./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:35:14,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:35:14,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:35:14,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:35:14,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:35:14,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:35:14,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:35:14,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:35:14,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:35:14,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:35:14,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:35:14,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:35:14,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:35:14,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:35:14,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:35:14,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:35:14,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:35:14,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:35:14,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:35:14,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:35:14,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:35:14,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:35:14,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:35:14,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:35:14,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:35:14,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:35:14,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:35:14,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:35:14,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:35:14,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:35:14,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:35:14,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:35:14,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:35:14,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:35:14,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:35:14,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:35:14,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:35:14,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:35:14,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:35:14,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:35:14,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:35:14,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:35:14,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:35:14,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:35:14,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:35:14,949 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:35:14,949 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:35:14,950 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:35:14,950 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:35:14,950 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:35:14,950 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:35:14,951 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:35:14,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:35:14,958 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:35:14,958 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:35:14,958 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:35:14,959 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:35:14,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:35:14,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:35:14,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:35:14,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:35:14,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:35:14,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:35:14,961 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:35:14,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:35:14,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:35:14,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:35:14,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:35:14,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:35:14,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:35:14,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:35:14,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:35:14,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:35:14,965 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:35:14,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:35:14,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:35:14,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:35:14,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:35:14,966 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 [2021-11-03 05:35:15,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:35:15,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:35:15,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:35:15,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:35:15,343 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:35:15,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-03 05:35:15,428 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/7ba1d98c2/6ca5706db4294cdc89ee40ed6d34fa1f/FLAGfef0442a8 [2021-11-03 05:35:16,307 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:35:16,309 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-03 05:35:16,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/7ba1d98c2/6ca5706db4294cdc89ee40ed6d34fa1f/FLAGfef0442a8 [2021-11-03 05:35:16,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/7ba1d98c2/6ca5706db4294cdc89ee40ed6d34fa1f [2021-11-03 05:35:16,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:35:16,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:35:16,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:35:16,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:35:16,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:35:16,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:35:16" (1/1) ... [2021-11-03 05:35:16,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13748c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:16, skipping insertion in model container [2021-11-03 05:35:16,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:35:16" (1/1) ... [2021-11-03 05:35:16,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:35:16,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:35:17,248 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-03 05:35:17,256 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-03 05:35:17,284 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:35:17,290 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:35:18,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,462 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,463 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,466 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:18,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:35:18,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:35:18,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:35:18,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:35:18,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:35:18,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:35:18,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:35:18,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:35:18,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:35:18,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:35:19,174 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:35:19,194 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:35:19,202 INFO L168 Benchmark]: Toolchain (without parser) took 2450.79 ms. Allocated memory was 94.4 MB in the beginning and 140.5 MB in the end (delta: 46.1 MB). Free memory was 48.2 MB in the beginning and 73.5 MB in the end (delta: -25.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:35:19,203 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:35:19,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2447.99 ms. Allocated memory was 94.4 MB in the beginning and 140.5 MB in the end (delta: 46.1 MB). Free memory was 48.0 MB in the beginning and 73.5 MB in the end (delta: -25.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:35:19,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2447.99 ms. Allocated memory was 94.4 MB in the beginning and 140.5 MB in the end (delta: 46.1 MB). Free memory was 48.0 MB in the beginning and 73.5 MB in the end (delta: -25.