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b6ecac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:13:11, skipping insertion in model container [2022-07-21 11:13:11,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:13:11" (3/3) ... [2022-07-21 11:13:11,849 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 [2022-07-21 11:13:11,859 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:13:11,859 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:13:11,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:13:11,998 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@1409b7c2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3274673d [2022-07-21 11:13:11,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:13:12,006 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) [2022-07-21 11:13:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-21 11:13:12,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:12,025 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] [2022-07-21 11:13:12,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:12,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1790507018, now seen corresponding path program 1 times [2022-07-21 11:13:12,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:12,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111396578] [2022-07-21 11:13:12,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:12,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:12,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:12,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:12,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:13:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:13,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1381 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:13:13,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:13,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 11:13:13,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:13,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:13,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111396578] [2022-07-21 11:13:13,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111396578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:13,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:13,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:13:13,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714372093] [2022-07-21 11:13:13,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:13,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:13:13,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:13,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:13:13,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:13:13,316 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) [2022-07-21 11:13:14,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:14,165 INFO L93 Difference]: Finished difference Result 4627 states and 6891 transitions. [2022-07-21 11:13:14,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:13:14,167 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 [2022-07-21 11:13:14,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:14,193 INFO L225 Difference]: With dead ends: 4627 [2022-07-21 11:13:14,194 INFO L226 Difference]: Without dead ends: 3042 [2022-07-21 11:13:14,205 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 [2022-07-21 11:13:14,212 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 2242 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2022-07-21 11:13:14,215 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] [2022-07-21 11:13:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2022-07-21 11:13:14,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3042. [2022-07-21 11:13:14,362 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) [2022-07-21 11:13:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4479 transitions. [2022-07-21 11:13:14,381 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4479 transitions. Word has length 39 [2022-07-21 11:13:14,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:14,381 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4479 transitions. [2022-07-21 11:13:14,382 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) [2022-07-21 11:13:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4479 transitions. [2022-07-21 11:13:14,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-21 11:13:14,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:14,386 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] [2022-07-21 11:13:14,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 11:13:14,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:14,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:14,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1277499630, now seen corresponding path program 1 times [2022-07-21 11:13:14,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:14,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353649040] [2022-07-21 11:13:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:14,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:14,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:14,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:14,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:13:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:16,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 11:13:16,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 11:13:16,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:16,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:16,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353649040] [2022-07-21 11:13:16,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353649040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:16,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:16,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:13:16,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838149722] [2022-07-21 11:13:16,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:16,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:13:16,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:16,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:13:16,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:13:16,300 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) [2022-07-21 11:13:21,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:21,366 INFO L93 Difference]: Finished difference Result 6992 states and 10407 transitions. [2022-07-21 11:13:21,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:13:21,366 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 [2022-07-21 11:13:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:21,383 INFO L225 Difference]: With dead ends: 6992 [2022-07-21 11:13:21,384 INFO L226 Difference]: Without dead ends: 3960 [2022-07-21 11:13:21,394 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 [2022-07-21 11:13:21,394 INFO L413 NwaCegarLoop]: 3489 mSDtfsCounter, 1089 mSDsluCounter, 12717 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s 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, 4.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:13:21,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 16206 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-21 11:13:21,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-07-21 11:13:21,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3042. [2022-07-21 11:13:21,475 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) [2022-07-21 11:13:21,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 4478 transitions. [2022-07-21 11:13:21,487 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 4478 transitions. Word has length 49 [2022-07-21 11:13:21,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:21,488 INFO L495 AbstractCegarLoop]: Abstraction has 3042 states and 4478 transitions. [2022-07-21 11:13:21,488 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) [2022-07-21 11:13:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 4478 transitions. [2022-07-21 11:13:21,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-21 11:13:21,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:21,492 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] [2022-07-21 11:13:21,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-21 11:13:21,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:21,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:21,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:21,708 INFO L85 PathProgramCache]: Analyzing trace with hash 266382380, now seen corresponding path program 1 times [2022-07-21 11:13:21,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:21,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249719838] [2022-07-21 