./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/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_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/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_b6080bcf-cfd3-495e-8750-e1511bb7c992/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 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:01:38,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:01:38,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:01:39,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:01:39,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:01:39,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:01:39,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:01:39,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:01:39,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:01:39,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:01:39,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:01:39,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:01:39,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:01:39,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:01:39,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:01:39,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:01:39,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:01:39,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:01:39,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:01:39,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:01:39,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:01:39,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:01:39,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:01:39,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:01:39,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:01:39,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:01:39,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:01:39,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:01:39,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:01:39,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:01:39,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:01:39,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:01:39,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:01:39,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:01:39,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:01:39,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:01:39,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:01:39,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:01:39,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:01:39,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:01:39,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:01:39,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:01:39,096 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:01:39,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:01:39,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:01:39,097 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:01:39,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:01:39,098 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:01:39,098 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:01:39,098 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:01:39,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:01:39,099 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:01:39,099 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:01:39,099 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:01:39,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:01:39,099 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:01:39,099 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:01:39,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:01:39,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:01:39,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:01:39,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:01:39,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:01:39,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:01:39,101 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:01:39,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:01:39,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:01:39,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:01:39,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:01:39,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:01:39,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:01:39,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:01:39,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:01:39,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:01:39,103 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:01:39,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:01:39,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:01:39,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:01:39,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:01:39,104 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2021-11-03 05:01:39,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:01:39,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:01:39,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:01:39,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:01:39,355 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:01:39,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-03 05:01:39,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/9993e501c/222663fa843c4ab1a186ea630b724a67/FLAG0b8272c48 [2021-11-03 05:01:40,240 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:01:40,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-03 05:01:40,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/9993e501c/222663fa843c4ab1a186ea630b724a67/FLAG0b8272c48 [2021-11-03 05:01:40,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/9993e501c/222663fa843c4ab1a186ea630b724a67 [2021-11-03 05:01:40,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:01:40,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:01:40,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:40,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:01:40,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:01:40,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:40" (1/1) ... [2021-11-03 05:01:40,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fccbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:40, skipping insertion in model container [2021-11-03 05:01:40,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:40" (1/1) ... [2021-11-03 05:01:40,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:01:40,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:01:41,226 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-03 05:01:41,233 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-03 05:01:41,256 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:01:41,261 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:01:42,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,233 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,242 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:42,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:01:42,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:01:42,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:01:42,602 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:01:42,604 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:01:42,604 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:01:42,605 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:01:42,605 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:01:42,606 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:01:42,607 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:01:42,781 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:01:42,809 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:01:42,813 INFO L168 Benchmark]: Toolchain (without parser) took 2022.49 ms. Allocated memory is still 117.4 MB. Free memory was 75.6 MB in the beginning and 59.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:01:42,814 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:01:42,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2020.14 ms. Allocated memory is still 117.4 MB. Free memory was 75.2 MB in the beginning and 59.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:01:42,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory is still 38.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2020.14 ms. Allocated memory is still 117.4 MB. Free memory was 75.2 MB in the beginning and 59.6 MB in the end (delta: 15.6 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/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_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/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_b6080bcf-cfd3-495e-8750-e1511bb7c992/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 