./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_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_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/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_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/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_979dca68-049f-4ac9-8d8c-99f450eab3fe/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 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:48:58,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:48:58,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:48:58,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:48:58,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:48:58,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:48:58,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:48:58,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:48:58,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:48:58,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:48:58,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:48:58,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:48:58,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:48:58,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:48:58,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:48:58,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:48:58,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:48:58,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:48:58,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:48:58,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:48:58,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:48:58,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:48:58,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:48:58,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:48:58,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:48:58,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:48:58,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:48:58,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:48:58,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:48:58,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:48:58,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:48:58,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:48:58,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:48:58,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:48:58,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:48:58,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:48:58,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:48:58,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:48:58,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:48:58,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:48:58,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:48:58,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:48:58,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:48:58,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:48:58,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:48:58,629 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:48:58,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:48:58,630 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:48:58,631 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:48:58,631 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:48:58,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:48:58,632 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:48:58,633 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:48:58,633 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:48:58,634 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:48:58,634 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:48:58,635 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:48:58,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:48:58,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:48:58,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:48:58,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:48:58,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:48:58,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:48:58,639 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:48:58,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:48:58,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:48:58,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:48:58,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:48:58,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:48:58,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:48:58,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:48:58,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:48:58,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:48:58,642 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:48:58,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:48:58,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:48:58,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:48:58,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:48:58,643 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 [2021-11-03 04:48:59,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:48:59,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:48:59,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:48:59,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:48:59,051 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:48:59,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-03 04:48:59,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/9bfd70098/7e96821a2fe24688b2672022f693d2ef/FLAGa6733924d [2021-11-03 04:49:00,165 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:49:00,166 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-03 04:49:00,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/9bfd70098/7e96821a2fe24688b2672022f693d2ef/FLAGa6733924d [2021-11-03 04:49:00,561 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/9bfd70098/7e96821a2fe24688b2672022f693d2ef [2021-11-03 04:49:00,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:49:00,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:49:00,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:49:00,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:49:00,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:49:00,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:49:00" (1/1) ... [2021-11-03 04:49:00,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c406004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:00, skipping insertion in model container [2021-11-03 04:49:00,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:49:00" (1/1) ... [2021-11-03 04:49:00,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:49:00,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:49:01,246 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-03 04:49:01,255 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-03 04:49:01,288 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:49:01,295 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:49:02,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,593 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,620 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,620 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:02,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:03,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:49:03,391 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:49:03,392 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:49:03,395 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:49:03,397 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:49:03,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:49:03,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:49:03,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:49:03,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:49:03,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:49:03,680 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:49:03,705 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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:49:03,712 INFO L168 Benchmark]: Toolchain (without parser) took 3145.03 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 65.2 MB in the beginning and 85.7 MB in the end (delta: -20.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:49:03,713 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 94.4 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:49:03,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3128.59 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 65.2 MB in the beginning and 85.7 MB in the end (delta: -20.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:49:03,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 94.4 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3128.59 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 65.2 MB in the beginning and 85.7 MB in the end (delta: -20.4 MB). Peak memory consumption was 27.9 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/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_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/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_979dca68-049f-4ac9-8d8c-99f450eab3fe/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 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:49:06,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:49:06,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:49:06,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:49:06,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:49:06,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:49:06,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:49:06,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:49:06,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:49:06,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:49:06,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:49:06,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:49:06,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:49:06,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:49:06,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:49:06,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:49:06,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:49:06,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:49:06,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:49:06,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:49:06,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:49:06,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:49:06,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:49:06,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:49:06,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:49:06,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:49:06,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:49:06,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:49:06,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:49:06,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:49:06,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:49:06,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:49:06,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:49:06,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:49:06,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:49:06,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:49:06,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:49:06,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:49:06,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:49:06,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:49:06,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:49:06,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:49:06,728 