11:13:21,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:21,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:21,711 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:21,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:13:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:23,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:13:23,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 11:13:23,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:23,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:23,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249719838] [2022-07-21 11:13:23,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249719838] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:23,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:23,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:13:23,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942987318] [2022-07-21 11:13:23,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:23,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:13:23,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:23,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:13:23,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:13:23,639 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) [2022-07-21 11:13:24,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:24,170 INFO L93 Difference]: Finished difference Result 9103 states and 13430 transitions. [2022-07-21 11:13:24,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:13:24,171 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 [2022-07-21 11:13:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:24,196 INFO L225 Difference]: With dead ends: 9103 [2022-07-21 11:13:24,196 INFO L226 Difference]: Without dead ends: 6062 [2022-07-21 11:13:24,205 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 [2022-07-21 11:13:24,207 INFO L413 NwaCegarLoop]: 2633 mSDtfsCounter, 2241 mSDsluCounter, 7524 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 10157 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:13:24,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 10157 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 11:13:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2022-07-21 11:13:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 6062. [2022-07-21 11:13:24,379 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) [2022-07-21 11:13:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 8939 transitions. [2022-07-21 11:13:24,402 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 8939 transitions. Word has length 49 [2022-07-21 11:13:24,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:24,403 INFO L495 AbstractCegarLoop]: Abstraction has 6062 states and 8939 transitions. [2022-07-21 11:13:24,403 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) [2022-07-21 11:13:24,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 8939 transitions. [2022-07-21 11:13:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 11:13:24,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:24,420 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] [2022-07-21 11:13:24,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-21 11:13:24,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:24,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:24,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:24,636 INFO L85 PathProgramCache]: Analyzing trace with hash -969454711, now seen corresponding path program 1 times [2022-07-21 11:13:24,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:24,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162313421] [2022-07-21 11:13:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:24,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:24,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:24,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:24,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:13:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:26,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 2135 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:13:26,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:26,234 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 11:13:26,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:26,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:26,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162313421] [2022-07-21 11:13:26,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162313421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:26,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:26,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:13:26,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393397134] [2022-07-21 11:13:26,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:26,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:13:26,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:26,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:13:26,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:13:26,236 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) [2022-07-21 11:13:27,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:27,209 INFO L93 Difference]: Finished difference Result 13455 states and 19819 transitions. [2022-07-21 11:13:27,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:13:27,209 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 [2022-07-21 11:13:27,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:27,240 INFO L225 Difference]: With dead ends: 13455 [2022-07-21 11:13:27,241 INFO L226 Difference]: Without dead ends: 7403 [2022-07-21 11:13:27,259 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 [2022-07-21 11:13:27,260 INFO L413 NwaCegarLoop]: 2320 mSDtfsCounter, 519 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:13:27,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 4530 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 11:13:27,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7403 states. [2022-07-21 11:13:27,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7403 to 7391. [2022-07-21 11:13:27,528 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) [2022-07-21 11:13:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 10877 transitions. [2022-07-21 11:13:27,552 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 10877 transitions. Word has length 117 [2022-07-21 11:13:27,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:27,555 INFO L495 AbstractCegarLoop]: Abstraction has 7391 states and 10877 transitions. [2022-07-21 11:13:27,555 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) [2022-07-21 11:13:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 10877 transitions. [2022-07-21 11:13:27,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 11:13:27,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:27,573 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] [2022-07-21 11:13:27,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-21 11:13:27,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:27,787 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:27,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:27,788 INFO L85 PathProgramCache]: Analyzing trace with hash 104842639, now seen corresponding path program 1 times [2022-07-21 11:13:27,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:27,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778514343] [2022-07-21 11:13:27,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:27,789 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:27,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:27,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:27,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:13:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:29,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:13:29,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-21 11:13:29,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:29,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:29,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778514343] [2022-07-21 11:13:29,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778514343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:29,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:29,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:13:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371818163] [2022-07-21 11:13:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:29,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:13:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:29,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:13:29,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:13:29,790 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) [2022-07-21 11:13:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:32,400 INFO L93 