./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:47:44,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:47:44,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:47:44,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:47:44,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:47:44,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:47:44,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:47:44,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:47:44,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:47:44,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:47:44,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:47:44,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:47:44,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:47:44,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:47:44,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:47:44,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:47:44,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:47:44,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:47:44,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:47:44,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:47:44,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:47:44,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:47:44,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:47:44,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:47:44,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:47:44,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:47:44,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:47:44,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:47:44,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:47:44,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:47:44,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:47:44,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:47:44,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:47:44,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:47:44,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:47:44,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:47:44,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:47:44,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:47:44,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:47:44,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:47:44,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:47:44,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:47:44,719 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:47:44,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:47:44,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:47:44,721 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:47:44,721 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:47:44,721 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:47:44,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:47:44,722 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:47:44,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:47:44,728 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:47:44,729 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:47:44,730 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:47:44,730 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:47:44,730 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:47:44,730 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:47:44,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:47:44,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:47:44,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:47:44,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:47:44,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:47:44,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:47:44,733 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:47:44,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:47:44,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:47:44,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:47:44,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:47:44,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:47:44,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:47:44,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:47:44,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:47:44,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:47:44,736 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:47:44,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:47:44,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:47:44,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:47:44,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:47:44,738 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2021-11-03 03:47:44,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:47:44,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:47:44,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:47:44,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:47:45,000 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:47:45,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-03 03:47:45,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/8eab199ff/1e393949f08441498c7e0434643aacec/FLAG9b2931829 [2021-11-03 03:47:45,863 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:47:45,867 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-03 03:47:45,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/8eab199ff/1e393949f08441498c7e0434643aacec/FLAG9b2931829 [2021-11-03 03:47:46,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/8eab199ff/1e393949f08441498c7e0434643aacec [2021-11-03 03:47:46,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:47:46,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:47:46,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:46,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:47:46,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:47:46,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:46" (1/1) ... [2021-11-03 03:47:46,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8f5582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:46, skipping insertion in model container [2021-11-03 03:47:46,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:46" (1/1) ... [2021-11-03 03:47:46,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:47:46,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:47:46,837 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-03 03:47:46,843 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-03 03:47:46,864 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:46,870 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:47,589 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:47:47,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,659 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,675 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:47,676 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:48,080 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:48,081 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:48,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:48,083 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:48,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:48,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:48,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:48,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:48,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:48,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:48,270 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:47:48,276 INFO L168 Benchmark]: Toolchain (without parser) took 1843.60 ms. Allocated memory is still 136.3 MB. Free memory was 98.1 MB in the beginning and 81.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:48,277 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 36.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:47:48,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1841.11 ms. Allocated memory is still 136.3 MB. Free memory was 98.1 MB in the beginning and 81.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-03 03:47:48,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 46.7 MB in the beginning and 46.7 MB in the end (delta: 36.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1841.11 ms. Allocated memory is still 136.3 MB. Free memory was 98.1 MB in the beginning and 81.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:47:50,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:47:50,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:47:50,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:47:50,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:47:50,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:47:50,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:47:50,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:47:50,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:47:50,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:47:50,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:47:50,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:47:50,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:47:50,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:47:50,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:47:50,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:47:50,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:47:50,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:47:50,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:47:50,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:47:50,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:47:50,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:47:50,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:47:50,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:47:50,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:47:50,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:47:50,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:47:50,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:47:50,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:47:50,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:47:50,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:47:50,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:47:50,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:47:50,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:47:50,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:47:50,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:47:50,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:47:50,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:47:50,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:47:50,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:47:50,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:47:50,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:47:50,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:47:50,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:47:50,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:47:50,553 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:47:50,553 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:47:50,553 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:47:50,554 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:47:50,554 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:47:50,555 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:47:50,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:47:50,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:47:50,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:47:50,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:47:50,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:47:50,557 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:47:50,558 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:47:50,558 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:47:50,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:47:50,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:47:50,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:47:50,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:47:50,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:47:50,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:47:50,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:47:50,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:47:50,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:47:50,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:47:50,562 