./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_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_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/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_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/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_d072c0ce-7bea-4462-be57-32d0149e39f7/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 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:56:35,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:56:35,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:56:35,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:56:35,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:56:35,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:56:35,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:56:35,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:56:35,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:56:35,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:56:35,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:56:35,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:56:35,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:56:35,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:56:35,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:56:35,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:56:35,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:56:35,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:56:35,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:56:35,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:56:35,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:56:35,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:56:35,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:56:35,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:56:35,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:56:35,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:56:35,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:56:35,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:56:35,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:56:35,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:56:35,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:56:35,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:56:35,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:56:35,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:56:35,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:56:35,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:56:35,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:56:35,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:56:35,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:56:35,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:56:35,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:56:35,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:56:35,714 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:56:35,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:56:35,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:56:35,718 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:56:35,718 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:56:35,718 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:56:35,718 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:56:35,719 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:56:35,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:56:35,725 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:56:35,727 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:56:35,727 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:56:35,727 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:56:35,727 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:56:35,728 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:56:35,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:56:35,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:56:35,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:56:35,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:56:35,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:56:35,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:56:35,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:56:35,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:56:35,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:56:35,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:56:35,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:56:35,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:56:35,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:35,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:56:35,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:56:35,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:56:35,734 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:56:35,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:56:35,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:56:35,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:56:35,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:56:35,735 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_d072c0ce-7bea-4462-be57-32d0149e39f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 [2021-11-03 03:56:36,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:56:36,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:56:36,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:56:36,070 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:56:36,071 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:56:36,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-03 03:56:36,138 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/05497c261/6f1c695576b2455bb7d4585444ffa9cd/FLAGa3279675f [2021-11-03 03:56:37,020 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:56:37,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-03 03:56:37,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/05497c261/6f1c695576b2455bb7d4585444ffa9cd/FLAGa3279675f [2021-11-03 03:56:37,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/05497c261/6f1c695576b2455bb7d4585444ffa9cd [2021-11-03 03:56:37,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:56:37,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:56:37,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:37,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:56:37,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:56:37,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:37" (1/1) ... [2021-11-03 03:56:37,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bcf251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:37, skipping insertion in model container [2021-11-03 03:56:37,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:37" (1/1) ... [2021-11-03 03:56:37,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:56:37,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:37,975 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_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-03 03:56:37,982 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_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-03 03:56:38,003 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:38,008 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:39,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,041 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:39,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:39,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:39,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:39,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:39,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:39,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:39,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:39,524 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:39,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:39,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:39,799 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:39,822 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:56:39,832 INFO L168 Benchmark]: Toolchain (without parser) took 2330.53 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 77.0 MB in the beginning and 89.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:39,833 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 78.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:56:39,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2327.80 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 76.7 MB in the beginning and 89.9 MB in the end (delta: -13.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:39,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 78.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2327.80 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 76.7 MB in the beginning and 89.9 MB in the end (delta: -13.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/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_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/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_d072c0ce-7bea-4462-be57-32d0149e39f7/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 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:56:42,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:56:42,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:56:42,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:56:42,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:56:42,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:56:42,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:56:42,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:56:42,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:56:42,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:56:42,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:56:42,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:56:42,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:56:42,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:56:42,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:56:42,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:56:42,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:56:42,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:56:42,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:56:42,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:56:42,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:56:42,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:56:42,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:56:42,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:56:42,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:56:42,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:56:42,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:56:42,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:56:42,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:56:42,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:56:42,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:56:42,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:56:42,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:56:42,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:56:42,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:56:42,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:56:42,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:56:42,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:56:42,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:56:42,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:56:42,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:56:42,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:56:42,403 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:56:42,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:56:42,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:56:42,405 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:56:42,405 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:56:42,406 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:56:42,406 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:56:42,406 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:56:42,406 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:56:42,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:56:42,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:56:42,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:56:42,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:56:42,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:56:42,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:56:42,409 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:56:42,409 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:56:42,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:56:42,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:56:42,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:56:42,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:56:42,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:56:42,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:56:42,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:42,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:56:42,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:56:42,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:56:42,412 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:56:42,412 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:56:42,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:56:42,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:56:42,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:56:42,413 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_d072c0ce-7bea-4462-be57-32d0149e39f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9248d62da968900adf628e209d21739bec2ffe4f64c1d45016706037787190a6 [2021-11-03 03:56:42,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:56:42,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:56:42,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:56:42,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:56:42,837 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:56:42,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-03 03:56:42,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/7b5a9de81/9c7e9da3339747918470060db558f6cb/FLAG7f933d22f [2021-11-03 03:56:43,984 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:56:43,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i [2021-11-03 03:56:44,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/7b5a9de81/9c7e9da3339747918470060db558f6cb/FLAG7f933d22f [2021-11-03 03:56:44,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/data/7b5a9de81/9c7e9da3339747918470060db558f6cb [2021-11-03 03:56:44,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:56:44,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:56:44,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:44,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:56:44,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:56:44,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:44" (1/1) ... [2021-11-03 