Difference]: Finished difference Result 15179 states and 22309 transitions. [2022-07-21 11:13:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:13:32,401 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 [2022-07-21 11:13:32,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:32,443 INFO L225 Difference]: With dead ends: 15179 [2022-07-21 11:13:32,443 INFO L226 Difference]: Without dead ends: 7795 [2022-07-21 11:13:32,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:13:32,466 INFO L413 NwaCegarLoop]: 4380 mSDtfsCounter, 2244 mSDsluCounter, 11024 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:13:32,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 15404 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 11:13:32,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7795 states. [2022-07-21 11:13:32,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7795 to 7430. [2022-07-21 11:13:32,684 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) [2022-07-21 11:13:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10919 transitions. [2022-07-21 11:13:32,704 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10919 transitions. Word has length 157 [2022-07-21 11:13:32,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:32,705 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10919 transitions. [2022-07-21 11:13:32,705 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) [2022-07-21 11:13:32,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10919 transitions. [2022-07-21 11:13:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 11:13:32,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:32,716 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] [2022-07-21 11:13:32,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:13:32,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:32,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:32,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1933743724, now seen corresponding path program 1 times [2022-07-21 11:13:32,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:32,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409187017] [2022-07-21 11:13:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:32,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:32,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:32,939 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:32,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:13:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:34,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 11:13:34,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:35,236 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-07-21 11:13:35,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:35,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:35,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409187017] [2022-07-21 11:13:35,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409187017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:35,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:35,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:13:35,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524000945] [2022-07-21 11:13:35,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:35,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:13:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:13:35,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:13:35,238 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) [2022-07-21 11:13:39,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:39,541 INFO L93 Difference]: Finished difference Result 15001 states and 22076 transitions. [2022-07-21 11:13:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:13:39,543 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 [2022-07-21 11:13:39,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:39,565 INFO L225 Difference]: With dead ends: 15001 [2022-07-21 11:13:39,565 INFO L226 Difference]: Without dead ends: 7588 [2022-07-21 11:13:39,585 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 [2022-07-21 11:13:39,586 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 [2022-07-21 11:13:39,587 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] [2022-07-21 11:13:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7588 states. [2022-07-21 11:13:39,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7588 to 7430. [2022-07-21 11:13:39,747 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) [2022-07-21 11:13:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10915 transitions. [2022-07-21 11:13:39,767 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10915 transitions. Word has length 163 [2022-07-21 11:13:39,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:39,768 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10915 transitions. [2022-07-21 11:13:39,768 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) [2022-07-21 11:13:39,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10915 transitions. [2022-07-21 11:13:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 11:13:39,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:39,778 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] [2022-07-21 11:13:39,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:13:39,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:39,999 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:40,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:40,000 INFO L85 PathProgramCache]: Analyzing trace with hash 639220886, now seen corresponding path program 1 times [2022-07-21 11:13:40,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:40,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199008097] [2022-07-21 11:13:40,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:40,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:40,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:40,004 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:40,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:13:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:42,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 11:13:42,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:13:42,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:42,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:42,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199008097] [2022-07-21 11:13:42,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199008097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:42,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:42,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:13:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587955927] [2022-07-21 11:13:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:42,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:13:42,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:42,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:13:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:13:42,467 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) [2022-07-21 11:13:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:46,929 INFO L93 Difference]: Finished difference Result 18921 states and 28318 transitions. [2022-07-21 11:13:46,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:13:46,930 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 [2022-07-21 11:13:46,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:46,964 INFO L225 Difference]: With dead ends: 18921 [2022-07-21 11:13:46,964 INFO L226 Difference]: Without dead ends: 11508 [2022-07-21 11:13:46,980 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 [2022-07-21 11:13:46,981 INFO L413 NwaCegarLoop]: 3534 mSDtfsCounter, 1085 mSDsluCounter, 12788 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:13:46,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 16322 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-21 11:13:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11508 states. [2022-07-21 11:13:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11508 to 7430. [2022-07-21 11:13:47,203 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) [2022-07-21 11:13:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10911 transitions. [2022-07-21 11:13:47,226 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10911 transitions. Word has length 163 [2022-07-21 11:13:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:47,227 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10911 transitions. [2022-07-21 11:13:47,227 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) [2022-07-21 11:13:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10911 transitions. [2022-07-21 11:13:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 11:13:47,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:47,238 