./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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 fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:53:49,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:53:49,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:53:49,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:53:49,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:53:49,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:53:49,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:53:49,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:53:49,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:53:49,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:53:49,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:53:49,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:53:49,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:53:49,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:53:49,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:53:49,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:53:49,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:53:49,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:53:49,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:53:49,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:53:49,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:53:49,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:53:49,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:53:49,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:53:49,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:53:49,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:53:49,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:53:49,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:53:49,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:53:49,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:53:49,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:53:49,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:53:49,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:53:49,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:53:49,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:53:49,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:53:49,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:53:49,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:53:49,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:53:49,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:53:49,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:53:49,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:53:49,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:53:49,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:53:49,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:53:49,778 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:53:49,778 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:53:49,779 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:53:49,779 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:53:49,779 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:53:49,780 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:53:49,780 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:53:49,780 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:53:49,780 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:53:49,781 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:53:49,781 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:53:49,781 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:53:49,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:53:49,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:53:49,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:53:49,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:53:49,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:53:49,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:53:49,783 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:53:49,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:53:49,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:53:49,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:53:49,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:53:49,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:53:49,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:49,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:53:49,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:53:49,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:53:49,786 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:53:49,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:53:49,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:53:49,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:53:49,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:53:49,787 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-03 03:53:50,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:53:50,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:53:50,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:53:50,042 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:53:50,043 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:53:50,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-03 03:53:50,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/bb2399b5c/ad5c3cdc06d24a42bed82328565ba878/FLAG84c763b62 [2021-11-03 03:53:50,933 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:53:50,934 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-03 03:53:50,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/bb2399b5c/ad5c3cdc06d24a42bed82328565ba878/FLAG84c763b62 [2021-11-03 03:53:51,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/bb2399b5c/ad5c3cdc06d24a42bed82328565ba878 [2021-11-03 03:53:51,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:53:51,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:53:51,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:51,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:53:51,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:53:51,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:51" (1/1) ... [2021-11-03 03:53:51,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e4151c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:51, skipping insertion in model container [2021-11-03 03:53:51,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:51" (1/1) ... [2021-11-03 03:53:51,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:53:51,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:51,937 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-03 03:53:51,948 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-03 03:53:51,972 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:53:51,985 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:53:52,801 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:53:52,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,931 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,941 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:52,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:53,287 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:53:53,289 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:53:53,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:53:53,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:53:53,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:53:53,293 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:53:53,293 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:53:53,294 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:53:53,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:53:53,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:53:53,423 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.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:53:53,430 INFO L168 Benchmark]: Toolchain (without parser) took 1933.17 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 57.1 MB in the beginning and 70.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 03:53:53,430 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:53:53,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1930.87 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 70.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 03:53:53,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 96.5 MB. Free memory is still 50.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1930.87 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 70.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 14.7 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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 fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:53:55,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:53:55,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:53:55,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:53:55,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:53:55,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:53:55,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:53:55,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:53:55,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:53:55,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:53:55,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:53:55,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:53:55,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:53:55,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:53:55,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:53:55,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:53:55,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:53:55,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:53:55,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:53:55,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:53:55,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:53:55,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:53:55,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:53:55,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:53:55,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:53:55,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:53:55,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:53:55,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:53:55,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:53:55,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:53:55,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:53:55,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:53:55,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:53:55,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:53:55,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:53:55,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:53:55,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:53:55,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:53:55,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:53:55,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:53:55,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:53:55,739 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:53:55,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:53:55,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:53:55,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:53:55,773 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:53:55,773 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:53:55,773 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:53:55,774 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:53:55,774 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:53:55,774 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:53:55,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:53:55,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:53:55,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:53:55,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:53:55,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:53:55,778 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:53:55,778 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:53:55,778 