./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_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_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/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_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/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_2b210bc7-bf25-41bf-9d95-cad949827c0d/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 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:31,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:31,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:31,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:31,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:31,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:31,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:31,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:31,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:31,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:31,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:31,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:31,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:31,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:31,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:31,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:31,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:31,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:31,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:31,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:31,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:31,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:31,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:31,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:31,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:31,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:31,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:31,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:31,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:31,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:31,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:31,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:31,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:31,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:31,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:31,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:31,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:31,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:31,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:31,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:31,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:31,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:54:31,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:31,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:31,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:31,783 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:31,784 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:31,784 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:31,784 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:54:31,784 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:31,785 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:31,785 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:54:31,786 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:54:31,786 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:31,787 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:54:31,787 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:54:31,787 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:54:31,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:31,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:54:31,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:31,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:31,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:31,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:31,790 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:31,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:31,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:31,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:31,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:31,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:31,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:31,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:31,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:31,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:31,794 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:54:31,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:54:31,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:31,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:31,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:31,795 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2021-11-03 03:54:32,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:32,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:32,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:32,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:32,112 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:32,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2021-11-03 03:54:32,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/8d316452c/73dc61ef841b43b69b798643cb7933be/FLAG0e0c1fa6c [2021-11-03 03:54:32,988 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:32,992 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2021-11-03 03:54:33,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/8d316452c/73dc61ef841b43b69b798643cb7933be/FLAG0e0c1fa6c [2021-11-03 03:54:33,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/8d316452c/73dc61ef841b43b69b798643cb7933be [2021-11-03 03:54:33,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:33,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:33,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:33,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:33,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:33,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:33" (1/1) ... [2021-11-03 03:54:33,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4007e886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:33, skipping insertion in model container [2021-11-03 03:54:33,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:33" (1/1) ... [2021-11-03 03:54:33,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:33,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:33,521 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2021-11-03 03:54:33,530 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2021-11-03 03:54:33,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:54:33,559 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:54:34,412 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:54:34,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,515 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,520 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:34,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:54:34,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:54:34,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:54:34,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:54:34,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:54:34,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:54:34,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:54:34,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:54:34,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:54:34,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:54:35,123 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:54:35,140 INFO L168 Benchmark]: Toolchain (without parser) took 2072.34 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 44.7 MB in the beginning and 82.1 MB in the end (delta: -37.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:35,141 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:54:35,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2069.63 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 44.5 MB in the beginning and 82.1 MB in the end (delta: -37.6 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:35,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2069.63 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 44.5 MB in the beginning and 82.1 MB in the end (delta: -37.6 MB). Peak memory consumption was 21.1 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/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_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/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_2b210bc7-bf25-41bf-9d95-cad949827c0d/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 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:37,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:37,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:37,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:37,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:37,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:37,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:37,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:37,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:37,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:37,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:37,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:37,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:37,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:37,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:37,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:37,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:37,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:37,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:37,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:37,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:37,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:37,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:37,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:37,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:37,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:37,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:37,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:37,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:37,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:37,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:37,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:37,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:37,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:37,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:37,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:37,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:37,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:37,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:37,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:37,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:37,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:54:37,811 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:37,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:37,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:37,813 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:37,813 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:37,814 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:37,814 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:37,814 