./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:20:07,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:20:07,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:20:07,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:20:07,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:20:07,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:20:07,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:20:07,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:20:07,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:20:07,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:20:07,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:20:07,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:20:07,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:20:07,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:20:07,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:20:07,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:20:07,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:20:07,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:20:07,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:20:07,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:20:07,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:20:07,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:20:07,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:20:07,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:20:07,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:20:07,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:20:07,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:20:07,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:20:07,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:20:07,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:20:07,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:20:07,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:20:07,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:20:07,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:20:07,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:20:07,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:20:07,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:20:07,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:20:07,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:20:07,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:20:07,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:20:07,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:20:07,578 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:20:07,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:20:07,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:20:07,581 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:20:07,581 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:20:07,581 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:20:07,581 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:20:07,582 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:20:07,582 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:20:07,582 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:20:07,584 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:20:07,584 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:20:07,584 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:20:07,585 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:20:07,585 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:20:07,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:20:07,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:20:07,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:20:07,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:20:07,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:20:07,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:20:07,587 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:20:07,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:20:07,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:20:07,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:20:07,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:20:07,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:20:07,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:20:07,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:20:07,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:20:07,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:20:07,590 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:20:07,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:20:07,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:20:07,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:20:07,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:20:07,591 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2021-11-03 04:20:07,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:20:07,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:20:07,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:20:07,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:20:07,984 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:20:07,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 04:20:08,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/a7c854610/01a63cd8050642a6abf5388c41c427cf/FLAGc68f94728 [2021-11-03 04:20:09,048 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:20:09,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 04:20:09,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/a7c854610/01a63cd8050642a6abf5388c41c427cf/FLAGc68f94728 [2021-11-03 04:20:09,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/a7c854610/01a63cd8050642a6abf5388c41c427cf [2021-11-03 04:20:09,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:20:09,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:20:09,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:20:09,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:20:09,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:20:09,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:20:09" (1/1) ... [2021-11-03 04:20:09,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456aeefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:09, skipping insertion in model container [2021-11-03 04:20:09,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:20:09" (1/1) ... [2021-11-03 04:20:09,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:20:09,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:20:10,043 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2021-11-03 04:20:10,052 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2021-11-03 04:20:10,080 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:20:10,094 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:20:11,171 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:20:11,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:11,749 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:20:11,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:20:11,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:20:11,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:20:11,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:20:11,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:20:11,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:20:11,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:20:11,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:20:11,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:20:11,919 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:20:11,929 INFO L168 Benchmark]: Toolchain (without parser) took 2430.80 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 67.0 MB in the end (delta: -12.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:20:11,930 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 66.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:20:11,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2423.25 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 54.1 MB in the beginning and 67.0 MB in the end (delta: -12.9 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:20:11,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 66.6 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2423.25 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 54.1 MB in the beginning and 67.0 MB in the end (delta: -12.9 MB). Peak memory consumption was 13.5 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:20:14,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:20:14,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:20:14,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:20:14,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:20:14,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:20:14,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:20:14,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:20:14,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:20:14,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:20:14,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:20:14,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:20:14,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:20:14,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:20:14,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:20:14,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:20:14,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:20:14,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:20:14,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:20:14,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:20:14,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:20:14,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:20:14,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:20:14,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:20:14,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:20:14,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:20:14,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:20:14,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:20:14,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:20:14,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:20:14,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:20:14,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:20:14,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:20:14,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:20:14,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:20:14,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:20:14,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:20:14,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:20:14,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:20:14,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:20:14,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:20:14,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:20:14,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:20:14,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:20:14,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:20:14,630 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:20:14,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:20:14,631 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:20:14,631 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:20:14,631 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:20:14,631 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:20:14,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:20:14,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:20:14,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:20:14,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:20:14,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:20:14,633 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:20:14,633 