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:01:44,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:01:44,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:01:44,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:01:44,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:01:44,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:01:44,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:01:44,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:01:44,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:01:44,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:01:44,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:01:44,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:01:44,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:01:44,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:01:44,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:01:44,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:01:44,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:01:44,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:01:44,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:01:44,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:01:44,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:01:44,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:01:44,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:01:44,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:01:45,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:01:45,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:01:45,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:01:45,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:01:45,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:01:45,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:01:45,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:01:45,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:01:45,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:01:45,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:01:45,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:01:45,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:01:45,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:01:45,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:01:45,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:01:45,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:01:45,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:01:45,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:01:45,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:01:45,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:01:45,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:01:45,071 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:01:45,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:01:45,071 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:01:45,072 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:01:45,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:01:45,072 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:01:45,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:01:45,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:01:45,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:01:45,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:01:45,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:01:45,075 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:01:45,076 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:01:45,076 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:01:45,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:01:45,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:01:45,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:01:45,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:01:45,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:01:45,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:01:45,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:01:45,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:01:45,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:01:45,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:01:45,078 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:01:45,079 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:01:45,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:01:45,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:01:45,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:01:45,080 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2021-11-03 05:01:45,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:01:45,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:01:45,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:01:45,489 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:01:45,490 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:01:45,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-03 05:01:45,555 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/e0ce6e780/1c3fced98d534bd4b3d8c95a066c6243/FLAG625e0d04a [2021-11-03 05:01:46,414 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:01:46,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-03 05:01:46,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/e0ce6e780/1c3fced98d534bd4b3d8c95a066c6243/FLAG625e0d04a [2021-11-03 05:01:46,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/data/e0ce6e780/1c3fced98d534bd4b3d8c95a066c6243 [2021-11-03 05:01:46,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:01:46,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:01:46,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:46,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:01:46,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:01:46,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:46" (1/1) ... [2021-11-03 05:01:46,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478f4251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:46, skipping insertion in model container [2021-11-03 05:01:46,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:01:46" (1/1) ... [2021-11-03 05:01:46,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:01:47,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:01:47,355 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-03 05:01:47,363 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-03 05:01:47,392 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:01:47,401 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:01:48,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,320 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,321 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:48,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:01:48,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:01:48,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:01:48,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:01:48,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:01:48,804 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:01:48,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:01:48,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:01:48,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:01:48,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:01:49,031 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:01:49,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,180 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,184 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,234 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:49,275 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:01:49,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:01:49,361 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-03 05:01:49,363 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-03 05:01:49,366 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:01:49,367 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:01:49,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:01:49,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:01:49,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:01:49,483 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:01:49,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:01:49,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:01:49,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:01:49,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:01:49,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:01:49,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:01:49,530 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:01:49,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:49,693 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:01:49,717 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-03 05:01:49,718 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_b6080bcf-cfd3-495e-8750-e1511bb7c992/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-03 05:01:49,720 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:01:49,721 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:01:49,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:01:49,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:01:49,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:01:49,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:01:49,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:01:49,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:01:49,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:01:49,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:01:49,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:01:49,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:01:49,817 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:01:49,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,856 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,877 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:01:49,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:01:50,144 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:01:50,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50 WrapperNode [2021-11-03 05:01:50,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:01:50,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:01:50,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:01:50,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:01:50,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:50,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:50,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:01:50,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:01:50,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:01:50,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:01:50,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:50,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:50,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:50,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:51,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:51,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:51,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:51,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:01:51,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:01:51,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:01:51,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:01:51,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (1/1) ... [2021-11-03 