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] [2022-07-21 11:13:47,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:13:47,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:47,447 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:47,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1694171752, now seen corresponding path program 1 times [2022-07-21 11:13:47,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:47,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456119799] [2022-07-21 11:13:47,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:47,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:47,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:47,450 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:47,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:13:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:49,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:13:49,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-21 11:13:50,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:50,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456119799] [2022-07-21 11:13:50,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456119799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:50,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:50,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:13:50,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106605336] [2022-07-21 11:13:50,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:50,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:13:50,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:50,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:13:50,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:13:50,047 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) [2022-07-21 11:13:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:50,366 INFO L93 Difference]: Finished difference Result 14923 states and 22009 transitions. [2022-07-21 11:13:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:13:50,367 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 [2022-07-21 11:13:50,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:50,392 INFO L225 Difference]: With dead ends: 14923 [2022-07-21 11:13:50,392 INFO L226 Difference]: Without dead ends: 7510 [2022-07-21 11:13:50,410 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 [2022-07-21 11:13:50,410 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 [2022-07-21 11:13:50,411 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] [2022-07-21 11:13:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7510 states. [2022-07-21 11:13:50,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7510 to 7462. [2022-07-21 11:13:50,703 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) [2022-07-21 11:13:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7462 states to 7462 states and 10999 transitions. [2022-07-21 11:13:50,724 INFO L78 Accepts]: Start accepts. Automaton has 7462 states and 10999 transitions. Word has length 163 [2022-07-21 11:13:50,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:50,725 INFO L495 AbstractCegarLoop]: Abstraction has 7462 states and 10999 transitions. [2022-07-21 11:13:50,725 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) [2022-07-21 11:13:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 7462 states and 10999 transitions. [2022-07-21 11:13:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-21 11:13:50,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:50,737 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] [2022-07-21 11:13:50,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-21 11:13:50,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:50,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:50,964 INFO L85 PathProgramCache]: Analyzing trace with hash -320678795, now seen corresponding path program 1 times [2022-07-21 11:13:50,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:50,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681452293] [2022-07-21 11:13:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:50,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:50,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:50,967 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:50,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:13:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:53,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 2302 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:13:53,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-21 11:13:53,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:53,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:53,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681452293] [2022-07-21 11:13:53,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681452293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:53,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:53,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:13:53,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663456104] [2022-07-21 11:13:53,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:53,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:13:53,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:53,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:13:53,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:13:53,657 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) [2022-07-21 11:13:53,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:13:53,934 INFO L93 Difference]: Finished difference Result 14933 states and 22053 transitions. [2022-07-21 11:13:53,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:13:53,934 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 [2022-07-21 11:13:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:13:53,959 INFO L225 Difference]: With dead ends: 14933 [2022-07-21 11:13:53,959 INFO L226 Difference]: Without dead ends: 7488 [2022-07-21 11:13:53,978 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 [2022-07-21 11:13:53,980 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 [2022-07-21 11:13:53,980 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] [2022-07-21 11:13:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2022-07-21 11:13:54,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7482. [2022-07-21 11:13:54,149 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) [2022-07-21 11:13:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7482 states to 7482 states and 11027 transitions. [2022-07-21 11:13:54,170 INFO L78 Accepts]: Start accepts. Automaton has 7482 states and 11027 transitions. Word has length 165 [2022-07-21 11:13:54,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:13:54,171 INFO L495 AbstractCegarLoop]: Abstraction has 7482 states and 11027 transitions. [2022-07-21 11:13:54,171 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) [2022-07-21 11:13:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7482 states and 11027 transitions. [2022-07-21 11:13:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-21 11:13:54,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:13:54,182 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] [2022-07-21 11:13:54,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 11:13:54,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:13:54,407 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:13:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:13:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1424768948, now seen corresponding path program 1 times [2022-07-21 11:13:54,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:13:54,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91908573] [2022-07-21 11:13:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:13:54,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:13:54,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:13:54,420 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:13:54,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 11:13:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:13:56,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 2328 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-21 11:13:56,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:13:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-21 11:13:58,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:13:58,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:13:58,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91908573] [2022-07-21 11:13:58,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91908573] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:13:58,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:13:58,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 