./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:51,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:51,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:51,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:51,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:51,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:51,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:51,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:51,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:51,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:51,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:51,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:51,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:51,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:51,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:51,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:51,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:51,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:51,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:51,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:51,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:51,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:51,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:51,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:51,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:51,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:51,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:51,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:51,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:51,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:51,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:51,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:51,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:51,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:51,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:51,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:51,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:51,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:51,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:51,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:51,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:51,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:46:51,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:51,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:51,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:51,532 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:51,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:51,532 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:51,533 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:46:51,533 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:51,533 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:51,533 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:46:51,534 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:46:51,534 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:51,534 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:46:51,534 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:46:51,535 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:46:51,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:51,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:46:51,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:51,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:51,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:51,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:51,537 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:51,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:51,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:51,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:51,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:51,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:51,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:51,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:51,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:51,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:51,539 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:46:51,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:46:51,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:51,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:51,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:51,540 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2021-11-03 03:46:51,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:51,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:51,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:51,861 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:51,862 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:51,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2021-11-03 03:46:51,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/94167e6f1/7f9d8b68bc5f4a0ebc9b303fc1f8e26f/FLAG4f148acba [2021-11-03 03:46:52,702 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:52,704 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2021-11-03 03:46:52,760 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/94167e6f1/7f9d8b68bc5f4a0ebc9b303fc1f8e26f/FLAG4f148acba [2021-11-03 03:46:53,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/94167e6f1/7f9d8b68bc5f4a0ebc9b303fc1f8e26f [2021-11-03 03:46:53,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:53,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:53,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:53,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:53,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:53,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:53" (1/1) ... [2021-11-03 03:46:53,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc8390d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:53, skipping insertion in model container [2021-11-03 03:46:53,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:53" (1/1) ... [2021-11-03 03:46:53,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:53,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:53,692 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2021-11-03 03:46:53,699 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2021-11-03 03:46:53,722 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:46:53,727 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:46:54,551 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:46:54,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:54,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:46:55,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:46:55,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:46:55,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:46:55,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:46:55,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:46:55,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:46:55,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:46:55,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:46:55,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:46:55,030 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:46:55,170 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:46:55,175 INFO L168 Benchmark]: Toolchain (without parser) took 1901.16 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 67.2 MB in the beginning and 58.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:55,176 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:46:55,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1896.58 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 66.9 MB in the beginning and 58.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:55,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1896.58 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 66.9 MB in the beginning and 58.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 32.2 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:57,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:57,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:57,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:57,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:57,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:57,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:57,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:57,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:57,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:57,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:57,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:57,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:57,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:57,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:57,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:57,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:57,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:57,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:57,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:57,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:57,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:57,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:57,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:57,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:57,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:57,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:57,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:57,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:57,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:57,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:57,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:57,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:57,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:57,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:57,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:57,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:57,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:57,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:57,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:57,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:57,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:46:57,568 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:57,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:57,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:57,570 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:57,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:57,571 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:57,571 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:57,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:57,572 