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:20:14,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:20:14,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:20:14,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:20:14,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:20:14,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:20:14,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:20:14,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:20:14,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:20:14,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:20:14,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:20:14,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:20:14,639 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:20:14,640 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:20:14,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:20:14,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:20:14,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:20:14,641 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2021-11-03 04:20:15,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:20:15,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:20:15,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:20:15,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:20:15,132 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:20:15,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 04:20:15,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/a3112b95a/92568ad99ab241a0838cf7c00ae8ef5e/FLAG7480c4848 [2021-11-03 04:20:16,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:20:16,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 04:20:16,263 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/a3112b95a/92568ad99ab241a0838cf7c00ae8ef5e/FLAG7480c4848 [2021-11-03 04:20:16,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/data/a3112b95a/92568ad99ab241a0838cf7c00ae8ef5e [2021-11-03 04:20:16,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:20:16,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:20:16,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:20:16,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:20:16,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:20:16,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:20:16" (1/1) ... [2021-11-03 04:20:16,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aea6264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:16, skipping insertion in model container [2021-11-03 04:20:16,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:20:16" (1/1) ... [2021-11-03 04:20:16,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:20:16,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:20:17,124 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2021-11-03 04:20:17,132 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2021-11-03 04:20:17,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:20:17,170 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:20:18,136 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:20:18,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,276 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:20:18,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:20:18,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:20:18,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:20:18,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:20:18,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:20:18,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:20:18,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:20:18,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:20:18,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:20:18,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:18,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:20:19,104 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:20:19,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:20:19,164 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2021-11-03 04:20:19,165 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2021-11-03 04:20:19,166 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:20:19,167 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:20:19,206 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:20:19,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,230 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,242 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,294 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:20:19,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:20:19,296 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:20:19,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:20:19,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:20:19,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:20:19,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:20:19,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:20:19,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:20:19,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:20:19,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,362 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:20:19,450 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:20:19,480 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2021-11-03 04:20:19,481 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_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2021-11-03 04:20:19,483 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:20:19,484 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:20:19,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:20:19,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:20:19,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:20:19,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:20:19,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:20:19,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:20:19,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:20:19,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:20:19,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:20:19,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:20:19,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:20:19,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,706 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:20:19,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:20:20,216 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:20:20,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20 WrapperNode [2021-11-03 04:20:20,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:20:20,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:20:20,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:20:20,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:20:20,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:20:20,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:20:20,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:20:20,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:20:20,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:20:20,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:20:20,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:20:20,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:20:20,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (1/1) ... [2021-11-03 04:20:20,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:20:20,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:20:20,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:20:20,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:20:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:20:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:20:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:20:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:20:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:20:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:20:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:20:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:20:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:20:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:20:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:20:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:20:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:20:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:20:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:20:42,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:20:42,366 INFO L299 CfgBuilder]: Removed 431 assume(true) statements. [2021-11-03 04:20:42,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:20:42 BoogieIcfgContainer [2021-11-03 04:20:42,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:20:42,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:20:42,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:20:42,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:20:42,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:20:16" (1/3) ... [2021-11-03 04:20:42,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398cb3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:20:42, skipping insertion in model container [2021-11-03 04:20:42,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:20:20" (2/3) ... [2021-11-03 04:20:42,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398cb3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:20:42, skipping insertion in model container [2021-11-03 04:20:42,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:20:42" (3/3) ... [2021-11-03 04:20:42,379 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2021-11-03 04:20:42,385 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:20:42,385 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-03 04:20:42,442 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:20:42,449 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 04:20:42,449 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-03 04:20:42,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 486 states, 470 states have (on average 1.4042553191489362) internal successors, (660), 485 states have internal predecessors, (660), 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 04:20:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:20:42,498 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:42,499 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] [2021-11-03 04:20:42,501 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 04:20:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:42,512 INFO L85 PathProgramCache]: Analyzing trace with hash -230682450, now seen corresponding path program 1 times [2021-11-03 04:20:42,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:42,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608672384] [2021-11-03 04:20:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:42,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:42,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:42,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:42,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:20:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:46,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1501 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:20:46,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:46,810 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 04:20:46,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:46,971 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 04:20:46,972 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:46,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608672384] [2021-11-03 04:20:46,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608672384] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:46,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:46,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:20:46,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301988134] [2021-11-03 04:20:46,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:20:46,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:20:46,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:20:47,000 INFO L87 Difference]: Start difference. First operand has 