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:53:55,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:53:55,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:53:55,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:53:55,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:53:55,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:53:55,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:53:55,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:55,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:53:55,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:53:55,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:53:55,781 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:53:55,781 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:55,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:53:55,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:53:55,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:53:55,782 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-03 03:53:56,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:53:56,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:53:56,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:53:56,208 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:53:56,209 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:53:56,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-03 03:53:56,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/c74fe01ee/09a76a8de4f64a20b597cbc800904818/FLAG040423901 [2021-11-03 03:53:57,234 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:53:57,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-03 03:53:57,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/c74fe01ee/09a76a8de4f64a20b597cbc800904818/FLAG040423901 [2021-11-03 03:53:57,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/data/c74fe01ee/09a76a8de4f64a20b597cbc800904818 [2021-11-03 03:53:57,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:53:57,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:53:57,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:57,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:53:57,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:53:57,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:57" (1/1) ... [2021-11-03 03:53:57,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29dbb191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:57, skipping insertion in model container [2021-11-03 03:53:57,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:57" (1/1) ... [2021-11-03 03:53:57,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:53:57,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:58,271 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-03 03:53:58,278 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-03 03:53:58,301 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:53:58,307 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:53:59,340 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:53:59,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,449 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:53:59,853 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:53:59,855 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:53:59,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:53:59,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:53:59,858 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:53:59,858 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:53:59,859 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:53:59,860 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:53:59,861 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:53:59,861 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:54:00,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:00,102 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:54:00,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:00,151 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-03 03:54:00,152 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-03 03:54:00,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:54:00,154 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:54:00,184 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:54:00,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,208 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,208 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,246 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:54:00,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:54:00,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:54:00,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:54:00,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:54:00,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:54:00,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:54:00,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:54:00,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:54:00,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:54:00,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:00,365 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:54:00,377 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-03 03:54:00,378 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_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-03 03:54:00,380 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:54:00,381 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:54:00,410 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:54:00,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:54:00,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:54:00,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:54:00,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:54:00,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:54:00,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:54:00,498 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:54:00,498 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:54:00,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:54:00,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:54:00,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:00,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:00,829 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:54:00,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00 WrapperNode [2021-11-03 03:54:00,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:00,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:00,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:54:00,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:54:00,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:00,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:01,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:54:01,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:54:01,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:54:01,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:54:01,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:54:01,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:54:01,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:54:01,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (1/1) ... [2021-11-03 03:54:01,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:01,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:01,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:54:01,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:54:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:54:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:54:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:54:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:54:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:54:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:54:01,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:54:01,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:54:01,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:54:01,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:54:01,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:54:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:54:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:54:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:54:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:54:01,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:54:16,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:54:16,926 INFO L299 CfgBuilder]: Removed 209 assume(true) statements. [2021-11-03 03:54:16,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:16 BoogieIcfgContainer [2021-11-03 03:54:16,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:54:16,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:54:16,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:54:16,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:54:16,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:53:57" (1/3) ... [2021-11-03 03:54:16,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380def95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:16, skipping insertion in model container [2021-11-03 03:54:16,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:00" (2/3) ... [2021-11-03 03:54:16,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380def95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:16, skipping insertion in model container [2021-11-03 03:54:16,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:16" (3/3) ... [2021-11-03 03:54:16,944 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2021-11-03 03:54:16,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:54:16,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-03 03:54:17,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:54:17,027 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 03:54:17,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-03 03:54:17,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 267 states have (on average 1.4644194756554307) internal successors, (391), 280 states have internal predecessors, (391), 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 03:54:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 03:54:17,062 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:17,063 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] [2021-11-03 03:54:17,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:54:17,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1877814829, now seen corresponding path program 1 times [2021-11-03 03:54:17,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:17,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060207005] [2021-11-03 03:54:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:17,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:17,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:17,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:17,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:54:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:21,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:54:21,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:21,511 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 03:54:21,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:21,685 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 03:54:21,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:21,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060207005] [2021-11-03 03:54:21,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060207005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:21,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:54:21,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:54:21,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120311229] [2021-11-03 03:54:21,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:54:21,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:21,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:54:21,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:54:21,711 INFO L87 Difference]: Start difference. First operand has 281 states, 267 states have (on average 1.4644194756554307) internal successors, (391), 280 states have internal predecessors, (391), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 03:54:21,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:21,770 INFO L93 Difference]: Finished difference Result 558 states and 777 transitions. [2021-11-03 