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:57,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:57,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:57,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:57,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:57,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:57,575 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:57,575 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:46:57,576 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:46:57,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:57,576 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:57,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:57,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:57,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:46:57,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:57,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:57,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:57,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:57,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:57,578 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:46:57,578 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:46:57,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:57,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:57,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:57,579 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2021-11-03 03:46:57,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:57,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:57,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:57,988 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:57,989 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:57,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2021-11-03 03:46:58,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/8eca2de42/767eba65fb19406a94a6eacfeb68bc1b/FLAGfbbd1b266 [2021-11-03 03:46:58,916 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:58,917 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2021-11-03 03:46:58,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/8eca2de42/767eba65fb19406a94a6eacfeb68bc1b/FLAGfbbd1b266 [2021-11-03 03:46:59,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/data/8eca2de42/767eba65fb19406a94a6eacfeb68bc1b [2021-11-03 03:46:59,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:59,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:59,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:59,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:59,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:59,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:59" (1/1) ... [2021-11-03 03:46:59,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fb88b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:59, skipping insertion in model container [2021-11-03 03:46:59,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:59" (1/1) ... [2021-11-03 03:46:59,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:59,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:59,923 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2021-11-03 03:46:59,930 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2021-11-03 03:46:59,953 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:46:59,960 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:00,782 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:47:00,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:00,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:01,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:01,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:01,292 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:01,294 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:01,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:01,296 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:01,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:01,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:01,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:01,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:01,583 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:47:01,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:47:01,639 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2021-11-03 03:47:01,640 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2021-11-03 03:47:01,641 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:01,642 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:01,673 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:47:01,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,701 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:01,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:01,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:01,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:01,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:01,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:01,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:01,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:01,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:01,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:01,819 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:01,882 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:47:01,895 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2021-11-03 03:47:01,896 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_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2021-11-03 03:47:01,898 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:47:01,898 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:47:01,939 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:47:01,971 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,971 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,980 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,981 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,982 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:01,984 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:02,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:47:02,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:47:02,024 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:47:02,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:47:02,026 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:47:02,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:47:02,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:47:02,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:47:02,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:47:02,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:47:02,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:02,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:47:02,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:47:02,411 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:47:02,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02 WrapperNode [2021-11-03 03:47:02,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:47:02,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:02,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:47:02,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:47:02,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:47:02,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:47:02,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:47:02,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:47:02,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:47:02,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:47:02,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:47:02,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:47:02,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (1/1) ... [2021-11-03 03:47:02,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:47:02,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:47:02,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:47:02,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:47:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:47:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:47:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:47:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:47:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:47:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:47:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:47:02,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:47:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:47:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:47:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:47:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:47:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:47:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:47:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:47:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:47:19,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:47:19,159 INFO L299 CfgBuilder]: Removed 205 assume(true) statements. [2021-11-03 03:47:19,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:19 BoogieIcfgContainer [2021-11-03 03:47:19,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:47:19,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:47:19,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:47:19,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:47:19,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:59" (1/3) ... [2021-11-03 03:47:19,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa7c516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:19, skipping insertion in model container [2021-11-03 03:47:19,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:02" (2/3) ... [2021-11-03 03:47:19,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa7c516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:19, skipping insertion in model container [2021-11-03 03:47:19,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:19" (3/3) ... [2021-11-03 03:47:19,169 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2021-11-03 03:47:19,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:47:19,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-03 03:47:19,222 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:47:19,227 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:47:19,228 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-03 03:47:19,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 237 states have (on average 1.4345991561181435) internal successors, (340), 253 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 03:47:19,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:19,254 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] [2021-11-03 03:47:19,254 