486 states, 470 states have (on average 1.4042553191489362) internal successors, (660), 485 states have internal predecessors, (660), 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 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 04:20:47,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:47,064 INFO L93 Difference]: Finished difference Result 968 states and 1315 transitions. [2021-11-03 04:20:47,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:20:47,065 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2021-11-03 04:20:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:47,090 INFO L225 Difference]: With dead ends: 968 [2021-11-03 04:20:47,090 INFO L226 Difference]: Without dead ends: 481 [2021-11-03 04:20:47,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 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 04:20:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-03 04:20:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2021-11-03 04:20:47,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 466 states have (on average 1.2703862660944205) internal successors, (592), 480 states have internal predecessors, (592), 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 04:20:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 592 transitions. [2021-11-03 04:20:47,169 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 592 transitions. Word has length 27 [2021-11-03 04:20:47,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:47,169 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 592 transitions. [2021-11-03 04:20:47,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 04:20:47,170 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 592 transitions. [2021-11-03 04:20:47,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:20:47,171 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:47,172 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] [2021-11-03 04:20:47,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:20:47,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:20:47,392 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 04:20:47,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:47,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1765736932, now seen corresponding path program 1 times [2021-11-03 04:20:47,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:47,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771174635] [2021-11-03 04:20:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:47,402 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:47,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:47,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:47,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:20:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:51,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1501 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:20:51,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:51,655 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 04:20:51,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:51,775 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 04:20:51,775 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:51,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771174635] [2021-11-03 04:20:51,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771174635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:51,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:51,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:20:51,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375772292] [2021-11-03 04:20:51,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:20:51,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:51,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:20:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:20:51,779 INFO L87 Difference]: Start difference. First operand 481 states and 592 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 04:20:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:20:51,855 INFO L93 Difference]: Finished difference Result 949 states and 1169 transitions. [2021-11-03 04:20:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:20:51,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-11-03 04:20:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:20:51,861 INFO L225 Difference]: With dead ends: 949 [2021-11-03 04:20:51,861 INFO L226 Difference]: Without dead ends: 482 [2021-11-03 04:20:51,864 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 04:20:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-11-03 04:20:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2021-11-03 04:20:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 467 states have (on average 1.2698072805139187) internal successors, (593), 481 states have internal predecessors, (593), 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 04:20:51,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 593 transitions. [2021-11-03 04:20:51,888 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 593 transitions. Word has length 27 [2021-11-03 04:20:51,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:20:51,888 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 593 transitions. [2021-11-03 04:20:51,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 04:20:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 593 transitions. [2021-11-03 04:20:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 04:20:51,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:20:51,890 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] [2021-11-03 04:20:51,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:20:52,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:20:52,112 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 04:20:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:20:52,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1546882214, now seen corresponding path program 1 times [2021-11-03 04:20:52,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:20:52,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908042534] [2021-11-03 04:20:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:20:52,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:20:52,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:20:52,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:20:52,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:20:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:20:56,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 04:20:56,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:20:57,438 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:20:57,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 04:20:57,707 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 04:20:57,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:20:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:20:58,685 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:20:58,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908042534] [2021-11-03 04:20:58,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908042534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:20:58,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:20:58,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 04:20:58,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956384280] [2021-11-03 04:20:58,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:20:58,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:20:58,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:20:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:20:58,689 INFO L87 Difference]: Start difference. First operand 482 states and 593 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 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 04:22:41,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:41,252 INFO L93 Difference]: Finished difference Result 1368 states and 1683 transitions. [2021-11-03 04:22:41,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:22:41,257 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 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 27 [2021-11-03 04:22:41,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:41,264 INFO L225 Difference]: With dead ends: 1368 [2021-11-03 04:22:41,264 INFO L226 Difference]: Without dead ends: 901 [2021-11-03 04:22:41,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-11-03 04:22:41,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-11-03 04:22:41,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 478. [2021-11-03 04:22:41,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 463 states have (on average 1.2699784017278617) internal successors, (588), 477 states have internal predecessors, (588), 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 04:22:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 588 transitions. [2021-11-03 04:22:41,298 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 588 transitions. Word has length 27 [2021-11-03 04:22:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:41,298 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 588 transitions. [2021-11-03 04:22:41,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 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 04:22:41,299 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 588 transitions. [2021-11-03 04:22:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 04:22:41,301 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:41,301 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] [2021-11-03 04:22:41,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:22:41,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:41,512 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 04:22:41,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:41,513 INFO L85 PathProgramCache]: Analyzing trace with hash 413845756, now seen corresponding path program 1 times [2021-11-03 04:22:41,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:41,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561241590] [2021-11-03 04:22:41,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:41,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:41,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:41,523 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:41,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:22:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:45,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:22:45,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:45,746 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 04:22:45,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:45,923 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 04:22:45,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:45,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561241590] [2021-11-03 04:22:45,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561241590] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:45,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:45,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:22:45,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131043046] [2021-11-03 04:22:45,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:22:45,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:45,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:22:45,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:22:45,926 INFO L87 Difference]: Start difference. First operand 478 states and 588 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 04:22:48,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:48,271 INFO L93 Difference]: Finished difference Result 928 states and 1141 transitions. [2021-11-03 04:22:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:22:48,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-11-03 04:22:48,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:48,276 INFO L225 Difference]: With dead ends: 928 [2021-11-03 04:22:48,277 