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:49:06,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:49:06,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:49:06,731 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:49:06,731 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:49:06,731 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:49:06,732 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:49:06,732 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:49:06,732 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:49:06,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:49:06,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:49:06,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:49:06,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:49:06,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:49:06,737 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:49:06,737 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:49:06,738 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:49:06,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:49:06,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:49:06,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:49:06,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:49:06,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:49:06,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:49:06,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:49:06,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:49:06,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:49:06,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:49:06,742 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:49:06,742 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:49:06,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:49:06,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:49:06,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:49:06,744 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 [2021-11-03 04:49:07,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:49:07,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:49:07,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:49:07,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:49:07,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:49:07,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-03 04:49:07,347 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/07b44b1dd/68b83984552b4ab1b9c9874373067621/FLAG6753a0d6e [2021-11-03 04:49:08,395 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:49:08,396 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-03 04:49:08,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/07b44b1dd/68b83984552b4ab1b9c9874373067621/FLAG6753a0d6e [2021-11-03 04:49:08,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/data/07b44b1dd/68b83984552b4ab1b9c9874373067621 [2021-11-03 04:49:08,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:49:08,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:49:08,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:49:08,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:49:08,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:49:08,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:49:08" (1/1) ... [2021-11-03 04:49:08,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a46a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:08, skipping insertion in model container [2021-11-03 04:49:08,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:49:08" (1/1) ... [2021-11-03 04:49:08,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:49:09,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:49:09,515 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-03 04:49:09,525 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-03 04:49:09,558 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:49:09,567 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:49:10,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:10,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:11,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:49:11,414 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:49:11,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:49:11,416 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:49:11,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:49:11,419 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:49:11,420 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:49:11,421 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:49:11,422 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:49:11,423 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:49:11,703 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:49:12,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,227 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:49:12,360 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:49:12,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:49:12,444 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-03 04:49:12,445 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-03 04:49:12,453 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:49:12,456 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:49:12,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,526 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,526 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,527 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:49:12,584 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:49:12,584 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:49:12,585 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:49:12,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:49:12,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:49:12,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:49:12,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:49:12,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:49:12,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:49:12,640 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:49:12,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,798 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,857 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:12,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:49:13,044 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:49:13,088 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-03 04:49:13,088 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_979dca68-049f-4ac9-8d8c-99f450eab3fe/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-03 04:49:13,090 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:49:13,092 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:49:13,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:49:13,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:49:13,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:49:13,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:49:13,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:49:13,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:49:13,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:49:13,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:49:13,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:49:13,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:49:13,292 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:49:13,437 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,454 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,472 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,472 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:49:13,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:49:14,059 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:49:14,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14 WrapperNode [2021-11-03 04:49:14,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:49:14,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:49:14,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:49:14,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:49:14,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:49:14,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:49:14,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:49:14,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:49:14,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:49:14,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:49:14,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:49:14,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:49:14,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (1/1) ... [2021-11-03 04:49:14,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:49:14,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:49:14,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:49:14,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:49:14,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 04:49:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:49:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:49:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:49:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:49:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 04:49:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:49:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 04:49:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:49:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:49:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:49:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:49:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:49:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:49:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:49:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:49:31,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:49:31,007 INFO L299 CfgBuilder]: Removed 144 assume(true) statements. [2021-11-03 04:49:31,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:49:31 BoogieIcfgContainer [2021-11-03 04:49:31,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:49:31,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:49:31,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:49:31,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:49:31,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:49:08" (1/3) ... [2021-11-03 04:49:31,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377c7070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:49:31, skipping insertion in model container [2021-11-03 04:49:31,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:49:14" (2/3) ... [2021-11-03 04:49:31,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377c7070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:49:31, skipping insertion in model container [2021-11-03 04:49:31,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:49:31" (3/3) ... [2021-11-03 04:49:31,021 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness.i [2021-11-03 04:49:31,028 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:49:31,029 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:49:31,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:49:31,110 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 04:49:31,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:49:31,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 143 states have (on average 1.4055944055944056) internal successors, (201), 149 states have internal predecessors, (201), 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 04:49:31,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 