11:13:58,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341032292] [2022-07-21 11:13:58,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:13:58,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:13:58,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:13:58,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:13:58,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:13:58,279 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) [2022-07-21 11:14:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:00,967 INFO L93 Difference]: Finished difference Result 19059 states and 28694 transitions. [2022-07-21 11:14:00,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:14:00,969 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 [2022-07-21 11:14:00,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:01,008 INFO L225 Difference]: With dead ends: 19059 [2022-07-21 11:14:01,008 INFO L226 Difference]: Without dead ends: 11594 [2022-07-21 11:14:01,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-21 11:14:01,029 INFO L413 NwaCegarLoop]: 3646 mSDtfsCounter, 1089 mSDsluCounter, 38711 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 42357 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:01,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 42357 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 11:14:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11594 states. [2022-07-21 11:14:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 7506. [2022-07-21 11:14:01,385 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) [2022-07-21 11:14:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 11063 transitions. [2022-07-21 11:14:01,405 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 11063 transitions. Word has length 172 [2022-07-21 11:14:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:01,406 INFO L495 AbstractCegarLoop]: Abstraction has 7506 states and 11063 transitions. [2022-07-21 11:14:01,406 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) [2022-07-21 11:14:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 11063 transitions. [2022-07-21 11:14:01,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 11:14:01,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:01,419 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] [2022-07-21 11:14:01,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 11:14:01,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:14:01,640 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:01,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:01,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1685717248, now seen corresponding path program 1 times [2022-07-21 11:14:01,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:01,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615511086] [2022-07-21 11:14:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:01,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:01,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:01,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:14:01,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 11:14:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:04,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 2353 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:14:04,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-21 11:14:04,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:04,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:04,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615511086] [2022-07-21 11:14:04,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615511086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:04,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:04,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:14:04,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301168360] [2022-07-21 11:14:04,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:04,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:14:04,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:04,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:14:04,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:14:04,406 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) [2022-07-21 11:14:04,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:04,737 INFO L93 Difference]: Finished difference Result 19365 states and 29130 transitions. [2022-07-21 11:14:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:14:04,742 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 [2022-07-21 11:14:04,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:04,806 INFO L225 Difference]: With dead ends: 19365 [2022-07-21 11:14:04,806 INFO L226 Difference]: Without dead ends: 11876 [2022-07-21 11:14:04,827 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 [2022-07-21 11:14:04,828 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 [2022-07-21 11:14:04,828 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] [2022-07-21 11:14:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11876 states. [2022-07-21 11:14:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11876 to 7510. [2022-07-21 11:14:05,163 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) [2022-07-21 11:14:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11067 transitions. [2022-07-21 11:14:05,184 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11067 transitions. Word has length 178 [2022-07-21 11:14:05,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:05,184 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 11067 transitions. [2022-07-21 11:14:05,185 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) [2022-07-21 11:14:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11067 transitions. [2022-07-21 11:14:05,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-21 11:14:05,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:05,195 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] [2022-07-21 11:14:05,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 11:14:05,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:14:05,411 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 711929151, now seen corresponding path program 1 times [2022-07-21 11:14:05,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:05,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181056753] [2022-07-21 11:14:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:05,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:05,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:05,415 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:14:05,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 11:14:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:08,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 11:14:08,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:08,603 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-07-21 11:14:08,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:08,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:08,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181056753] [2022-07-21 11:14:08,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181056753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:08,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:08,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:14:08,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622514444] [2022-07-21 11:14:08,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:08,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:14:08,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:08,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:14:08,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:14:08,604 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) [2022-07-21 11:14:12,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:12,997 INFO L93 Difference]: Finished difference Result 19089 states and 28686 transitions. [2022-07-21 11:14:12,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:14:12,998 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 [2022-07-21 11:14:12,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:13,040 INFO L225 Difference]: With dead ends: 19089 [2022-07-21 11:14:13,040 INFO L226 Difference]: Without dead ends: 11596 [2022-07-21 11:14:13,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:14:13,062 INFO L413 NwaCegarLoop]: 3536 mSDtfsCounter, 1005 mSDsluCounter, 12895 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:13,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 16431 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-21 11:14:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11596 states. [2022-07-21 11:14:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11596 to 7510. [2022-07-21 11:14:13,475 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) [2022-07-21 