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) 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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:35:21,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:35:21,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:35:21,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:35:21,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:35:21,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:35:21,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:35:21,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:35:21,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:35:21,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:35:21,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:35:21,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:35:21,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:35:21,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:35:21,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:35:21,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:35:21,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:35:21,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:35:21,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:35:21,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:35:21,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:35:21,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:35:21,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:35:21,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:35:21,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:35:21,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:35:21,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:35:21,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:35:21,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:35:21,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:35:21,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:35:21,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:35:21,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:35:21,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:35:21,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:35:21,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:35:21,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:35:21,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:35:21,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:35:21,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:35:21,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:35:21,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:35:21,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:35:21,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:35:21,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:35:21,750 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:35:21,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:35:21,750 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:35:21,751 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:35:21,751 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:35:21,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:35:21,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:35:21,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:35:21,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:35:21,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:35:21,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:35:21,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:35:21,754 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:35:21,754 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:35:21,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:35:21,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:35:21,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:35:21,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:35:21,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:35:21,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:35:21,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:35:21,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:35:21,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:35:21,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:35:21,756 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:35:21,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:35:21,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:35:21,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:35:21,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:35:21,757 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b17f77ffc9b60dd6edfa1d1cf71f248568a9cd6bbbccab8c3e61d5773c4168 [2021-11-03 05:35:22,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:35:22,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:35:22,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:35:22,137 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:35:22,139 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:35:22,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-03 05:35:22,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/188a2bdfd/1435c01191114a2f8822ea935e33158d/FLAGc01c704a0 [2021-11-03 05:35:23,018 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:35:23,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2021-11-03 05:35:23,062 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/188a2bdfd/1435c01191114a2f8822ea935e33158d/FLAGc01c704a0 [2021-11-03 05:35:23,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/data/188a2bdfd/1435c01191114a2f8822ea935e33158d [2021-11-03 05:35:23,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:35:23,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:35:23,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:35:23,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:35:23,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:35:23,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:35:23" (1/1) ... [2021-11-03 05:35:23,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b1b389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:23, skipping insertion in model container [2021-11-03 05:35:23,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:35:23" (1/1) ... [2021-11-03 05:35:23,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:35:23,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:35:24,030 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-03 05:35:24,039 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-03 05:35:24,073 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:35:24,090 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:35:25,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:25,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:35:25,655 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:35:25,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:35:25,657 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:35:25,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:35:25,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:35:25,659 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:35:25,660 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:35:25,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:35:25,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:35:25,905 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:35:26,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:35:26,528 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:35:26,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:35:26,638 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-03 05:35:26,638 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-03 05:35:26,645 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:35:26,646 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:35:26,713 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,714 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,714 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:35:26,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:35:26,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:35:26,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:35:26,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:35:26,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:35:26,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:35:26,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:35:26,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:35:26,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:35:26,780 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:35:26,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:26,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:35:27,014 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:35:27,038 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2021-11-03 05:35:27,039 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2021-11-03 05:35:27,041 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:35:27,042 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:35:27,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:35:27,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:35:27,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:35:27,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:35:27,125 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:35:27,125 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:35:27,126 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:35:27,126 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:35:27,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:35:27,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:35:27,186 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:35:27,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,362 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,363 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:35:27,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:35:27,744 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:35:27,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27 WrapperNode [2021-11-03 05:35:27,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:35:27,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:35:27,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:35:27,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:35:27,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:27,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:35:28,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:35:28,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:35:28,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:35:28,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:35:28,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:35:28,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:35:28,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:35:28,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (1/1) ... [2021-11-03 05:35:28,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:35:28,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:35:28,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:35:28,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:35:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 