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:47:50,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:47:50,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:47:50,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:47:50,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:47:50,563 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2021-11-03 03:47:50,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:47:50,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:47:50,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:47:50,917 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:47:50,918 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:47:50,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-03 03:47:50,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/c7705be6a/788fedfea4774521b872ef17cb9399be/FLAGb075b1cdb [2021-11-03 03:47:51,912 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:47:51,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-03 03:47:51,974 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/c7705be6a/788fedfea4774521b872ef17cb9399be/FLAGb075b1cdb [2021-11-03 03:47:52,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/data/c7705be6a/788fedfea4774521b872ef17cb9399be [2021-11-03 03:47:52,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:47:52,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:47:52,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:52,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:47:52,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:47:52,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:52" (1/1) ... [2021-11-03 03:47:52,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f791ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:52, skipping insertion in model container [2021-11-03 03:47:52,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:52" (1/1) ... [2021-11-03 03:47:52,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:47:52,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:47:52,864 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-03 03:47:52,871 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-03 03:47:52,897 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:52,910 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:53,724 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:47:53,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:53,815 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,196 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:54,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:54,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:54,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:54,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:54,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:54,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:54,203 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:54,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:54,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:54,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:54,469 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:47:54,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:47:54,545 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-03 03:47:54,546 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-03 03:47:54,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:54,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:54,578 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:47:54,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,700 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:54,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:54,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:54,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:54,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:54,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:54,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:54,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:54,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:54,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:54,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:54,843 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:47:54,882 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-03 03:47:54,883 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_99c42529-11d5-4a91-80f1-e6c9312fa6ce/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-03 03:47:54,885 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:54,886 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:54,938 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:47:54,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:54,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:54,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:54,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:55,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:55,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:55,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:55,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:55,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:55,003 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:55,003 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:55,064 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:55,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:55,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:55,503 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:47:55,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55 WrapperNode [2021-11-03 03:47:55,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:55,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:55,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:47:55,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:47:55,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:55,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:47:55,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:47:55,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:47:55,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:47:55,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:47:55,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:47:55,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:47:55,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (1/1) ... [2021-11-03 03:47:55,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:47:55,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:47:55,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:47:56,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:47:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:47:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:47:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:47:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:47:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:47:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:47:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:47:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:47:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:47:56,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:47:56,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:47:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:47:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:47:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:47:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:47:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:48:11,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:48:11,425 INFO L299 CfgBuilder]: Removed 215 assume(true) statements. [2021-11-03 03:48:11,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:11 BoogieIcfgContainer [2021-11-03 03:48:11,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:48:11,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:48:11,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:48:11,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:48:11,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:47:52" (1/3) ... [2021-11-03 03:48:11,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6cb3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:11, skipping insertion in model container [2021-11-03 03:48:11,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:55" (2/3) ... [2021-11-03 03:48:11,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6cb3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:11, skipping insertion in model container [2021-11-03 03:48:11,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:11" (3/3) ... [2021-11-03 03:48:11,435 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2021-11-03 03:48:11,440 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:48:11,440 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-03 03:48:11,487 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:48:11,502 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 03:48:11,502 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-03 03:48:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 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 03:48:11,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 03:48:11,538 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:11,539 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] [2021-11-03 03:48:11,541 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 03:48:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:11,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1584459694, now seen corresponding path program 1 times [2021-11-03 03:48:11,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:11,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884529534] [2021-11-03 03:48:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:11,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:11,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:11,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:11,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:48:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:15,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:48:15,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:15,772 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 03:48:15,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:15,940 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 03:48:15,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:15,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884529534] [2021-11-03 03:48:15,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884529534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:15,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:15,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:48:15,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860245927] [2021-11-03 03:48:15,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:48:15,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:48:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:48:15,980 INFO L87 Difference]: Start difference. First operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 03:48:16,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:16,032 INFO L93 Difference]: Finished difference Result 562 states and 781 transitions. [2021-11-03 03:48:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:48:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-03 03:48:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:16,045 INFO L225 Difference]: With dead ends: 562 [2021-11-03 03:48:16,045 INFO L226 Difference]: Without dead ends: 277 [2021-11-03 03:48:16,049 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 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 03:48:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-03 03:48:16,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-03 03:48:16,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 264 states