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:47:19,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:19,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1102187548, now seen corresponding path program 1 times [2021-11-03 03:47:19,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:19,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131919041] [2021-11-03 03:47:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:19,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:19,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:19,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:19,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:47:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:23,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:47:23,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:23,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:23,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:23,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131919041] [2021-11-03 03:47:23,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131919041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:23,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:23,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:47:23,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084258475] [2021-11-03 03:47:23,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:47:23,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:23,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:47:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:47:23,844 INFO L87 Difference]: Start difference. First operand has 254 states, 237 states have (on average 1.4345991561181435) internal successors, (340), 253 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:23,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:23,910 INFO L93 Difference]: Finished difference Result 504 states and 675 transitions. [2021-11-03 03:47:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:47:23,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-03 03:47:23,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:23,931 INFO L225 Difference]: With dead ends: 504 [2021-11-03 03:47:23,931 INFO L226 Difference]: Without dead ends: 249 [2021-11-03 03:47:23,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:47:23,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-03 03:47:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-03 03:47:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 233 states have (on average 1.3133047210300428) internal successors, (306), 248 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 306 transitions. [2021-11-03 03:47:24,019 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 306 transitions. Word has length 33 [2021-11-03 03:47:24,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:24,020 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 306 transitions. [2021-11-03 03:47:24,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:24,021 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 306 transitions. [2021-11-03 03:47:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 03:47:24,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:24,023 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] [2021-11-03 03:47:24,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:47:24,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:24,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:47:24,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:24,246 INFO L85 PathProgramCache]: Analyzing trace with hash -977674992, now seen corresponding path program 1 times [2021-11-03 03:47:24,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:24,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958609340] [2021-11-03 03:47:24,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:24,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:24,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:24,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:24,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:47:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:28,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:47:28,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:28,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:28,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:28,318 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:28,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958609340] [2021-11-03 03:47:28,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958609340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:28,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:28,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:47:28,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734631759] [2021-11-03 03:47:28,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:47:28,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:28,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:47:28,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:47:28,323 INFO L87 Difference]: Start difference. First operand 249 states and 306 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:47:28,397 INFO L93 Difference]: Finished difference Result 485 states and 597 transitions. [2021-11-03 03:47:28,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:47:28,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-11-03 03:47:28,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:47:28,400 INFO L225 Difference]: With dead ends: 485 [2021-11-03 03:47:28,401 INFO L226 Difference]: Without dead ends: 250 [2021-11-03 03:47:28,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:47:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-03 03:47:28,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-11-03 03:47:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 234 states have (on average 1.311965811965812) internal successors, (307), 249 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:28,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 307 transitions. [2021-11-03 03:47:28,417 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 307 transitions. Word has length 33 [2021-11-03 03:47:28,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:47:28,417 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 307 transitions. [2021-11-03 03:47:28,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:47:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 307 transitions. [2021-11-03 03:47:28,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 03:47:28,419 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:47:28,420 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] [2021-11-03 03:47:28,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 03:47:28,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:47:28,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:47:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:47:28,634 INFO L85 PathProgramCache]: Analyzing trace with hash -468201902, now seen corresponding path program 1 times [2021-11-03 03:47:28,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:47:28,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693452648] [2021-11-03 03:47:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:47:28,641 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:47:28,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:47:28,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:47:28,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:47:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:47:32,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:47:32,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:33,222 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:47:33,223 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 03:47:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:33,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:47:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:47:34,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:47:34,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693452648] [2021-11-03 03:47:34,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693452648] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:47:34,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:47:34,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 03:47:34,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720944176] [2021-11-03 03:47:34,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:47:34,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:47:34,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:47:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:47:34,443 INFO L87 Difference]: Start difference. First operand 250 states and 307 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:41,626 INFO L93 Difference]: Finished difference Result 773 states and 944 transitions. [2021-11-03 03:48:41,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:48:41,631 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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 33 [2021-11-03 03:48:41,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:41,636 INFO L225 Difference]: With dead ends: 773 [2021-11-03 03:48:41,636 INFO L226 Difference]: Without dead ends: 538 [2021-11-03 03:48:41,638 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-03 03:48:41,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-03 03:48:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 246. [2021-11-03 03:48:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 230 states have (on average 1.3130434782608695) internal successors, (302), 245 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2021-11-03 03:48:41,658 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 33 [2021-11-03 03:48:41,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:41,659 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2021-11-03 03:48:41,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2021-11-03 03:48:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 03:48:41,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:41,661 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] [2021-11-03 03:48:41,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:41,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:41,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:48:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash -427167192, now seen corresponding path program 1 times [2021-11-03 03:48:41,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:41,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288909657] [2021-11-03 03:48:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:41,884 