05:35:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:35:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:35:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:35:28,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:35:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 05:35:28,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:35:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 05:35:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:35:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:35:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:35:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:35:28,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:35:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:35:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:35:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:35:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:35:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:35:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:35:43,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:35:43,134 INFO L299 CfgBuilder]: Removed 150 assume(true) statements. [2021-11-03 05:35:43,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:35:43 BoogieIcfgContainer [2021-11-03 05:35:43,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:35:43,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:35:43,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:35:43,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:35:43,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:35:23" (1/3) ... [2021-11-03 05:35:43,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261767f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:35:43, skipping insertion in model container [2021-11-03 05:35:43,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:35:27" (2/3) ... [2021-11-03 05:35:43,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261767f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:35:43, skipping insertion in model container [2021-11-03 05:35:43,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:35:43" (3/3) ... [2021-11-03 05:35:43,144 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_done_harness.i [2021-11-03 05:35:43,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:35:43,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-03 05:35:43,201 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:35:43,207 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:35:43,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-03 05:35:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 197 states have (on average 1.4720812182741116) internal successors, (290), 205 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:43,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 05:35:43,237 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:43,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:35:43,239 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:35:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:43,245 INFO L85 PathProgramCache]: Analyzing trace with hash -11255452, now seen corresponding path program 1 times [2021-11-03 05:35:43,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:43,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432178479] [2021-11-03 05:35:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:43,268 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:43,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:43,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:35:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:47,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:35:47,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:47,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:47,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:47,906 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:47,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432178479] [2021-11-03 05:35:47,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432178479] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:47,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:47,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:35:47,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991682415] [2021-11-03 05:35:47,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:35:47,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:47,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:35:47,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:35:47,940 INFO L87 Difference]: Start difference. First operand has 206 states, 197 states have (on average 1.4720812182741116) internal successors, (290), 205 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:47,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:47,993 INFO L93 Difference]: Finished difference Result 408 states and 575 transitions. [2021-11-03 05:35:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:35:47,995 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 05:35:47,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:48,010 INFO L225 Difference]: With dead ends: 408 [2021-11-03 05:35:48,011 INFO L226 Difference]: Without dead ends: 200 [2021-11-03 05:35:48,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:35:48,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-03 05:35:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-03 05:35:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 192 states have (on average 1.3802083333333333) internal successors, (265), 199 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 265 transitions. [2021-11-03 05:35:48,091 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 265 transitions. Word has length 58 [2021-11-03 05:35:48,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:48,092 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 265 transitions. [2021-11-03 05:35:48,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:48,092 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 265 transitions. [2021-11-03 05:35:48,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 05:35:48,100 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:48,100 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:35:48,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:48,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:48,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:35:48,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:48,302 INFO L85 PathProgramCache]: Analyzing trace with hash 502328866, now seen corresponding path program 1 times [2021-11-03 05:35:48,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:48,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479508417] [2021-11-03 05:35:48,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:48,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:48,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:48,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:48,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:35:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:52,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:35:52,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:52,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:53,024 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:53,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479508417] [2021-11-03 05:35:53,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479508417] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:53,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:53,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:35:53,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614072997] [2021-11-03 05:35:53,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:35:53,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:53,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:35:53,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:35:53,028 INFO L87 Difference]: Start difference. First operand 200 states and 265 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:53,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:53,421 INFO L93 Difference]: Finished difference Result 562 states and 751 transitions. [2021-11-03 05:35:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:35:53,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 05:35:53,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:53,425 INFO L225 Difference]: With dead ends: 562 [2021-11-03 05:35:53,425 INFO L226 Difference]: Without dead ends: 384 [2021-11-03 05:35:53,427 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:35:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-03 05:35:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 206. [2021-11-03 05:35:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 198 states have (on average 1.3686868686868687) internal successors, (271), 205 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:53,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 271 transitions. [2021-11-03 05:35:53,442 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 271 transitions. Word has length 58 [2021-11-03 05:35:53,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:53,443 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 271 transitions. [2021-11-03 05:35:53,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 271 transitions. [2021-11-03 05:35:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 05:35:53,445 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:53,445 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:35:53,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 05:35:53,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:53,658 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:35:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:53,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1974054530, now seen corresponding path program 1 times [2021-11-03 05:35:53,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:53,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743943902] [2021-11-03 