have (on average 1.3068181818181819) internal successors, (345), 276 states have internal predecessors, (345), 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 03:48:16,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 345 transitions. [2021-11-03 03:48:16,095 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 345 transitions. Word has length 44 [2021-11-03 03:48:16,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:16,095 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 345 transitions. [2021-11-03 03:48:16,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 03:48:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 345 transitions. [2021-11-03 03:48:16,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 03:48:16,098 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:16,098 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 03:48:16,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:16,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:16,322 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 03:48:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash -90645083, now seen corresponding path program 1 times [2021-11-03 03:48:16,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:16,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955616357] [2021-11-03 03:48:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:16,326 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:16,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:16,327 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:16,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:48:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:20,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:48:20,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:20,607 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 03:48:20,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:20,851 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 03:48:20,851 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:20,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955616357] [2021-11-03 03:48:20,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955616357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:20,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:20,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:48:20,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885956358] [2021-11-03 03:48:20,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:48:20,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:48:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:48:20,863 INFO L87 Difference]: Start difference. First operand 277 states and 345 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 03:48:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:20,948 INFO L93 Difference]: Finished difference Result 523 states and 656 transitions. [2021-11-03 03:48:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:48:20,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 03:48:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:20,953 INFO L225 Difference]: With dead ends: 523 [2021-11-03 03:48:20,953 INFO L226 Difference]: Without dead ends: 277 [2021-11-03 03:48:20,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 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 03:48:20,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-03 03:48:20,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-03 03:48:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 264 states have (on average 1.2992424242424243) internal successors, (343), 276 states have internal predecessors, (343), 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 03:48:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 343 transitions. [2021-11-03 03:48:20,974 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 343 transitions. Word has length 56 [2021-11-03 03:48:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:20,974 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 343 transitions. [2021-11-03 03:48:20,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 03:48:20,975 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 343 transitions. [2021-11-03 03:48:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 03:48:20,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:20,977 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:48:21,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:21,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:21,178 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 03:48:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:21,178 INFO L85 PathProgramCache]: Analyzing trace with hash 967739910, now seen corresponding path program 1 times [2021-11-03 03:48:21,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:21,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625967458] [2021-11-03 03:48:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:21,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:21,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:21,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:21,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:48:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:25,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:48:25,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:25,360 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 03:48:25,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:25,589 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 03:48:25,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:25,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625967458] [2021-11-03 03:48:25,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625967458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:25,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:25,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 03:48:25,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60590356] [2021-11-03 03:48:25,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:48:25,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:25,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:48:25,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:48:25,591 INFO L87 Difference]: Start difference. First operand 277 states and 343 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 03:48:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:25,750 INFO L93 Difference]: Finished difference Result 529 states and 663 transitions. [2021-11-03 03:48:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:48:25,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 03:48:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:25,754 INFO L225 Difference]: With dead ends: 529 [2021-11-03 03:48:25,754 INFO L226 Difference]: Without dead ends: 283 [2021-11-03 03:48:25,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:48:25,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-03 03:48:25,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2021-11-03 03:48:25,771 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 03:48:25,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 349 transitions. [2021-11-03 03:48:25,773 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 349 transitions. Word has length 58 [2021-11-03 03:48:25,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:25,773 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 349 transitions. [2021-11-03 03:48:25,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 03:48:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 349 transitions. [2021-11-03 03:48:25,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-03 03:48:25,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:25,776 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, 1, 1] [2021-11-03 03:48:25,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:25,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:25,994 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 03:48:25,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:25,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1065092546, now seen corresponding path program 1 times [2021-11-03 03:48:25,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:25,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71848191] [2021-11-03 03:48:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:25,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:25,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:26,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:26,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:48:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:29,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:48:29,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:30,381 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 03:48:30,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:30,934 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 03:48:30,934 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:30,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71848191] [2021-11-03 03:48:30,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71848191] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:48:30,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1696423039] [2021-11-03 03:48:30,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:30,935 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:48:30,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:48:30,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:48:30,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-03 03:48:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:32,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:48:32,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:32,878 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 03:48:32,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:33,017 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 03:48:33,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1696423039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:33,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 03:48:33,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-03 03:48:33,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583173975] [2021-11-03 03:48:33,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:48:33,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:33,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:48:33,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:48:33,021 INFO L87 Difference]: Start difference. First operand 283 states and 349 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 03:48:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:33,861 INFO L93 Difference]: Finished difference Result 702 states and 878 transitions. [2021-11-03 03:48:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:48:33,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 66 [2021-11-03 03:48:33,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:33,877 INFO L225 Difference]: With dead ends: 702 [2021-11-03 03:48:33,877 INFO L226 Difference]: Without dead ends: 529 [2021-11-03 03:48:33,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 250 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 03:48:33,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-11-03 03:48:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 286. [2021-11-03 03:48:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 273 states have (on average 1.2893772893772895) internal successors, (352), 285 states have internal predecessors, (352), 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 03:48:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 352 transitions. [2021-11-03 03:48:33,912 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 352 transitions. Word has length 66 [2021-11-03 03:48:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:33,913 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 352 transitions. [2021-11-03 03:48:33,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 03:48:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 352 transitions. [2021-11-03 03:48:33,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 03:48:33,922 