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:37,814 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:37,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:37,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:37,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:37,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:37,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:37,817 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:37,817 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:54:37,817 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:54:37,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:37,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:37,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:37,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:37,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:54:37,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:37,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:37,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:37,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:37,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:37,820 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:54:37,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:37,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:37,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:37,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:37,821 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2021-11-03 03:54:38,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:38,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:38,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:38,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:38,223 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:38,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2021-11-03 03:54:38,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/7ecd9770e/4cc268ea313f494b90dee0ab0763bc2c/FLAG87c7e3ad7 [2021-11-03 03:54:39,213 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:39,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2021-11-03 03:54:39,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/7ecd9770e/4cc268ea313f494b90dee0ab0763bc2c/FLAG87c7e3ad7 [2021-11-03 03:54:39,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/data/7ecd9770e/4cc268ea313f494b90dee0ab0763bc2c [2021-11-03 03:54:39,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:39,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:39,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:39,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:39,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:39,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:39" (1/1) ... [2021-11-03 03:54:39,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23406256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:39, skipping insertion in model container [2021-11-03 03:54:39,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:39" (1/1) ... [2021-11-03 03:54:39,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:39,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:40,169 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2021-11-03 03:54:40,176 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2021-11-03 03:54:40,209 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:54:40,224 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:54:41,215 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:54:41,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,331 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:41,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:54:41,850 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:54:41,853 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:54:41,861 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:54:41,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:54:41,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:54:41,875 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:54:41,876 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:54:41,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:54:41,878 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:54:42,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:42,216 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:54:42,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:42,279 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2021-11-03 03:54:42,280 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2021-11-03 03:54:42,282 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:54:42,299 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:54:42,333 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:54:42,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,362 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,363 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,411 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:54:42,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:54:42,413 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:54:42,414 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:54:42,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:54:42,416 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:54:42,417 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:54:42,417 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:54:42,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:54:42,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:54:42,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,459 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:42,560 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:54:42,591 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2021-11-03 03:54:42,592 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_2b210bc7-bf25-41bf-9d95-cad949827c0d/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2021-11-03 03:54:42,594 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:54:42,599 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:54:42,629 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:54:42,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,659 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:54:42,697 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:54:42,698 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:54:42,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:54:42,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:54:42,700 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:54:42,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:54:42,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:54:42,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:54:42,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:54:42,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,732 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:54:42,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:43,254 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:54:43,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43 WrapperNode [2021-11-03 03:54:43,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:43,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:43,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:54:43,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:54:43,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:43,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:54:43,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:54:43,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:54:43,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:54:43,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:54:43,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:54:43,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:54:43,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (1/1) ... [2021-11-03 03:54:43,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:43,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:43,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:54:43,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:54:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:54:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:54:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:54:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:54:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:54:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:54:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:54:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:54:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:54:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:54:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:54:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:54:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:54:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:54:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:54:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:54:58,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:54:58,595 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-11-03 03:54:58,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:58 BoogieIcfgContainer [2021-11-03 03:54:58,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:54:58,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:54:58,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:54:58,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:54:58,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:54:39" (1/3) ... [2021-11-03 03:54:58,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1648d925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:58, skipping insertion in model container [2021-11-03 03:54:58,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:43" (2/3) ... [2021-11-03 03:54:58,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1648d925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:58, skipping insertion in model container [2021-11-03 03:54:58,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:58" (3/3) ... [2021-11-03 03:54:58,617 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2021-11-03 03:54:58,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:54:58,624 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-03 03:54:58,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:54:58,714 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:54:58,714 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-03 03:54:58,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 120 states have (on average 1.425) internal successors, (171), 128 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 03:54:58,744 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:58,745 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] [2021-11-03 03:54:58,745 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 03:54:58,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:58,752 INFO L85 PathProgramCache]: Analyzing trace with hash -478978032, now seen corresponding path program 1 times [2021-11-03 03:54:58,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:58,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870197814] [2021-11-03 03:54:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:58,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:58,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:58,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:58,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:55:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:02,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:55:02,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:03,109 