05:35:53,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:53,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:53,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:53,667 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:53,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:35:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:57,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:35:57,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:57,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:58,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:58,047 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:58,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743943902] [2021-11-03 05:35:58,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743943902] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:58,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:58,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:35:58,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541358082] [2021-11-03 05:35:58,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:35:58,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:58,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:35:58,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:35:58,050 INFO L87 Difference]: Start difference. First operand 206 states and 271 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:58,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:58,252 INFO L93 Difference]: Finished difference Result 389 states and 515 transitions. [2021-11-03 05:35:58,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:35:58,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-03 05:35:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:58,255 INFO L225 Difference]: With dead ends: 389 [2021-11-03 05:35:58,255 INFO L226 Difference]: Without dead ends: 206 [2021-11-03 05:35:58,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:35:58,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-03 05:35:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 200. [2021-11-03 05:35:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 192 states have (on average 1.359375) internal successors, (261), 199 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 261 transitions. [2021-11-03 05:35:58,275 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 261 transitions. Word has length 62 [2021-11-03 05:35:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:58,276 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 261 transitions. [2021-11-03 05:35:58,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:35:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 261 transitions. [2021-11-03 05:35:58,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 05:35:58,281 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:58,282 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:35:58,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 05:35:58,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:58,505 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:35:58,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:58,506 INFO L85 PathProgramCache]: Analyzing trace with hash 671141491, now seen corresponding path program 1 times [2021-11-03 05:35:58,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:58,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944578469] [2021-11-03 05:35:58,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:58,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:58,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:58,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:58,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:36:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:02,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 05:36:02,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:03,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:36:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:03,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:03,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-03 05:36:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:04,308 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:04,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944578469] [2021-11-03 05:36:04,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944578469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:04,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:04,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 05:36:04,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254660123] [2021-11-03 05:36:04,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:36:04,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:04,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:36:04,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:36:04,311 INFO L87 Difference]: Start difference. First operand 200 states and 261 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:11,922 INFO L93 Difference]: Finished difference Result 571 states and 745 transitions. [2021-11-03 05:36:11,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 05:36:11,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 05:36:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:11,927 INFO L225 Difference]: With dead ends: 571 [2021-11-03 05:36:11,927 INFO L226 Difference]: Without dead ends: 406 [2021-11-03 05:36:11,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:36:11,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2021-11-03 05:36:11,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 305. [2021-11-03 05:36:11,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 297 states have (on average 1.3905723905723906) internal successors, (413), 304 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 413 transitions. [2021-11-03 05:36:11,949 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 413 transitions. Word has length 68 [2021-11-03 05:36:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:11,950 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 413 transitions. [2021-11-03 05:36:11,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 413 transitions. [2021-11-03 05:36:11,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 05:36:11,952 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:11,952 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:36:12,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:12,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:12,166 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:36:12,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:12,166 INFO L85 PathProgramCache]: Analyzing trace with hash -226251787, now seen corresponding path program 1 times [2021-11-03 05:36:12,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:12,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287827208] [2021-11-03 05:36:12,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:12,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:12,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:12,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:12,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:36:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:16,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:36:16,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:16,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:16,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:17,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:17,121 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:17,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287827208] [2021-11-03 05:36:17,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287827208] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:17,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:17,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:36:17,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037379155] [2021-11-03 05:36:17,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:36:17,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:17,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:36:17,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:36:17,128 INFO L87 Difference]: Start difference. First operand 305 states and 413 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:17,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:17,376 INFO L93 Difference]: Finished difference Result 576 states and 788 transitions. [2021-11-03 05:36:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:36:17,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 05:36:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:17,381 INFO L225 Difference]: With dead ends: 576 [2021-11-03 05:36:17,381 INFO L226 Difference]: Without dead ends: 303 [2021-11-03 05:36:17,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:17,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-03 05:36:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2021-11-03 05:36:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 295 states have (on average 1.3796610169491526) internal successors, (407), 302 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 407 transitions. [2021-11-03 05:36:17,399 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 407 transitions. Word has length 68 [2021-11-03 05:36:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:17,401 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 407 transitions. [2021-11-03 05:36:17,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 407 transitions. [2021-11-03 05:36:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 05:36:17,408 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:17,409 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:36:17,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:17,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:17,630 