11:14:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 11063 transitions. [2022-07-21 11:14:13,500 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 11063 transitions. Word has length 182 [2022-07-21 11:14:13,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:13,501 INFO L495 AbstractCegarLoop]: Abstraction has 7510 states and 11063 transitions. [2022-07-21 11:14:13,501 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) [2022-07-21 11:14:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 11063 transitions. [2022-07-21 11:14:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-21 11:14:13,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:13,514 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] [2022-07-21 11:14:13,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 11:14:13,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:14:13,736 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash 773968765, now seen corresponding path program 1 times [2022-07-21 11:14:13,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:13,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758782636] [2022-07-21 11:14:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:13,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:13,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:13,739 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:14:13,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 11:14:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:17,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:14:17,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-21 11:14:17,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:17,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:17,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758782636] [2022-07-21 11:14:17,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758782636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:17,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:17,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:14:17,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717542946] [2022-07-21 11:14:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:17,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:14:17,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:17,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:14:17,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:14:17,757 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) [2022-07-21 11:14:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:20,128 INFO L93 Difference]: Finished difference Result 23455 states and 35691 transitions. [2022-07-21 11:14:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:14:20,128 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 [2022-07-21 11:14:20,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:20,177 INFO L225 Difference]: With dead ends: 23455 [2022-07-21 11:14:20,178 INFO L226 Difference]: Without dead ends: 15962 [2022-07-21 11:14:20,200 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 [2022-07-21 11:14:20,204 INFO L413 NwaCegarLoop]: 4849 mSDtfsCounter, 2087 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:20,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2481 Valid, 10949 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 11:14:20,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-07-21 11:14:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 7518. [2022-07-21 11:14:20,584 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) [2022-07-21 11:14:20,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 11071 transitions. [2022-07-21 11:14:20,606 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 11071 transitions. Word has length 182 [2022-07-21 11:14:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:20,606 INFO L495 AbstractCegarLoop]: Abstraction has 7518 states and 11071 transitions. [2022-07-21 11:14:20,607 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) [2022-07-21 11:14:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 11071 transitions. [2022-07-21 11:14:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 11:14:20,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:20,614 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] [2022-07-21 11:14:20,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 11:14:20,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:14:20,828 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:20,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:20,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1073399476, now seen corresponding path program 1 times [2022-07-21 11:14:20,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:20,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407232667] [2022-07-21 11:14:20,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:20,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:20,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:20,831 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) [2022-07-21 11:14:20,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 11:14:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:14:23,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:14:23,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:14:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2022-07-21 11:14:23,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:14:23,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:14:23,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407232667] [2022-07-21 11:14:23,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407232667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:14:23,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:14:23,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:14:23,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249935069] [2022-07-21 11:14:23,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:14:23,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:14:23,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:14:23,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:14:23,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:14:23,646 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) [2022-07-21 11:14:24,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:14:24,474 INFO L93 Difference]: Finished difference Result 19121 states and 28714 transitions. [2022-07-21 11:14:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:14:24,475 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 [2022-07-21 11:14:24,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:14:24,512 INFO L225 Difference]: With dead ends: 19121 [2022-07-21 11:14:24,512 INFO L226 Difference]: Without dead ends: 11620 [2022-07-21 11:14:24,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:14:24,535 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:14:24,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 13294 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 11:14:24,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2022-07-21 11:14:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 7518. [2022-07-21 11:14:24,938 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) [2022-07-21 11:14:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 11067 transitions. [2022-07-21 11:14:24,964 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 11067 transitions. Word has length 183 [2022-07-21 11:14:24,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:14:24,964 INFO L495 AbstractCegarLoop]: Abstraction has 7518 states and 11067 transitions. [2022-07-21 11:14:24,965 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) [2022-07-21 11:14:24,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 11067 transitions. [2022-07-21 11:14:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 11:14:24,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:14:24,973 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] [2022-07-21 11:14:25,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 11:14:25,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:14:25,188 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:14:25,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:14:25,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1941599003, now seen corresponding path program 1 times [2022-07-21 11:14:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:14:25,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437910344] [2022-07-21 11:14:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:14:25,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:14:25,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:14:25,197 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) [2022-07-21 11:14:25,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process