05:01:51,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:01:51,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:01:51,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:01:51,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:01:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:01:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:01:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:01:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:01:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:01:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:01:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:01:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:01:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:02:45,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:02:45,460 INFO L299 CfgBuilder]: Removed 2664 assume(true) statements. [2021-11-03 05:02:45,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:02:45 BoogieIcfgContainer [2021-11-03 05:02:45,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:02:45,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:02:45,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:02:45,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:02:45,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:01:46" (1/3) ... [2021-11-03 05:02:45,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15624149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:02:45, skipping insertion in model container [2021-11-03 05:02:45,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:01:50" (2/3) ... [2021-11-03 05:02:45,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15624149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:02:45, skipping insertion in model container [2021-11-03 05:02:45,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:02:45" (3/3) ... [2021-11-03 05:02:45,473 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2021-11-03 05:02:45,478 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:02:45,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-03 05:02:45,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:02:45,561 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:02:45,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-03 05:02:45,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 3356 states, 3268 states have (on average 1.4225826193390454) internal successors, (4649), 3355 states have internal predecessors, (4649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:02:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 05:02:45,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:45,638 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:02:45,638 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:02:45,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:45,643 INFO L85 PathProgramCache]: Analyzing trace with hash -429929114, now seen corresponding path program 1 times [2021-11-03 05:02:45,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:45,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770446159] [2021-11-03 05:02:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:45,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:45,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:45,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:45,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:02:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:49,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:02:49,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:49,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:49,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:49,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770446159] [2021-11-03 05:02:49,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770446159] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:02:49,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:02:49,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:02:49,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442595021] [2021-11-03 05:02:49,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:02:49,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:02:49,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:02:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:02:49,953 INFO L87 Difference]: Start difference. First operand has 3356 states, 3268 states have (on average 1.4225826193390454) internal successors, (4649), 3355 states have internal predecessors, (4649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:02:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:02:50,130 INFO L93 Difference]: Finished difference Result 6706 states and 9291 transitions. [2021-11-03 05:02:50,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:02:50,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-03 05:02:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:02:50,171 INFO L225 Difference]: With dead ends: 6706 [2021-11-03 05:02:50,171 INFO L226 Difference]: Without dead ends: 3351 [2021-11-03 05:02:50,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:02:50,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2021-11-03 05:02:50,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3351. [2021-11-03 05:02:50,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3264 states have (on average 1.326593137254902) internal successors, (4330), 3350 states have internal predecessors, (4330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:02:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 4330 transitions. [2021-11-03 05:02:50,357 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 4330 transitions. Word has length 58 [2021-11-03 05:02:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:02:50,362 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 4330 transitions. [2021-11-03 05:02:50,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:02:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 4330 transitions. [2021-11-03 05:02:50,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 05:02:50,372 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:02:50,373 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:02:50,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:02:50,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:02:50,589 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:02:50,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:02:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1291635818, now seen corresponding path program 1 times [2021-11-03 05:02:50,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:02:50,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715460398] [2021-11-03 05:02:50,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:02:50,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:02:50,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:02:50,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:02:50,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:02:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:02:54,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 05:02:54,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:02:55,903 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:02:55,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 155 treesize of output 59 [2021-11-03 05:02:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:56,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:02:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:02:58,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:02:58,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715460398] [2021-11-03 05:02:58,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715460398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:02:58,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:02:58,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-11-03 05:02:58,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260445835] [2021-11-03 05:02:58,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-03 05:02:58,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:02:58,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-03 05:02:58,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:02:58,199 INFO L87 Difference]: Start difference. First operand 3351 states and 4330 transitions. Second operand has 15 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:11,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:06:11,658 INFO L93 Difference]: Finished difference Result 6684 states and 8640 transitions. [2021-11-03 05:06:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:06:11,661 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-03 05:06:11,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:06:11,682 INFO L225 Difference]: With dead ends: 6684 [2021-11-03 05:06:11,682 INFO L226 Difference]: Without dead ends: 3349 [2021-11-03 05:06:11,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-11-03 05:06:11,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2021-11-03 05:06:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3349. [2021-11-03 05:06:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3262 states have (on average 1.3264868179031268) internal successors, (4327), 3348 states have internal predecessors, (4327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:11,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4327 transitions. [2021-11-03 05:06:11,794 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4327 transitions. Word has length 62 [2021-11-03 05:06:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:06:11,795 INFO L470 AbstractCegarLoop]: Abstraction has 3349 states and 4327 transitions. [2021-11-03 05:06:11,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4327 transitions. [2021-11-03 05:06:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 