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 03:55:03,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:03,255 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 03:55:03,256 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:03,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870197814] [2021-11-03 03:55:03,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870197814] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:03,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:03,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:55:03,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447740952] [2021-11-03 03:55:03,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:55:03,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:03,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:55:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:55:03,307 INFO L87 Difference]: Start difference. First operand has 129 states, 120 states have (on average 1.425) internal successors, (171), 128 states have internal predecessors, (171), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:03,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:03,355 INFO L93 Difference]: Finished difference Result 254 states and 337 transitions. [2021-11-03 03:55:03,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:55:03,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2021-11-03 03:55:03,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:03,367 INFO L225 Difference]: With dead ends: 254 [2021-11-03 03:55:03,367 INFO L226 Difference]: Without dead ends: 122 [2021-11-03 03:55:03,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 03:55:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-03 03:55:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-03 03:55:03,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 114 states have (on average 1.280701754385965) internal successors, (146), 121 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2021-11-03 03:55:03,414 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 29 [2021-11-03 03:55:03,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:03,414 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2021-11-03 03:55:03,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:03,415 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2021-11-03 03:55:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 03:55:03,417 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:03,417 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] [2021-11-03 03:55:03,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:03,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:03,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 03:55:03,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:03,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1554920762, now seen corresponding path program 1 times [2021-11-03 03:55:03,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:03,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138531835] [2021-11-03 03:55:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:03,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:03,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:03,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:03,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:55:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:07,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:55:07,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:07,782 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 03:55:07,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:07,931 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 03:55:07,931 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:07,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138531835] [2021-11-03 03:55:07,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138531835] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:07,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:07,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:55:07,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533996088] [2021-11-03 03:55:07,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:55:07,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:07,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:55:07,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:55:07,935 INFO L87 Difference]: Start difference. First operand 122 states and 146 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:08,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:08,019 INFO L93 Difference]: Finished difference Result 231 states and 277 transitions. [2021-11-03 03:55:08,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:55:08,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2021-11-03 03:55:08,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:08,023 INFO L225 Difference]: With dead ends: 231 [2021-11-03 03:55:08,023 INFO L226 Difference]: Without dead ends: 123 [2021-11-03 03:55:08,024 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 03:55:08,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-03 03:55:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-03 03:55:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 122 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 147 transitions. [2021-11-03 03:55:08,040 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 147 transitions. Word has length 29 [2021-11-03 03:55:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:08,041 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 147 transitions. [2021-11-03 03:55:08,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 147 transitions. [2021-11-03 03:55:08,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-03 03:55:08,043 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:08,043 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] [2021-11-03 03:55:08,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 03:55:08,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:08,257 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 03:55:08,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:08,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1420907256, now seen corresponding path program 1 times [2021-11-03 03:55:08,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:08,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482467379] [2021-11-03 03:55:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:08,262 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:08,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:08,263 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:08,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:55:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:12,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 03:55:12,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:12,916 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:55:12,917 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 03:55:13,105 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 03:55:13,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:14,008 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 03:55:14,008 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:14,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482467379] [2021-11-03 03:55:14,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482467379] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:14,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:14,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 03:55:14,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607494597] [2021-11-03 03:55:14,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:55:14,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:14,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:55:14,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:55:14,026 INFO L87 Difference]: Start difference. First operand 123 states and 147 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:56,705 INFO L93 Difference]: Finished difference Result 325 states and 389 transitions. [2021-11-03 03:55:56,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:55:56,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 29 [2021-11-03 03:55:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:56,711 INFO L225 Difference]: With dead ends: 325 [2021-11-03 03:55:56,711 INFO L226 Difference]: Without dead ends: 217 [2021-11-03 03:55:56,713 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-03 03:55:56,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-03 03:55:56,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 119. [2021-11-03 03:55:56,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 118 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2021-11-03 03:55:56,729 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 29 [2021-11-03 03:55:56,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:56,730 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2021-11-03 03:55:56,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2021-11-03 03:55:56,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 03:55:56,731 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:56,732 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] [2021-11-03 03:55:56,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:56,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:56,941 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 03:55:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash 652749790, now seen corresponding path program 1 times [2021-11-03 03:55:56,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:56,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717297432] [2021-11-03 03:55:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:56,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:56,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:56,946 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:56,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:56:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:00,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:56:00,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:00,996 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 03:56:00,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:01,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:01,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717297432] [2021-11-03 03:56:01,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717297432] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:01,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:01,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:56:01,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100840729] [2021-11-03 03:56:01,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:56:01,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:01,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:56:01,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:56:01,198 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 03:56:01,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:01,614 INFO L93 Difference]: Finished difference Result 210 states and 249 transitions. [2021-11-03 03:56:01,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:56:01,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2021-11-03 03:56:01,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:01,616 INFO L225 Difference]: With dead ends: 210 [2021-11-03 03:56:01,617 INFO L226 