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:33,923 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, 1, 1, 1] [2021-11-03 03:48:33,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:34,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:34,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 03:48:34,347 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 03:48:34,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:34,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1258752437, now seen corresponding path program 1 times [2021-11-03 03:48:34,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:34,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067700865] [2021-11-03 03:48:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:34,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:34,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:34,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:34,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:48:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:38,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:48:38,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:38,864 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 03:48:38,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:39,332 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 03:48:39,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:39,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067700865] [2021-11-03 03:48:39,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067700865] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:48:39,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1365689061] [2021-11-03 03:48:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:39,333 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:48:39,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:48:39,335 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:48:39,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-03 03:48:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:43,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:48:43,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:43,645 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 03:48:43,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:43,919 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 03:48:43,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1365689061] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:48:43,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123417738] [2021-11-03 03:48:43,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:43,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:48:43,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:48:43,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:48:43,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 03:48:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:45,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 03:48:45,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:46,277 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 03:48:46,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:46,448 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 03:48:46,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123417738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:46,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-03 03:48:46,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 4] imperfect sequences [6, 6, 6, 6] total 19 [2021-11-03 03:48:46,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712766272] [2021-11-03 03:48:46,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:48:46,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:46,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:48:46,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-11-03 03:48:46,451 INFO L87 Difference]: Start difference. First operand 286 states and 352 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:50,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:50,820 INFO L93 Difference]: Finished difference Result 561 states and 695 transitions. [2021-11-03 03:48:50,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 03:48:50,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 03:48:50,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:50,825 INFO L225 Difference]: With dead ends: 561 [2021-11-03 03:48:50,825 INFO L226 Difference]: Without dead ends: 559 [2021-11-03 03:48:50,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=269, Invalid=1137, Unknown=0, NotChecked=0, Total=1406 [2021-11-03 03:48:50,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-11-03 03:48:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 288. [2021-11-03 03:48:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 275 states have (on average 1.2872727272727273) internal successors, (354), 287 states have internal predecessors, (354), 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 03:48:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 354 transitions. [2021-11-03 03:48:50,848 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 354 transitions. Word has length 67 [2021-11-03 03:48:50,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:50,849 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 354 transitions. [2021-11-03 03:48:50,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:50,849 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 354 transitions. [2021-11-03 03:48:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 03:48:50,850 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:50,850 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, 1, 1, 1] [2021-11-03 03:48:50,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:51,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:51,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:51,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:48:51,475 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 03:48:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:51,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1258812019, now seen corresponding path program 1 times [2021-11-03 03:48:51,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:51,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812046150] [2021-11-03 03:48:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:51,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:51,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:51,479 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:51,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:48:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:55,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:48:55,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:55,994 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 03:48:55,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:56,440 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 03:48:56,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:56,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812046150] [2021-11-03 03:48:56,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812046150] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:48:56,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [881288936] [2021-11-03 03:48:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:56,441 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:48:56,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:48:56,446 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:48:56,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-03 03:49:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:49:00,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:49:00,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:49:00,812 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 03:49:00,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:01,034 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 03:49:01,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [881288936] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:49:01,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111619115] [2021-11-03 03:49:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:49:01,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:49:01,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:49:01,046 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:49:01,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 03:49:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:49:02,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 03:49:02,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:49:03,058 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 03:49:03,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:03,609 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 03:49:03,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111619115] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:49:03,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 03:49:03,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 7] total 13 [2021-11-03 03:49:03,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717293857] [2021-11-03 03:49:03,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 03:49:03,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:49:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 03:49:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:49:03,612 INFO L87 Difference]: Start difference. First operand 288 states and 354 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:04,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:49:04,213 INFO L93 Difference]: Finished difference Result 558 states and 696 transitions. [2021-11-03 03:49:04,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:49:04,214 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 03:49:04,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:49:04,216 INFO L225 Difference]: With dead ends: 558 [2021-11-03 03:49:04,216 INFO L226 Difference]: Without dead ends: 304 [2021-11-03 03:49:04,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2021-11-03 03:49:04,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-03 03:49:04,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-03 03:49:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 291 states have (on average 1.2714776632302405) internal successors, (370), 303 states have internal predecessors, (370), 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 03:49:04,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 370 transitions. [2021-11-03 03:49:04,237 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 370 transitions. Word has length 67 [2021-11-03 03:49:04,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:49:04,237 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 370 transitions. [2021-11-03 03:49:04,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:49:04,238 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 370 transitions. [2021-11-03 03:49:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-03 03:49:04,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:49:04,239 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, 1, 1, 1] [2021-11-03 03:49:04,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:49:04,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-03 03:49:04,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-03 03:49:04,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:49:04,855 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 03:49:04,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:49:04,855 INFO L85 PathProgramCache]: Analyzing trace with hash 386148355, now seen corresponding path program 2 times [2021-11-03 03:49:04,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:49:04,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416785990] [2021-11-03 03:49:04,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 03:49:04,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:49:04,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:49:04,859 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:49:04,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c42529-11d5-4a91-80f1-e6c9312fa6ce/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process