05:06:11,797 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:06:11,798 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:06:11,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:06:12,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:06:12,014 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:06:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:06:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1606974806, now seen corresponding path program 1 times [2021-11-03 05:06:12,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:06:12,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724772958] [2021-11-03 05:06:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:06:12,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:06:12,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:06:12,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:06:12,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:06:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:06:15,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1628 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:06:15,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:16,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:06:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:16,817 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:06:16,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724772958] [2021-11-03 05:06:16,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724772958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:06:16,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:06:16,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:06:16,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202887820] [2021-11-03 05:06:16,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:06:16,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:06:16,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:06:16,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:06:16,820 INFO L87 Difference]: Start difference. First operand 3349 states and 4327 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:19,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:06:19,749 INFO L93 Difference]: Finished difference Result 6620 states and 8552 transitions. [2021-11-03 05:06:19,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:06:19,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2021-11-03 05:06:19,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:06:19,768 INFO L225 Difference]: With dead ends: 6620 [2021-11-03 05:06:19,768 INFO L226 Difference]: Without dead ends: 3349 [2021-11-03 05:06:19,773 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:06:19,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2021-11-03 05:06:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3349. [2021-11-03 05:06:19,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3262 states have (on average 1.3261802575107295) internal successors, (4326), 3348 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4326 transitions. [2021-11-03 05:06:19,854 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4326 transitions. Word has length 65 [2021-11-03 05:06:19,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:06:19,856 INFO L470 AbstractCegarLoop]: Abstraction has 3349 states and 4326 transitions. [2021-11-03 05:06:19,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:19,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4326 transitions. [2021-11-03 05:06:19,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 05:06:19,859 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:06:19,859 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:06:19,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:06:20,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:06:20,075 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:06:20,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:06:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash -473413563, now seen corresponding path program 1 times [2021-11-03 05:06:20,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:06:20,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472580555] [2021-11-03 05:06:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:06:20,089 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:06:20,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:06:20,092 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:06:20,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:06:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:06:24,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:06:24,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:24,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:06:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:25,133 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:06:25,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472580555] [2021-11-03 05:06:25,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472580555] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:06:25,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:06:25,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:06:25,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770486696] [2021-11-03 05:06:25,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:06:25,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:06:25,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:06:25,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:06:25,135 INFO L87 Difference]: Start difference. First operand 3349 states and 4326 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:06:41,020 INFO L93 Difference]: Finished difference Result 6688 states and 8639 transitions. [2021-11-03 05:06:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:06:41,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2021-11-03 05:06:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:06:41,043 INFO L225 Difference]: With dead ends: 6688 [2021-11-03 05:06:41,043 INFO L226 Difference]: Without dead ends: 3385 [2021-11-03 05:06:41,049 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:06:41,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2021-11-03 05:06:41,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3349. [2021-11-03 05:06:41,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3262 states have (on average 1.3258736971183323) internal successors, (4325), 3348 states have internal predecessors, (4325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4325 transitions. [2021-11-03 05:06:41,138 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4325 transitions. Word has length 69 [2021-11-03 05:06:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:06:41,138 INFO L470 AbstractCegarLoop]: Abstraction has 3349 states and 4325 transitions. [2021-11-03 05:06:41,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4325 transitions. [2021-11-03 05:06:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 05:06:41,140 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:06:41,140 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:06:41,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:06:41,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:06:41,363 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:06:41,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:06:41,365 INFO L85 PathProgramCache]: Analyzing trace with hash 865861473, now seen corresponding path program 1 times [2021-11-03 05:06:41,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:06:41,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033359415] [2021-11-03 05:06:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:06:41,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:06:41,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:06:41,381 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:06:41,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:06:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:06:45,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:06:45,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:46,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:06:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:46,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:06:46,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033359415] [2021-11-03 05:06:46,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033359415] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:06:46,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:06:46,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:06:46,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985436400] [2021-11-03 05:06:46,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:06:46,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:06:46,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:06:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:06:46,831 INFO L87 Difference]: Start difference. First operand 3349 states and 4325 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:51,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:06:51,316 INFO L93 Difference]: Finished difference Result 6621 states and 8551 transitions. [2021-11-03 05:06:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:06:51,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2021-11-03 05:06:51,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:06:51,338 INFO L225 Difference]: With dead ends: 6621 [2021-11-03 05:06:51,338 INFO L226 Difference]: Without dead ends: 3349 [2021-11-03 05:06:51,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:06:51,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2021-11-03 05:06:51,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3349. [2021-11-03 05:06:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3262 states have (on average 1.325567136725935) internal successors, (4324), 3348 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:51,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4324 transitions. [2021-11-03 05:06:51,426 