04:49:31,148 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:49:31,149 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:49:31,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:49:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:49:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash 937862733, now seen corresponding path program 1 times [2021-11-03 04:49:31,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:49:31,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604309722] [2021-11-03 04:49:31,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:49:31,187 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:49:31,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:49:31,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:49:31,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:49:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:49:35,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:49:35,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:49:36,066 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 04:49:36,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:49:36,231 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 04:49:36,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:49:36,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604309722] [2021-11-03 04:49:36,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604309722] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:49:36,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:49:36,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:49:36,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934833100] [2021-11-03 04:49:36,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:49:36,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:49:36,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:49:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:49:36,259 INFO L87 Difference]: Start difference. First operand has 150 states, 143 states have (on average 1.4055944055944056) internal successors, (201), 149 states have internal predecessors, (201), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 04:49:36,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:49:36,294 INFO L93 Difference]: Finished difference Result 296 states and 397 transitions. [2021-11-03 04:49:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:49:36,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2021-11-03 04:49:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:49:36,307 INFO L225 Difference]: With dead ends: 296 [2021-11-03 04:49:36,308 INFO L226 Difference]: Without dead ends: 144 [2021-11-03 04:49:36,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 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 04:49:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-03 04:49:36,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-03 04:49:36,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 143 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 171 transitions. [2021-11-03 04:49:36,357 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 171 transitions. Word has length 55 [2021-11-03 04:49:36,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:49:36,358 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 171 transitions. [2021-11-03 04:49:36,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 04:49:36,358 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 171 transitions. [2021-11-03 04:49:36,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 04:49:36,361 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:49:36,361 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:49:36,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:49:36,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:49:36,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:49:36,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:49:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1984184949, now seen corresponding path program 1 times [2021-11-03 04:49:36,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:49:36,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892626606] [2021-11-03 04:49:36,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:49:36,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:49:36,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:49:36,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:49:36,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:49:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:49:41,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:49:41,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:49:41,403 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 04:49:41,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:49:41,667 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 04:49:41,667 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:49:41,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892626606] [2021-11-03 04:49:41,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892626606] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:49:41,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:49:41,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:49:41,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991022700] [2021-11-03 04:49:41,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:49:41,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:49:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:49:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:49:41,671 INFO L87 Difference]: Start difference. First operand 144 states and 171 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 04:49:41,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:49:41,905 INFO L93 Difference]: Finished difference Result 398 states and 474 transitions. [2021-11-03 04:49:41,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:49:41,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 55 [2021-11-03 04:49:41,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:49:41,914 INFO L225 Difference]: With dead ends: 398 [2021-11-03 04:49:41,915 INFO L226 Difference]: Without dead ends: 276 [2021-11-03 04:49:41,918 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:49:41,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-03 04:49:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 147. [2021-11-03 04:49:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 141 states have (on average 1.2340425531914894) internal successors, (174), 146 states have internal predecessors, (174), 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 04:49:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 174 transitions. [2021-11-03 04:49:41,952 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 174 transitions. Word has length 55 [2021-11-03 04:49:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:49:41,953 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 174 transitions. [2021-11-03 04:49:41,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 04:49:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2021-11-03 04:49:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 04:49:41,960 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:49:41,960 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:49:42,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:49:42,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:49:42,170 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:49:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:49:42,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1945028463, now seen corresponding path program 1 times [2021-11-03 04:49:42,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:49:42,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747077327] [2021-11-03 04:49:42,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:49:42,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:49:42,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:49:42,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:49:42,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:49:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:49:46,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:49:46,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:49:46,958 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 04:49:46,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:49:47,226 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 04:49:47,227 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:49:47,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747077327] [2021-11-03 04:49:47,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747077327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:49:47,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:49:47,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:49:47,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465368416] [2021-11-03 04:49:47,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:49:47,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:49:47,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:49:47,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:49:47,230 INFO L87 Difference]: Start difference. First operand 147 states and 174 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:49:47,438 INFO L93 Difference]: Finished difference Result 269 states and 319 transitions. [2021-11-03 04:49:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:49:47,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-03 04:49:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:49:47,441 INFO L225 Difference]: With dead ends: 269 [2021-11-03 04:49:47,441 INFO L226 Difference]: Without dead ends: 147 [2021-11-03 04:49:47,442 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:49:47,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-03 04:49:47,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2021-11-03 04:49:47,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.2246376811594204) internal successors, (169), 143 states have internal predecessors, (169), 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 04:49:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2021-11-03 04:49:47,459 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 57 [2021-11-03 04:49:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:49:47,460 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2021-11-03 04:49:47,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:49:47,460 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2021-11-03 04:49:47,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:49:47,462 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:49:47,462 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:49:47,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:49:47,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:49:47,674 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:49:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:49:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash 737164156, now seen corresponding path program 1 times [2021-11-03 04:49:47,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:49:47,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318539604] [2021-11-03 04:49:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:49:47,678 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:49:47,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:49:47,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:49:47,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:49:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:49:52,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:49:52,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:49:52,803 