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:41,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:41,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:41,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:48:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:45,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:48:45,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:48:45,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:48:46,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:46,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288909657] [2021-11-03 03:48:46,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288909657] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:46,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:46,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:48:46,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613170307] [2021-11-03 03:48:46,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:48:46,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:46,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:48:46,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:48:46,024 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:46,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:46,991 INFO L93 Difference]: Finished difference Result 464 states and 569 transitions. [2021-11-03 03:48:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:48:46,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2021-11-03 03:48:46,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:46,994 INFO L225 Difference]: With dead ends: 464 [2021-11-03 03:48:46,994 INFO L226 Difference]: Without dead ends: 246 [2021-11-03 03:48:46,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 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 03:48:46,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-03 03:48:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2021-11-03 03:48:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 230 states have (on average 1.3) internal successors, (299), 245 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 299 transitions. [2021-11-03 03:48:47,005 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 299 transitions. Word has length 36 [2021-11-03 03:48:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:47,006 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 299 transitions. [2021-11-03 03:48:47,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 299 transitions. [2021-11-03 03:48:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 03:48:47,007 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:47,008 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] [2021-11-03 03:48:47,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:47,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:47,233 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:48:47,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1328699534, now seen corresponding path program 1 times [2021-11-03 03:48:47,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:47,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653517026] [2021-11-03 03:48:47,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:47,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:47,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:47,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:47,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:48:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:51,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:48:51,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:51,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:48:51,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:51,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:48:51,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:51,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653517026] [2021-11-03 03:48:51,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653517026] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:51,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:51,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:48:51,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249692765] [2021-11-03 03:48:51,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:48:51,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:51,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:48:51,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:48:51,763 INFO L87 Difference]: Start difference. First operand 246 states and 299 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:52,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:52,578 INFO L93 Difference]: Finished difference Result 510 states and 628 transitions. [2021-11-03 03:48:52,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:48:52,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2021-11-03 03:48:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:52,583 INFO L225 Difference]: With dead ends: 510 [2021-11-03 03:48:52,583 INFO L226 Difference]: Without dead ends: 291 [2021-11-03 03:48:52,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 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 03:48:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-03 03:48:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 264. [2021-11-03 03:48:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 248 states have (on average 1.278225806451613) internal successors, (317), 263 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 317 transitions. [2021-11-03 03:48:52,595 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 317 transitions. Word has length 52 [2021-11-03 03:48:52,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:52,596 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 317 transitions. [2021-11-03 03:48:52,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:52,597 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 317 transitions. [2021-11-03 03:48:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 03:48:52,598 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:52,598 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] [2021-11-03 03:48:52,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:52,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:52,813 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:48:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:52,814 INFO L85 PathProgramCache]: Analyzing trace with hash 360244208, now seen corresponding path program 1 times [2021-11-03 03:48:52,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:52,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654952130] [2021-11-03 03:48:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:52,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:52,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:52,821 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:52,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:48:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:48:57,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:48:57,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:48:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:48:57,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:48:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:48:57,838 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:48:57,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654952130] [2021-11-03 03:48:57,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654952130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:48:57,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:48:57,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-03 03:48:57,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034755142] [2021-11-03 03:48:57,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:48:57,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:48:57,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:48:57,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:48:57,841 INFO L87 Difference]: Start difference. First operand 264 states and 317 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:58,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:48:58,987 INFO L93 Difference]: Finished difference Result 453 states and 542 transitions. [2021-11-03 03:48:58,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:48:58,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-11-03 03:48:58,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:48:58,990 INFO L225 Difference]: With dead ends: 453 [2021-11-03 03:48:58,990 INFO L226 Difference]: Without dead ends: 264 [2021-11-03 03:48:58,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:48:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-11-03 03:48:59,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2021-11-03 03:48:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 263 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:59,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 311 transitions. [2021-11-03 03:48:59,004 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 311 transitions. Word has length 52 [2021-11-03 03:48:59,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:48:59,005 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 311 transitions. [2021-11-03 03:48:59,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:48:59,005 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 311 transitions. [2021-11-03 03:48:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 03:48:59,006 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:48:59,007 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:48:59,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:48:59,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:48:59,229 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:48:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:48:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash 63348408, now seen corresponding path program 1 times [2021-11-03 03:48:59,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:48:59,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512503534] [2021-11-03 03:48:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:48:59,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:48:59,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:48:59,236 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:48:59,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:50:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:50:50,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 03:50:50,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:50:50,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 03:50:50,500 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:50:50,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2021-11-03 03:50:50,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-03 03:50:51,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:50:51,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2021-11-03 