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4324 transitions. Word has length 77 [2021-11-03 05:06:51,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:06:51,427 INFO L470 AbstractCegarLoop]: Abstraction has 3349 states and 4324 transitions. [2021-11-03 05:06:51,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:06:51,427 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4324 transitions. [2021-11-03 05:06:51,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-03 05:06:51,428 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:06:51,428 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:06:51,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:06:51,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:06:51,655 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:06:51,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:06:51,657 INFO L85 PathProgramCache]: Analyzing trace with hash 133814674, now seen corresponding path program 1 times [2021-11-03 05:06:51,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:06:51,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867363512] [2021-11-03 05:06:51,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:06:51,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:06:51,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:06:51,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:06:51,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:06:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:06:55,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:06:55,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:56,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:06:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:06:57,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:06:57,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867363512] [2021-11-03 05:06:57,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867363512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:06:57,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:06:57,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-03 05:06:57,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888512670] [2021-11-03 05:06:57,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:06:57,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:06:57,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:06:57,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:06:57,663 INFO L87 Difference]: Start difference. First operand 3349 states and 4324 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:07:52,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:07:52,021 INFO L93 Difference]: Finished difference Result 14058 states and 17894 transitions. [2021-11-03 05:07:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:07:52,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-03 05:07:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:07:52,081 INFO L225 Difference]: With dead ends: 14058 [2021-11-03 05:07:52,082 INFO L226 Difference]: Without dead ends: 10770 [2021-11-03 05:07:52,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-03 05:07:52,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10770 states. [2021-11-03 05:07:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10770 to 3349. [2021-11-03 05:07:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3262 states have (on average 1.3252605763335377) internal successors, (4323), 3348 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:07:52,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4323 transitions. [2021-11-03 05:07:52,219 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4323 transitions. Word has length 89 [2021-11-03 05:07:52,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:07:52,219 INFO L470 AbstractCegarLoop]: Abstraction has 3349 states and 4323 transitions. [2021-11-03 05:07:52,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:07:52,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4323 transitions. [2021-11-03 05:07:52,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 05:07:52,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:07:52,221 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:07:52,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:07:52,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:07:52,445 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:07:52,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:07:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash -86726666, now seen corresponding path program 1 times [2021-11-03 05:07:52,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:07:52,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986580572] [2021-11-03 05:07:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:07:52,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:07:52,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:07:52,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:07:52,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:07:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:07:57,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:07:57,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:07:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:57,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:07:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:07:57,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:07:57,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986580572] [2021-11-03 05:07:57,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986580572] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:07:57,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:07:57,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:07:57,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503714085] [2021-11-03 05:07:57,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:07:57,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:07:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:07:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:07:57,849 INFO L87 Difference]: Start difference. First operand 3349 states and 4323 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:08:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:08:01,210 INFO L93 Difference]: Finished difference Result 9582 states and 12325 transitions. [2021-11-03 05:08:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:08:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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 97 [2021-11-03 05:08:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:08:01,229 INFO L225 Difference]: With dead ends: 9582 [2021-11-03 05:08:01,229 INFO L226 Difference]: Without dead ends: 6309 [2021-11-03 05:08:01,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:08:01,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6309 states. [2021-11-03 05:08:01,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6309 to 3463. [2021-11-03 05:08:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3376 states have (on average 1.3255331753554502) internal successors, (4475), 3462 states have internal predecessors, (4475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:08:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 4475 transitions. [2021-11-03 05:08:01,335 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 4475 transitions. Word has length 97 [2021-11-03 05:08:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:08:01,336 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 4475 transitions. [2021-11-03 05:08:01,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:08:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 4475 transitions. [2021-11-03 05:08:01,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 05:08:01,338 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:08:01,338 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:08:01,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:08:01,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:08:01,554 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-03 05:08:01,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:08:01,555 INFO L85 PathProgramCache]: Analyzing trace with hash 394353592, now seen corresponding path program 1 times [2021-11-03 05:08:01,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:08:01,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097591670] [2021-11-03 05:08:01,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:08:01,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:08:01,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:08:01,569 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:08:01,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6080bcf-cfd3-495e-8750-e1511bb7c992/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:08:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:08:06,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:08:06,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:08:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:08:07,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:08:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:08:08,183 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:08:08,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097591670] [2021-11-03 05:08:08,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097591670] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:08:08,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:08:08,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 05:08:08,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445989409] [2021-11-03 05:08:08,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:08:08,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:08:08,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:08:08,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:08:08,186 INFO L87 Difference]: Start difference. First operand 3463 states and 4475 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 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)