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 16 treesize of output 12 [2021-11-03 04:49:53,135 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 04:49:53,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:49:53,349 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 30 treesize of output 26 [2021-11-03 04:49:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:49:53,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:49:53,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318539604] [2021-11-03 04:49:53,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318539604] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:49:53,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:49:53,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 04:49:53,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126035168] [2021-11-03 04:49:53,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:49:53,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:49:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:49:53,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:49:53,784 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 04:50:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:00,027 INFO L93 Difference]: Finished difference Result 259 states and 306 transitions. [2021-11-03 04:50:00,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:50:00,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 60 [2021-11-03 04:50:00,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:00,030 INFO L225 Difference]: With dead ends: 259 [2021-11-03 04:50:00,030 INFO L226 Difference]: Without dead ends: 150 [2021-11-03 04:50:00,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:50:00,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-03 04:50:00,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-11-03 04:50:00,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 145 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 171 transitions. [2021-11-03 04:50:00,044 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 171 transitions. Word has length 60 [2021-11-03 04:50:00,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:00,044 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 171 transitions. [2021-11-03 04:50:00,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 04:50:00,045 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 171 transitions. [2021-11-03 04:50:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:50:00,046 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:00,047 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:00,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:50:00,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:50:00,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:50:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash -106841346, now seen corresponding path program 1 times [2021-11-03 04:50:00,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:50:00,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450688095] [2021-11-03 04:50:00,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:00,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:50:00,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:50:00,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:50:00,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:50:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:04,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:50:04,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:50:05,231 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 04:50:05,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:50:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:50:05,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:50:05,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450688095] [2021-11-03 04:50:05,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450688095] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:05,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:05,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:50:05,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519718856] [2021-11-03 04:50:05,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:50:05,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:50:05,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:50:05,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:50:05,592 INFO L87 Difference]: Start difference. First operand 146 states and 171 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 04:50:05,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:05,787 INFO L93 Difference]: Finished difference Result 258 states and 304 transitions. [2021-11-03 04:50:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:50:05,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-03 04:50:05,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:05,793 INFO L225 Difference]: With dead ends: 258 [2021-11-03 04:50:05,793 INFO L226 Difference]: Without dead ends: 144 [2021-11-03 04:50:05,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 04:50:05,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-03 04:50:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-03 04:50:05,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.210144927536232) internal successors, (167), 143 states have internal predecessors, (167), 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 04:50:05,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 167 transitions. [2021-11-03 04:50:05,805 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 167 transitions. Word has length 60 [2021-11-03 04:50:05,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:05,806 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 167 transitions. [2021-11-03 04:50:05,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 04:50:05,806 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 167 transitions. [2021-11-03 04:50:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 04:50:05,808 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:05,808 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:05,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:50:06,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:50:06,014 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:50:06,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:06,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1176868503, now seen corresponding path program 1 times [2021-11-03 04:50:06,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:50:06,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308539817] [2021-11-03 04:50:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:06,020 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:50:06,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:50:06,024 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:50:06,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:50:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:10,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 04:50:10,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:50:11,192 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 16 treesize of output 12 [2021-11-03 04:50:11,307 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 16 treesize of output 8 [2021-11-03 04:50:11,485 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 04:50:11,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:50:11,707 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 30 treesize of output 26 [2021-11-03 04:50:12,172 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 04:50:12,172 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:50:12,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308539817] [2021-11-03 04:50:12,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308539817] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:12,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:12,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:50:12,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695800252] [2021-11-03 04:50:12,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:50:12,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:50:12,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:50:12,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:50:12,175 INFO L87 Difference]: Start difference. First operand 144 states and 167 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:18,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:18,379 INFO L93 Difference]: Finished difference Result 326 states and 381 transitions. [2021-11-03 04:50:18,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:50:18,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-03 04:50:18,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:18,383 INFO L225 Difference]: With dead ends: 326 [2021-11-03 04:50:18,383 INFO L226 Difference]: Without dead ends: 216 [2021-11-03 04:50:18,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:50:18,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-03 04:50:18,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 144. [2021-11-03 04:50:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.2028985507246377) internal successors, (166), 143 states have internal predecessors, (166), 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 04:50:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 166 transitions. [2021-11-03 04:50:18,394 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 166 transitions. Word has length 62 [2021-11-03 04:50:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:18,395 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 166 transitions. [2021-11-03 04:50:18,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 166 transitions. [2021-11-03 04:50:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 04:50:18,397 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:18,397 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:18,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:50:18,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:50:18,618 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:50:18,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2071616654, now seen corresponding path program 1 times [2021-11-03 04:50:18,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:50:18,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667406819] [2021-11-03 04:50:18,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:18,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:50:18,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:50:18,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:50:18,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:50:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:23,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:50:23,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:50:24,012 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 04:50:24,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:50:24,302 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-11-03 04:50:24,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-11-03 04:50:24,331 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-03 04:50:24,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2021-11-03 04:50:24,482 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 04:50:24,482 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:50:24,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667406819] [2021-11-03 04:50:24,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667406819] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:24,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:24,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-03 