03:54:21,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:54:21,771 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-11-03 03:54:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:21,794 INFO L225 Difference]: With dead ends: 558 [2021-11-03 03:54:21,794 INFO L226 Difference]: Without dead ends: 274 [2021-11-03 03:54:21,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 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 03:54:21,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-03 03:54:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-03 03:54:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 261 states have (on average 1.3103448275862069) internal successors, (342), 273 states have internal predecessors, (342), 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 03:54:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 342 transitions. [2021-11-03 03:54:21,880 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 342 transitions. Word has length 42 [2021-11-03 03:54:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:21,880 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 342 transitions. [2021-11-03 03:54:21,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 03:54:21,881 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 342 transitions. [2021-11-03 03:54:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 03:54:21,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:21,883 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] [2021-11-03 03:54:21,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 03:54:22,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:54:22,084 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:54:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash 726142253, now seen corresponding path program 1 times [2021-11-03 03:54:22,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:22,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652308052] [2021-11-03 03:54:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:22,092 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:22,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:22,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:22,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:54:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:26,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:54:26,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:26,509 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 03:54:26,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:26,762 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 03:54:26,762 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:26,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652308052] [2021-11-03 03:54:26,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652308052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:26,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:54:26,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:54:26,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180400234] [2021-11-03 03:54:26,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:54:26,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:26,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:54:26,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:54:26,768 INFO L87 Difference]: Start difference. First operand 274 states and 342 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 03:54:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:26,864 INFO L93 Difference]: Finished difference Result 519 states and 652 transitions. [2021-11-03 03:54:26,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:54:26,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 54 [2021-11-03 03:54:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:26,869 INFO L225 Difference]: With dead ends: 519 [2021-11-03 03:54:26,870 INFO L226 Difference]: Without dead ends: 274 [2021-11-03 03:54:26,871 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:54:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-03 03:54:26,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-03 03:54:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 261 states have (on average 1.3026819923371646) internal successors, (340), 273 states have internal predecessors, (340), 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 03:54:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 340 transitions. [2021-11-03 03:54:26,909 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 340 transitions. Word has length 54 [2021-11-03 03:54:26,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:26,909 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 340 transitions. [2021-11-03 03:54:26,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 03:54:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 340 transitions. [2021-11-03 03:54:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 03:54:26,914 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:26,915 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] [2021-11-03 03:54:26,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:27,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:54:27,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:54:27,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:27,132 INFO L85 PathProgramCache]: Analyzing trace with hash -657350258, now seen corresponding path program 1 times [2021-11-03 03:54:27,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:27,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545455213] [2021-11-03 03:54:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:27,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:27,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:27,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:27,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:54:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:31,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:54:31,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:31,748 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 03:54:31,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:31,999 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 03:54:31,999 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:31,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545455213] [2021-11-03 03:54:32,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545455213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:32,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:54:32,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 03:54:32,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255576389] [2021-11-03 03:54:32,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:54:32,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:32,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:54:32,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:54:32,002 INFO L87 Difference]: Start difference. First operand 274 states and 340 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 03:54:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:32,204 INFO L93 Difference]: Finished difference Result 525 states and 659 transitions. [2021-11-03 03:54:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:54:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 56 [2021-11-03 03:54:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:32,208 INFO L225 Difference]: With dead ends: 525 [2021-11-03 03:54:32,208 INFO L226 Difference]: Without dead ends: 280 [2021-11-03 03:54:32,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:54:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-03 03:54:32,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-11-03 03:54:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 279 states have internal predecessors, (346), 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 03:54:32,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 346 transitions. [2021-11-03 03:54:32,222 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 346 transitions. Word has length 56 [2021-11-03 03:54:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:32,222 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 346 transitions. [2021-11-03 03:54:32,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 03:54:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 346 transitions. [2021-11-03 03:54:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 03:54:32,224 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:32,225 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:32,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:32,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:54:32,426 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:54:32,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1156755910, now seen corresponding path program 1 times [2021-11-03 03:54:32,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:32,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74433871] [2021-11-03 03:54:32,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:32,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:32,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:32,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:32,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:54:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:36,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:54:36,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:54:37,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:54:37,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:37,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74433871] [2021-11-03 03:54:37,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74433871] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:54:37,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [352632821] [2021-11-03 03:54:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:37,660 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:37,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:54:37,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:54:37,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-03 03:54:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:39,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:54:39,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 03:54:39,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 03:54:39,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [352632821] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:39,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 03:54:39,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-03 03:54:39,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473052408] [2021-11-03 03:54:39,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:54:39,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:39,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:54:39,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:54:39,922 INFO L87 Difference]: Start difference. First operand 280 states and 346 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 03:54:40,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:40,970 INFO L93 Difference]: Finished difference Result 698 states and 874 transitions. [2021-11-03 03:54:40,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:54:40,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 64 [2021-11-03 03:54:40,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:40,980 INFO L225 Difference]: With dead ends: 698 [2021-11-03 03:54:40,980 INFO L226 Difference]: Without dead ends: 525 [2021-11-03 03:54:40,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-11-03 03:54:40,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-11-03 03:54:40,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 283. [2021-11-03 03:54:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 270 states have (on average 1.2925925925925925) internal successors, (349), 282 states have internal predecessors, (349), 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 03:54:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 349 transitions. [2021-11-03 03:54:40,996 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 349 transitions. Word has length 64 [2021-11-03 