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:36:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:17,630 INFO L85 PathProgramCache]: Analyzing trace with hash 870506126, now seen corresponding path program 1 times [2021-11-03 05:36:17,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:17,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921846552] [2021-11-03 05:36:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:17,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:17,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:17,634 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:17,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:36:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:21,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 05:36:21,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:22,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:36:22,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-03 05:36:22,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:22,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:22,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-03 05:36:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:23,346 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:23,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921846552] [2021-11-03 05:36:23,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921846552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:23,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:23,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 05:36:23,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038984066] [2021-11-03 05:36:23,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:36:23,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:23,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:36:23,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:36:23,349 INFO L87 Difference]: Start difference. First operand 303 states and 407 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:31,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:31,050 INFO L93 Difference]: Finished difference Result 907 states and 1199 transitions. [2021-11-03 05:36:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 05:36:31,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-03 05:36:31,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:31,056 INFO L225 Difference]: With dead ends: 907 [2021-11-03 05:36:31,056 INFO L226 Difference]: Without dead ends: 638 [2021-11-03 05:36:31,057 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:36:31,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-11-03 05:36:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 304. [2021-11-03 05:36:31,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.375) internal successors, (407), 303 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 407 transitions. [2021-11-03 05:36:31,077 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 407 transitions. Word has length 70 [2021-11-03 05:36:31,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:31,077 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 407 transitions. [2021-11-03 05:36:31,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:31,078 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 407 transitions. [2021-11-03 05:36:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 05:36:31,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:31,079 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:36:31,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 05:36:31,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:31,297 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:36:31,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:31,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1935032955, now seen corresponding path program 1 times [2021-11-03 05:36:31,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:31,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754180171] [2021-11-03 05:36:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:31,302 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:31,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:31,303 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:31,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:36:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:35,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:36:35,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:35,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:36,171 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:36,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754180171] [2021-11-03 05:36:36,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754180171] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:36,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:36,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:36:36,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977480953] [2021-11-03 05:36:36,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:36:36,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:36,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:36:36,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:36:36,173 INFO L87 Difference]: Start difference. First operand 304 states and 407 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:36,736 INFO L93 Difference]: Finished difference Result 545 states and 736 transitions. [2021-11-03 05:36:36,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:36:36,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-03 05:36:36,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:36,742 INFO L225 Difference]: With dead ends: 545 [2021-11-03 05:36:36,742 INFO L226 Difference]: Without dead ends: 304 [2021-11-03 05:36:36,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:36,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-03 05:36:36,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-03 05:36:36,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.3581081081081081) internal successors, (402), 303 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:36,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 402 transitions. [2021-11-03 05:36:36,759 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 402 transitions. Word has length 71 [2021-11-03 05:36:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:36,759 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 402 transitions. [2021-11-03 05:36:36,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 402 transitions. [2021-11-03 05:36:36,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 05:36:36,761 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:36,761 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:36:36,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 05:36:36,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:36,974 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:36:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:36,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1757739825, now seen corresponding path program 1 times [2021-11-03 05:36:36,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:36,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161074342] [2021-11-03 05:36:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:36,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:36,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:36,980 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:36,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:36:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:41,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:36:41,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:41,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:36:41,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-03 05:36:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:41,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:42,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:42,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161074342] [2021-11-03 05:36:42,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161074342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:42,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:42,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 05:36:42,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442462545] [2021-11-03 05:36:42,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:36:42,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:42,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:36:42,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:36:42,179 INFO L87 Difference]: Start difference. First operand 304 states and 402 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:50,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:50,131 INFO L93 Difference]: Finished difference Result 569 states and 744 transitions. [2021-11-03 05:36:50,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:36:50,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-03 05:36:50,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:50,136 INFO L225 Difference]: With dead ends: 569 [2021-11-03 05:36:50,136 INFO L226 Difference]: Without dead ends: 328 [2021-11-03 05:36:50,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:36:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-03 05:36:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 304. [2021-11-03 05:36:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 296 states have (on average 1.347972972972973) internal successors, (399), 303 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 399 transitions. [2021-11-03 05:36:50,157 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 399 transitions. Word has length 73 [2021-11-03 05:36:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:50,158 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 399 