Difference]: Without dead ends: 119 [2021-11-03 03:56:01,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 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 03:56:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-03 03:56:01,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-11-03 03:56:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 111 states have (on average 1.2612612612612613) internal successors, (140), 118 states have internal predecessors, (140), 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 03:56:01,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 140 transitions. [2021-11-03 03:56:01,634 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 140 transitions. Word has length 32 [2021-11-03 03:56:01,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:01,634 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 140 transitions. [2021-11-03 03:56:01,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 03:56:01,635 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 140 transitions. [2021-11-03 03:56:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 03:56:01,636 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:01,637 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] [2021-11-03 03:56:01,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:01,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:01,845 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 03:56:01,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:01,845 INFO L85 PathProgramCache]: Analyzing trace with hash 328982722, now seen corresponding path program 1 times [2021-11-03 03:56:01,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:01,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55239823] [2021-11-03 03:56:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:01,848 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:01,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:01,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:56:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:06,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:56:06,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:06,379 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 03:56:06,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:06,698 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 03:56:06,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:06,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55239823] [2021-11-03 03:56:06,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55239823] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:06,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:06,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:56:06,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566960957] [2021-11-03 03:56:06,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:56:06,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:56:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:56:06,701 INFO L87 Difference]: Start difference. First operand 119 states and 140 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 03:56:07,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:07,232 INFO L93 Difference]: Finished difference Result 185 states and 214 transitions. [2021-11-03 03:56:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:56:07,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 40 [2021-11-03 03:56:07,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:07,234 INFO L225 Difference]: With dead ends: 185 [2021-11-03 03:56:07,234 INFO L226 Difference]: Without dead ends: 119 [2021-11-03 03:56:07,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:56:07,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-11-03 03:56:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-11-03 03:56:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 111 states have (on average 1.2432432432432432) internal successors, (138), 118 states have internal predecessors, (138), 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 03:56:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2021-11-03 03:56:07,248 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 40 [2021-11-03 03:56:07,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:07,249 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2021-11-03 03:56:07,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 03:56:07,249 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2021-11-03 03:56:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 03:56:07,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:07,252 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:56:07,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:07,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:07,465 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 03:56:07,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1020937204, now seen corresponding path program 1 times [2021-11-03 03:56:07,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:07,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110991511] [2021-11-03 03:56:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:07,468 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:07,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:07,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:07,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:56:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:12,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1737 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:56:12,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:12,413 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 03:56:12,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:12,545 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 03:56:12,546 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:12,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110991511] [2021-11-03 03:56:12,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110991511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:12,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:12,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:56:12,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934631519] [2021-11-03 03:56:12,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:56:12,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:12,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:56:12,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:56:12,548 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 03:56:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:13,016 INFO L93 Difference]: Finished difference Result 231 states and 271 transitions. [2021-11-03 03:56:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:56:13,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-03 03:56:13,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:13,020 INFO L225 Difference]: With dead ends: 231 [2021-11-03 03:56:13,020 INFO L226 Difference]: Without dead ends: 139 [2021-11-03 03:56:13,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 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 03:56:13,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-03 03:56:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 127. [2021-11-03 03:56:13,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 119 states have (on average 1.226890756302521) internal successors, (146), 126 states have internal predecessors, (146), 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 03:56:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2021-11-03 03:56:13,036 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 56 [2021-11-03 03:56:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:13,036 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2021-11-03 03:56:13,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 03:56:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2021-11-03 03:56:13,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 03:56:13,039 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:13,039 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:56:13,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:13,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:13,253 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 03:56:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:13,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1499022730, now seen corresponding path program 1 times [2021-11-03 03:56:13,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:13,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634799579] [2021-11-03 03:56:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:13,256 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:13,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:13,263 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:13,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b210bc7-bf25-41bf-9d95-cad949827c0d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:57:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:42,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 03:57:42,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:42,589 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 03:57:42,948 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 03:57:42,948 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 15 treesize of output 20 [2021-11-03 03:57:43,155 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 03:57:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:57:43,528 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 38 treesize of output 31 [2021-11-03 03:57:43,935 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-03 03:57:43,936 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 37 treesize of output 39 [2021-11-03 03:57:44,487 INFO L354 Elim1Store]: treesize reduction 1506, result has 0.5 percent of original size [2021-11-03 03:57:44,488 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 113 treesize of output 20 [2021-11-03 03:57:44,844 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 03:57:44,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:45,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:57:45,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-11-03 03:57:54,534 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46|)))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46|) 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))))))) is different from false [2021-11-03 03:57:56,682 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46|) 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_length_harness_~#list~0.base|) (bvadd |c_ULTIMATE.start_aws_array_list_length_harness_~#list~0.offset| (_ bv32 64))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46|)))))) is different from false [2021-11-03 03:57:58,852 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (|ULTIMATE.start_ensure_array_list_has_allocated_data_member_#t~ite589.base| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (let ((.cse0 (store |c_#memory_$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_46| (store (store (store (store (store (store (store (store (select .cse0 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46|) 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_length_harness_~#list~0.base|) (bvadd |c_ULTIMATE.start_aws_array_list_length_harness_~#list~0.offset| (_ bv32 64))))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_46|)))))) is different from false [2021-11-03 03:58:01,077 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 4098204090318 treesize of output 4097398783950