03:54:40,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:40,996 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 349 transitions. [2021-11-03 03:54:40,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 03:54:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 349 transitions. [2021-11-03 03:54:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 03:54:40,998 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:40,999 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:41,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 03:54:41,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:41,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:41,420 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:54:41,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:41,420 INFO L85 PathProgramCache]: Analyzing trace with hash 796022652, now seen corresponding path program 1 times [2021-11-03 03:54:41,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:41,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362855152] [2021-11-03 03:54:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:41,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:41,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:41,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:41,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:54:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:45,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:54:45,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:54:46,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:54:46,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:46,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362855152] [2021-11-03 03:54:46,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362855152] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:54:46,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [181062821] [2021-11-03 03:54:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:46,706 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:46,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:54:46,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:54:46,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-03 03:54:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:51,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:54:51,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:54:51,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:54:51,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [181062821] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:54:51,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975298162] [2021-11-03 03:54:51,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:51,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:54:51,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:51,711 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:54:51,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 03:54:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:53,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 03:54:53,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 03:54:54,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 03:54:54,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975298162] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:54,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-03 03:54:54,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 4] imperfect sequences [6, 6, 6, 6] total 19 [2021-11-03 03:54:54,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535745634] [2021-11-03 03:54:54,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:54:54,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:54,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:54:54,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-11-03 03:54:54,335 INFO L87 Difference]: Start difference. First operand 283 states and 349 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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 03:54:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:59,501 INFO L93 Difference]: Finished difference Result 557 states and 691 transitions. [2021-11-03 03:54:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 03:54:59,502 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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 64 [2021-11-03 03:54:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:59,506 INFO L225 Difference]: With dead ends: 557 [2021-11-03 03:54:59,506 INFO L226 Difference]: Without dead ends: 555 [2021-11-03 03:54:59,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=269, Invalid=1137, Unknown=0, NotChecked=0, Total=1406 [2021-11-03 03:54:59,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-11-03 03:54:59,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 285. [2021-11-03 03:54:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 272 states have (on average 1.2904411764705883) internal successors, (351), 284 states have internal predecessors, (351), 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 03:54:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 351 transitions. [2021-11-03 03:54:59,526 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 351 transitions. Word has length 64 [2021-11-03 03:54:59,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:59,527 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 351 transitions. [2021-11-03 03:54:59,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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 03:54:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 351 transitions. [2021-11-03 03:54:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 03:54:59,529 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:59,529 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:59,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-03 03:54:59,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:59,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 03:55:00,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:00,144 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:55:00,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:00,144 INFO L85 PathProgramCache]: Analyzing trace with hash 796082234, now seen corresponding path program 1 times [2021-11-03 03:55:00,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:00,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846680363] [2021-11-03 03:55:00,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:00,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:00,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:00,150 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:00,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:55:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:04,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:55:04,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:55:04,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:05,275 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:55:05,275 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:05,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846680363] [2021-11-03 03:55:05,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846680363] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:55:05,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1205513602] [2021-11-03 03:55:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:05,276 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:55:05,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:55:05,288 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:55:05,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-03 03:55:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:09,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:55:09,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:55:10,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:10,370 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:55:10,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1205513602] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:55:10,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543917497] [2021-11-03 03:55:10,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:10,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:55:10,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:55:10,379 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:55:10,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 03:55:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:12,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 03:55:12,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:55:12,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 03:55:13,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543917497] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:55:13,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:55:13,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 7] total 13 [2021-11-03 03:55:13,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099627779] [2021-11-03 03:55:13,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 03:55:13,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:13,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 03:55:13,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:55:13,094 INFO L87 Difference]: Start difference. First operand 285 states and 351 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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 03:55:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:13,783 INFO L93 Difference]: Finished difference Result 554 states and 692 transitions. [2021-11-03 03:55:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:55:13,784 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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 64 [2021-11-03 03:55:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:13,786 INFO L225 Difference]: With dead ends: 554 [2021-11-03 03:55:13,786 INFO L226 Difference]: Without dead ends: 301 [2021-11-03 03:55:13,787 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2021-11-03 03:55:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-11-03 03:55:13,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2021-11-03 03:55:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 288 states have (on average 1.2743055555555556) internal successors, (367), 300 states have internal predecessors, (367), 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 03:55:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 367 transitions. [2021-11-03 03:55:13,807 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 367 transitions. Word has length 64 [2021-11-03 03:55:13,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:13,808 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 367 transitions. [2021-11-03 03:55:13,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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 03:55:13,808 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 367 transitions. [2021-11-03 03:55:13,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-03 03:55:13,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:13,810 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:55:13,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:14,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:14,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:14,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:55:14,428 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 03:55:14,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:14,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1459005270, now seen corresponding path program 2 times [2021-11-03 03:55:14,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:14,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265635795] [2021-11-03 03:55:14,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:55:14,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:14,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:14,432 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:14,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac5a0b-fb87-4e91-8eb1-758ad021f38c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process