transitions. [2021-11-03 05:36:50,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 399 transitions. [2021-11-03 05:36:50,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 05:36:50,159 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:50,159 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:36:50,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:50,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:50,371 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:36:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:50,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1216823460, now seen corresponding path program 1 times [2021-11-03 05:36:50,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:50,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023385954] [2021-11-03 05:36:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:50,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:50,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:50,376 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:50,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:36:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:54,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:36:54,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:55,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:36:55,317 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:55,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023385954] [2021-11-03 05:36:55,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023385954] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:55,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:55,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:36:55,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58609086] [2021-11-03 05:36:55,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:36:55,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:36:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:36:55,319 INFO L87 Difference]: Start difference. First operand 304 states and 399 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:55,636 INFO L93 Difference]: Finished difference Result 598 states and 780 transitions. [2021-11-03 05:36:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:36:55,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-03 05:36:55,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:55,639 INFO L225 Difference]: With dead ends: 598 [2021-11-03 05:36:55,639 INFO L226 Difference]: Without dead ends: 350 [2021-11-03 05:36:55,640 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-03 05:36:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 301. [2021-11-03 05:36:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 293 states have (on average 1.31740614334471) internal successors, (386), 300 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 386 transitions. [2021-11-03 05:36:55,662 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 386 transitions. Word has length 79 [2021-11-03 05:36:55,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:55,663 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 386 transitions. [2021-11-03 05:36:55,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:36:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 386 transitions. [2021-11-03 05:36:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-03 05:36:55,664 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:55,665 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:36:55,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:55,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:55,878 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:36:55,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:55,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1229639887, now seen corresponding path program 1 times [2021-11-03 05:36:55,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:55,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028166085] [2021-11-03 05:36:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:55,884 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:55,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:55,885 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:55,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:37:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:00,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:37:00,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:37:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:00,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:37:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:00,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:37:00,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028166085] [2021-11-03 05:37:00,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028166085] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:37:00,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:37:00,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:37:00,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897936699] [2021-11-03 05:37:00,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:37:00,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:37:00,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:37:00,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:37:00,976 INFO L87 Difference]: Start difference. First operand 301 states and 386 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:01,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:37:01,464 INFO L93 Difference]: Finished difference Result 612 states and 784 transitions. [2021-11-03 05:37:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:37:01,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-03 05:37:01,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:37:01,467 INFO L225 Difference]: With dead ends: 612 [2021-11-03 05:37:01,467 INFO L226 Difference]: Without dead ends: 356 [2021-11-03 05:37:01,468 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:37:01,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-03 05:37:01,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 313. [2021-11-03 05:37:01,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 305 states have (on average 1.2950819672131149) internal successors, (395), 312 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 395 transitions. [2021-11-03 05:37:01,489 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 395 transitions. Word has length 89 [2021-11-03 05:37:01,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:37:01,490 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 395 transitions. [2021-11-03 05:37:01,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 395 transitions. [2021-11-03 05:37:01,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-03 05:37:01,492 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:01,492 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:01,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:37:01,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:37:01,710 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:37:01,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash 506049873, now seen corresponding path program 1 times [2021-11-03 05:37:01,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:01,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034868402] [2021-11-03 05:37:01,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:01,715 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:01,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:01,717 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:01,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:37:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:06,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:37:06,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:37:06,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-03 05:37:06,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-03 05:37:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:06,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:37:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:07,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:37:07,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034868402] [2021-11-03 05:37:07,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034868402] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:37:07,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:37:07,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:37:07,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364014666] [2021-11-03 05:37:07,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:37:07,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:37:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:37:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:37:07,308 INFO L87 Difference]: Start difference. First operand 313 states and 395 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:18,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:37:18,757 INFO L93 Difference]: Finished difference Result 623 states and 793 transitions. [2021-11-03 05:37:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:37:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-03 05:37:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:37:18,763 INFO L225 Difference]: With dead ends: 623 [2021-11-03 05:37:18,763 INFO L226 Difference]: Without dead ends: 360 [2021-11-03 05:37:18,764 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:37:18,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-03 05:37:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 312. [2021-11-03 05:37:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 304 states have (on average 1.269736842105263) internal successors, (386), 311 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 386 transitions. [2021-11-03 05:37:18,784 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 386 