04:50:24,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996560650] [2021-11-03 04:50:24,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:50:24,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:50:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:50:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:50:24,485 INFO L87 Difference]: Start difference. First operand 144 states and 166 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 04:50:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:31,103 INFO L93 Difference]: Finished difference Result 197 states and 229 transitions. [2021-11-03 04:50:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:50:31,103 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 63 [2021-11-03 04:50:31,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:31,105 INFO L225 Difference]: With dead ends: 197 [2021-11-03 04:50:31,106 INFO L226 Difference]: Without dead ends: 193 [2021-11-03 04:50:31,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:50:31,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-03 04:50:31,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 148. [2021-11-03 04:50:31,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.1958041958041958) internal successors, (171), 147 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:50:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 171 transitions. [2021-11-03 04:50:31,117 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 171 transitions. Word has length 63 [2021-11-03 04:50:31,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:31,117 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 171 transitions. [2021-11-03 04:50:31,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 04:50:31,118 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 171 transitions. [2021-11-03 04:50:31,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:50:31,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:31,119 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:31,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:50:31,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:50:31,330 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:50:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1562853650, now seen corresponding path program 1 times [2021-11-03 04:50:31,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:50:31,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844761512] [2021-11-03 04:50:31,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:31,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:50:31,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:50:31,337 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:50:31,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:50:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:35,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:50:35,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:50:35,898 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 35 treesize of output 27 [2021-11-03 04:50:35,912 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 27 treesize of output 19 [2021-11-03 04:50:36,027 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 04:50:36,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:50:36,254 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 04:50:36,255 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:50:36,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844761512] [2021-11-03 04:50:36,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844761512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:36,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:36,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-03 04:50:36,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044354454] [2021-11-03 04:50:36,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:50:36,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:50:36,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:50:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:50:36,257 INFO L87 Difference]: Start difference. First operand 148 states and 171 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 04:50:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:42,244 INFO L93 Difference]: Finished difference Result 240 states and 278 transitions. [2021-11-03 04:50:42,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:50:42,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 04:50:42,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:42,246 INFO L225 Difference]: With dead ends: 240 [2021-11-03 04:50:42,246 INFO L226 Difference]: Without dead ends: 162 [2021-11-03 04:50:42,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:50:42,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-03 04:50:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2021-11-03 04:50:42,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.193103448275862) internal successors, (173), 149 states have internal predecessors, (173), 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 04:50:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 173 transitions. [2021-11-03 04:50:42,254 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 173 transitions. Word has length 68 [2021-11-03 04:50:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:42,254 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 173 transitions. [2021-11-03 04:50:42,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 04:50:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 173 transitions. [2021-11-03 04:50:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:50:42,255 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:42,256 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:42,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 04:50:42,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:50:42,468 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:50:42,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:42,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1821019088, now seen corresponding path program 1 times [2021-11-03 04:50:42,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:50:42,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446111892] [2021-11-03 04:50:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:42,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:50:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:50:42,482 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:50:42,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:50:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:50:46,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:50:46,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:50:47,137 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 04:50:47,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:50:47,537 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 04:50:47,538 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:50:47,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446111892] [2021-11-03 04:50:47,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446111892] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:50:47,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:50:47,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 04:50:47,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343125806] [2021-11-03 04:50:47,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:50:47,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:50:47,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:50:47,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:50:47,540 INFO L87 Difference]: Start difference. First operand 150 states and 173 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 04:50:47,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:50:47,848 INFO L93 Difference]: Finished difference Result 231 states and 269 transitions. [2021-11-03 04:50:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:50:47,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 04:50:47,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:50:47,850 INFO L225 Difference]: With dead ends: 231 [2021-11-03 04:50:47,850 INFO L226 Difference]: Without dead ends: 148 [2021-11-03 04:50:47,851 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:50:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-03 04:50:47,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-03 04:50:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 147 states have internal predecessors, (168), 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 04:50:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 168 transitions. [2021-11-03 04:50:47,860 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 168 transitions. Word has length 68 [2021-11-03 04:50:47,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:50:47,861 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 168 transitions. [2021-11-03 04:50:47,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 04:50:47,861 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 168 transitions. [2021-11-03 04:50:47,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 04:50:47,862 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:50:47,862 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:50:47,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:50:48,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:50:48,075 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:50:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:50:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash 401697748, now seen corresponding path program 1 times [2021-11-03 04:50:48,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:50:48,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600797623] [2021-11-03 04:50:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:50:48,094 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:50:48,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:50:48,098 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:50:48,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979dca68-049f-4ac9-8d8c-99f450eab3fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:51:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:51:08,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-03 04:51:08,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:51:09,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:09,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 109 [2021-11-03 04:51:11,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,768 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:51:11,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:51:11,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:51:11,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,835 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:51:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,854 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:51:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:51:11,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:51:11,875 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:51:12,254 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-03 04:51:12,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 49 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 533 treesize of output 357 [2021-11-03 04:51:13,676 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:51:13,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 507 treesize of output 411 [2021-11-03 04:51:13,982 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 04:51:13,983 INFO L328 TraceCheckSpWp]: Computing backward predicates...