INFO L226 Difference]: Without dead ends: 478 [2021-11-03 04:22:48,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 04:22:48,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-03 04:22:48,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2021-11-03 04:22:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 463 states have (on average 1.2656587473002159) internal successors, (586), 477 states have internal predecessors, (586), 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 04:22:48,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 586 transitions. [2021-11-03 04:22:48,298 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 586 transitions. Word has length 30 [2021-11-03 04:22:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:48,299 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 586 transitions. [2021-11-03 04:22:48,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 04:22:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 586 transitions. [2021-11-03 04:22:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 04:22:48,301 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:48,301 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] [2021-11-03 04:22:48,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:22:48,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:48,520 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 04:22:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:48,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1070491360, now seen corresponding path program 1 times [2021-11-03 04:22:48,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:48,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201889903] [2021-11-03 04:22:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:48,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:48,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:48,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:48,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:22:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:52,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:22:52,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:53,060 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 04:22:53,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:53,312 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 04:22:53,313 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:53,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201889903] [2021-11-03 04:22:53,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201889903] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:53,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:53,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:22:53,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438799515] [2021-11-03 04:22:53,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:22:53,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:53,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:22:53,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:22:53,317 INFO L87 Difference]: Start difference. First operand 478 states and 586 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:55,728 INFO L93 Difference]: Finished difference Result 942 states and 1149 transitions. [2021-11-03 04:22:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:22:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-03 04:22:55,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:55,735 INFO L225 Difference]: With dead ends: 942 [2021-11-03 04:22:55,735 INFO L226 Difference]: Without dead ends: 512 [2021-11-03 04:22:55,736 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:22:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-11-03 04:22:55,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 478. [2021-11-03 04:22:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 463 states have (on average 1.2570194384449245) internal successors, (582), 477 states have internal predecessors, (582), 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 04:22:55,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 582 transitions. [2021-11-03 04:22:55,759 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 582 transitions. Word has length 38 [2021-11-03 04:22:55,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:55,759 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 582 transitions. [2021-11-03 04:22:55,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 582 transitions. [2021-11-03 04:22:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:22:55,769 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:55,769 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:55,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 04:22:55,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:55,988 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 04:22:55,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:55,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1314769366, now seen corresponding path program 1 times [2021-11-03 04:22:55,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:55,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344935495] [2021-11-03 04:22:55,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:55,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:55,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:55,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:55,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:23:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:00,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:23:00,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:01,045 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 04:23:01,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:01,178 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 04:23:01,178 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:01,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344935495] [2021-11-03 04:23:01,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344935495] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:01,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:01,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:23:01,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687021662] [2021-11-03 04:23:01,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:23:01,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:01,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:23:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:23:01,180 INFO L87 Difference]: Start difference. First operand 478 states and 582 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:23:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:03,591 INFO L93 Difference]: Finished difference Result 1024 states and 1264 transitions. [2021-11-03 04:23:03,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:23:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 04:23:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:03,597 INFO L225 Difference]: With dead ends: 1024 [2021-11-03 04:23:03,597 INFO L226 Difference]: Without dead ends: 573 [2021-11-03 04:23:03,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 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 04:23:03,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-11-03 04:23:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 516. [2021-11-03 04:23:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 501 states have (on average 1.2375249500998005) internal successors, (620), 515 states have internal predecessors, (620), 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 04:23:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 620 transitions. [2021-11-03 04:23:03,621 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 620 transitions. Word has length 54 [2021-11-03 04:23:03,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:03,621 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 620 transitions. [2021-11-03 04:23:03,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 04:23:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 620 transitions. [2021-11-03 04:23:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:23:03,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:03,624 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:23:03,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:23:03,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:03,844 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 04:23:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1205190568, now seen corresponding path program 1 times [2021-11-03 04:23:03,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:03,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662160171] [2021-11-03 04:23:03,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:03,848 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:03,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:03,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:03,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb0af03c-7d1b-4acc-8c8d-c3c9917e3b37/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:25:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:52,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 04:25:52,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:52,427 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 04:25:52,782 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 04:25:52,782 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 16 treesize of output 21 [2021-11-03 04:25:52,986 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 04:25:53,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:25:53,360 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 37 treesize of output 30 [2021-11-03 04:25:53,758 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-03 04:25:53,758 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 40 treesize of output 42 [2021-11-03 04:25:54,218 INFO L354 Elim1Store]: treesize reduction 1506, result has 0.5 percent of original size [2021-11-03 04:25:54,219 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 04:25:54,575 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 04:25:54,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:54,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:25:54,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-11-03 04:25:57,009 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_aws_mul_u64_checked_~r.base) 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 04:25:59,209 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|) 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))) (_ bv0 64))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|))))))) is different from false [2021-11-03 04:26:01,391 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|) 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_swap_harness_~#list~0.base|) (bvadd |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0.offset| (_ bv32 64))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|))))))) is different from false [2021-11-03 04:26:03,576 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (|ULTIMATE.start_ensure_array_list_has_allocated_data_member_#t~ite589.base| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.base) c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.offset |ULTIMATE.start_ensure_array_list_has_allocated_data_member_#t~ite589.base|)))) (store .cse0 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (store (store (store (store (store (store (store (store (select .cse0 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|) 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_swap_harness_~#list~0.base|) (bvadd |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0.offset| (_ bv32 64))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|))))))) is different from false [2021-11-03 04:26:05,734 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 257714551263 treesize of output 257664219615