transitions. Word has length 93 [2021-11-03 05:37:18,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:37:18,784 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 386 transitions. [2021-11-03 05:37:18,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 386 transitions. [2021-11-03 05:37:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-03 05:37:18,786 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:18,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:18,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:37:19,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:37:19,002 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:37:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -187262311, now seen corresponding path program 1 times [2021-11-03 05:37:19,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:19,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268547665] [2021-11-03 05:37:19,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:19,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:19,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:19,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:19,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:37:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:24,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:37:24,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:37:24,941 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:37:24,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 9 [2021-11-03 05:37:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:25,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:37:26,777 INFO L354 Elim1Store]: treesize reduction 221, result has 42.6 percent of original size [2021-11-03 05:37:26,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 68 treesize of output 183 [2021-11-03 05:39:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:39:36,555 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:39:36,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268547665] [2021-11-03 05:39:36,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268547665] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:39:36,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:39:36,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 11 [2021-11-03 05:39:36,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250689381] [2021-11-03 05:39:36,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 05:39:36,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:39:36,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 05:39:36,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:39:36,557 INFO L87 Difference]: Start difference. First operand 312 states and 386 transitions. Second operand has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:39:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:39:51,362 INFO L93 Difference]: Finished difference Result 684 states and 854 transitions. [2021-11-03 05:39:51,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 05:39:51,365 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-03 05:39:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:39:51,370 INFO L225 Difference]: With dead ends: 684 [2021-11-03 05:39:51,370 INFO L226 Difference]: Without dead ends: 522 [2021-11-03 05:39:51,371 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2021-11-03 05:39:51,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2021-11-03 05:39:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 364. [2021-11-03 05:39:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 356 states have (on average 1.2808988764044944) internal successors, (456), 363 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:39:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 456 transitions. [2021-11-03 05:39:51,398 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 456 transitions. Word has length 95 [2021-11-03 05:39:51,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:39:51,398 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 456 transitions. [2021-11-03 05:39:51,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:39:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 456 transitions. [2021-11-03 05:39:51,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-03 05:39:51,400 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:39:51,400 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:39:51,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:39:51,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:39:51,622 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:39:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:39:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash 622084315, now seen corresponding path program 1 times [2021-11-03 05:39:51,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:39:51,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858606429] [2021-11-03 05:39:51,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:39:51,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:39:51,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:39:51,626 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:39:51,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:39:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:39:56,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 05:39:56,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:39:57,805 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:39:57,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 9 [2021-11-03 05:39:57,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:39:57,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:39:59,648 INFO L354 Elim1Store]: treesize reduction 221, result has 42.6 percent of original size [2021-11-03 05:39:59,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 68 treesize of output 183 [2021-11-03 05:42:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:05,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:05,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858606429] [2021-11-03 05:42:05,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858606429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:05,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:05,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 13 [2021-11-03 05:42:05,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907851158] [2021-11-03 05:42:05,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 05:42:05,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:05,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 05:42:05,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:42:05,878 INFO L87 Difference]: Start difference. First operand 364 states and 456 transitions. Second operand has 13 states, 13 states have (on average 12.0) internal successors, (156), 13 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:19,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:19,133 INFO L93 Difference]: Finished difference Result 660 states and 817 transitions. [2021-11-03 05:42:19,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-03 05:42:19,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.0) internal successors, (156), 13 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-03 05:42:19,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:19,136 INFO L225 Difference]: With dead ends: 660 [2021-11-03 05:42:19,136 INFO L226 Difference]: Without dead ends: 520 [2021-11-03 05:42:19,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=295, Invalid=761, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 05:42:19,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2021-11-03 05:42:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 368. [2021-11-03 05:42:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 360 states have (on average 1.2666666666666666) internal successors, (456), 367 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 456 transitions. [2021-11-03 05:42:19,165 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 456 transitions. Word has length 95 [2021-11-03 05:42:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:19,166 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 456 transitions. [2021-11-03 05:42:19,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.0) internal successors, (156), 13 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 456 transitions. [2021-11-03 05:42:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 05:42:19,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:19,167 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:19,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-03 05:42:19,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:19,390 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:42:19,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:19,390 INFO L85 PathProgramCache]: Analyzing trace with hash 822709213, now seen corresponding path program 1 times [2021-11-03 05:42:19,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:19,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920109761] [2021-11-03 05:42:19,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:19,393 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:19,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:19,394 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:19,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2351ccf5-8e52-4679-b264-710a1cc82c02/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 05:42:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:24,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 05:42:24,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:26,843 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:42:26,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 121 treesize of output 41 [2021-11-03 05:42:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:27,026 INFO L328 TraceCheckSpWp]: Computing backward predicates...