03:50:51,481 INFO L354 Elim1Store]: treesize reduction 22, result has 40.5 percent of original size [2021-11-03 03:50:51,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 49 [2021-11-03 03:50:51,925 INFO L354 Elim1Store]: treesize reduction 1610, result has 0.6 percent of original size [2021-11-03 03:50:51,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 22 [2021-11-03 03:50:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:50:52,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:50:52,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:50:52,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-11-03 03:50:59,741 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83| (_ BitVec 64)) (v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_3) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_4) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_5) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_6) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_7) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_8)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83|))))) is different from false [2021-11-03 03:51:01,905 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83| (_ BitVec 64)) (v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_3) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_4) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_5) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_6) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_7) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_8)) |c_ULTIMATE.start_aws_array_list_pop_back_harness_~#list~0.base|) (bvadd (_ bv32 64) |c_ULTIMATE.start_aws_array_list_pop_back_harness_~#list~0.offset|)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83|))))) is different from false [2021-11-03 03:51:04,119 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83| (_ BitVec 64)) (v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (|ULTIMATE.start_ensure_array_list_has_allocated_data_member_#t~ite589.base| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.base) c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.offset |ULTIMATE.start_ensure_array_list_has_allocated_data_member_#t~ite589.base|)))) (store .cse0 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83| (store (store (store (store (store (store (store (store (select .cse0 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_3) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_4) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_5) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_6) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_7) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_8))) |c_ULTIMATE.start_aws_array_list_pop_back_harness_~#list~0.base|) (bvadd (_ bv32 64) |c_ULTIMATE.start_aws_array_list_pop_back_harness_~#list~0.offset|)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_83|))))) is different from false [2021-11-03 03:51:04,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61409 treesize of output 61397 [2021-11-03 03:51:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:12,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:51:12,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512503534] [2021-11-03 03:51:12,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512503534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:51:12,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:51:12,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 20 [2021-11-03 03:51:12,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502655812] [2021-11-03 03:51:12,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-03 03:51:12,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:51:12,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-03 03:51:12,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=217, Unknown=4, NotChecked=96, Total=380 [2021-11-03 03:51:12,072 INFO L87 Difference]: Start difference. First operand 264 states and 311 transitions. Second operand has 20 states, 20 states have (on average 4.35) internal successors, (87), 20 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:27,205 WARN L207 SmtUtils]: Spent 6.34 s on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2021-11-03 03:51:50,563 WARN L207 SmtUtils]: Spent 10.48 s on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-11-03 03:51:57,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:51:57,553 INFO L93 Difference]: Finished difference Result 534 states and 633 transitions. [2021-11-03 03:51:57,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 03:51:57,555 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.35) internal successors, (87), 20 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 03:51:57,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:51:57,557 INFO L225 Difference]: With dead ends: 534 [2021-11-03 03:51:57,557 INFO L226 Difference]: Without dead ends: 299 [2021-11-03 03:51:57,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=217, Invalid=490, Unknown=7, NotChecked=156, Total=870 [2021-11-03 03:51:57,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-03 03:51:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 262. [2021-11-03 03:51:57,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 261 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 308 transitions. [2021-11-03 03:51:57,577 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 308 transitions. Word has length 68 [2021-11-03 03:51:57,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:51:57,577 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 308 transitions. [2021-11-03 03:51:57,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.35) internal successors, (87), 20 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 308 transitions. [2021-11-03 03:51:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 03:51:57,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:51:57,579 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:51:57,801 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2021-11-03 03:51:57,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:51:57,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:51:57,839 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-03 03:51:57,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:51:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1452625410, now seen corresponding path program 1 times [2021-11-03 03:51:57,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:51:57,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722717717] [2021-11-03 03:51:57,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:51:57,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:51:57,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:51:57,843 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:51:57,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:53:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:49,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-03 03:53:49,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:49,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 03:53:50,200 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:53:50,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2021-11-03 03:53:50,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-03 03:53:50,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:50,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2021-11-03 03:53:50,777 INFO L354 Elim1Store]: treesize reduction 22, result has 40.5 percent of original size [2021-11-03 03:53:50,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 40 [2021-11-03 03:53:51,203 INFO L354 Elim1Store]: treesize reduction 1610, result has 0.6 percent of original size [2021-11-03 03:53:51,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 22 [2021-11-03 03:53:51,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:51,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 14 [2021-11-03 03:53:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:52,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:52,334 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:52,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-11-03 03:53:54,595 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.base (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base) c_ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_9) (bvadd c_ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_10) (bvadd (_ bv2 64) c_ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_11) (bvadd (_ bv3 64) c_ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_12) (bvadd c_ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_13) (bvadd c_ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_14) (bvadd c_ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_15) (bvadd c_ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_16)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64)))))) is different from false [2021-11-03 03:53:56,694 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.base (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base) (_ bv0 64) v_DerPreprocessor_9) (_ bv1 64) v_DerPreprocessor_10) (_ bv2 64) v_DerPreprocessor_11) (_ bv3 64) v_DerPreprocessor_12) (_ bv4 64) v_DerPreprocessor_13) (_ bv5 64) v_DerPreprocessor_14) (_ bv6 64) v_DerPreprocessor_15) (_ bv7 64) v_DerPreprocessor_16)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64)))))) is different from false [2021-11-03 03:53:58,745 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.base (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base) (_ bv0 64) v_DerPreprocessor_9) (_ bv1 64) v_DerPreprocessor_10) (_ bv2 64) v_DerPreprocessor_11) (_ bv3 64) v_DerPreprocessor_12) (_ bv4 64) v_DerPreprocessor_13) (_ bv5 64) v_DerPreprocessor_14) (_ bv6 64) v_DerPreprocessor_15) (_ bv7 64) v_DerPreprocessor_16)) |c_ULTIMATE.start_aws_array_list_pop_back_harness_~#list~0.base|) (bvadd (_ bv32 64) |c_ULTIMATE.start_aws_array_list_pop_back_harness_~#list~0.offset|))))) is different from false [2021-11-03 03:53:59,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:59,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722717717] [2021-11-03 03:53:59,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_aws_mul_u64_checked_~r.base] [2021-11-03 03:53:59,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [535878617] [2021-11-03 03:53:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:59,140 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 03:53:59,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 03:53:59,142 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 03:53:59,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bf4e8b-e154-4043-9848-9fe7cff9bec0/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process