03:56:44,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4713305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:44, skipping insertion in model container [2021-11-03 03:56:44,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:44" (1/1) ... [2021-11-03 03:56:44,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:56:44,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:44,887 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_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-03 03:56:44,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-03 03:56:44,930 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:44,946 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:46,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,269 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:46,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:46,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:46,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:46,844 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:46,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:46,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:46,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:46,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:46,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:46,849 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:47,043 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:47,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:47,377 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:56:47,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:47,447 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_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-03 03:56:47,447 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_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-03 03:56:47,449 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:47,450 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:47,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:47,538 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:47,538 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:47,564 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:47,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:47,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:47,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:47,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:47,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:47,568 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:47,588 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:47,644 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:47,701 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:56:47,715 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_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4496,4509] [2021-11-03 03:56:47,715 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_d072c0ce-7bea-4462-be57-32d0149e39f7/sv-benchmarks/c/aws-c-common/aws_byte_buf_init_copy_harness.i[4556,4569] [2021-11-03 03:56:47,717 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:56:47,718 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:56:47,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,789 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,789 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,820 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:56:47,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:56:47,822 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:56:47,822 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:56:47,824 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:56:47,824 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:56:47,825 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:56:47,825 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:56:47,825 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:56:47,826 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:56:47,845 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:56:47,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:56:47,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:48,399 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:56:48,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48 WrapperNode [2021-11-03 03:56:48,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:48,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:56:48,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:56:48,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:56:48,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:56:48,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:56:48,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:56:48,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:56:48,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:56:48,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:56:48,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:56:48,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:56:48,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (1/1) ... [2021-11-03 03:56:48,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:48,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:56:48,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:56:48,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:56:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:56:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:56:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:56:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:56:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:56:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:56:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:56:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:56:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:56:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:56:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:56:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:56:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:56:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:57:06,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:57:06,401 INFO L299 CfgBuilder]: Removed 135 assume(true) statements. [2021-11-03 03:57:06,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:57:06 BoogieIcfgContainer [2021-11-03 03:57:06,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:57:06,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:57:06,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:57:06,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:57:06,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:56:44" (1/3) ... [2021-11-03 03:57:06,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16833775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:57:06, skipping insertion in model container [2021-11-03 03:57:06,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:48" (2/3) ... [2021-11-03 03:57:06,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16833775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:57:06, skipping insertion in model container [2021-11-03 03:57:06,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:57:06" (3/3) ... [2021-11-03 03:57:06,416 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_init_copy_harness.i [2021-11-03 03:57:06,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:57:06,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-03 03:57:06,495 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:57:06,511 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:57:06,512 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-03 03:57:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 214 states have (on average 1.4672897196261683) internal successors, (314), 225 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 03:57:06,551 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:06,551 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:06,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:57:06,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:06,558 INFO L85 PathProgramCache]: Analyzing trace with hash 177948251, now seen corresponding path program 1 times [2021-11-03 03:57:06,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:06,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741985039] [2021-11-03 03:57:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:06,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:06,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:06,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:06,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:57:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:11,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:57:11,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:11,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:11,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:11,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741985039] [2021-11-03 03:57:11,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741985039] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:11,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:11,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:57:11,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144138394] [2021-11-03 03:57:11,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:57:11,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:11,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:57:11,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:57:11,342 INFO L87 Difference]: Start difference. First operand has 226 states, 214 states have (on average 1.4672897196261683) internal successors, (314), 225 states have internal predecessors, (314), 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 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:11,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:11,399 INFO L93 Difference]: Finished difference Result 448 states and 623 transitions. [2021-11-03 03:57:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:57:11,400 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-03 03:57:11,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:11,416 INFO L225 Difference]: With dead ends: 448 [2021-11-03 03:57:11,419 INFO L226 Difference]: Without dead ends: 219 [2021-11-03 03:57:11,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:57:11,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-03 03:57:11,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-03 03:57:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 208 states have (on average 1.3076923076923077) internal successors, (272), 218 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 272 transitions. [2021-11-03 03:57:11,488 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 272 transitions. Word has length 36 [2021-11-03 03:57:11,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:11,488 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 272 transitions. [2021-11-03 03:57:11,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 272 transitions. [2021-11-03 03:57:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 03:57:11,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:11,491 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:11,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:11,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:11,702 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:57:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:11,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1820328590, now seen corresponding path program 1 times [2021-11-03 03:57:11,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:11,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882511297] [2021-11-03 03:57:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:11,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:11,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:11,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:11,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:57:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:15,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:57:15,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:16,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:16,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:16,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882511297] [2021-11-03 03:57:16,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882511297] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:16,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:16,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:57:16,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886624938] [2021-11-03 03:57:16,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:16,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:16,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:16,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:16,476 INFO L87 Difference]: Start difference. First operand 219 states and 272 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:16,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:16,880 INFO L93 Difference]: Finished difference Result 412 states and 510 transitions. [2021-11-03 03:57:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:16,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-03 03:57:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:16,886 INFO L225 Difference]: With dead ends: 412 [2021-11-03 03:57:16,886 INFO L226 Difference]: Without dead ends: 219 [2021-11-03 03:57:16,890 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:16,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-03 03:57:16,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-03 03:57:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 218 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:16,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 270 transitions. [2021-11-03 03:57:16,907 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 270 transitions. Word has length 40 [2021-11-03 03:57:16,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:16,907 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 270 transitions. [2021-11-03 03:57:16,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 270 transitions. [2021-11-03 03:57:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 03:57:16,909 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:16,910 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] [2021-11-03 03:57:16,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:17,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:17,134 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:57:17,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1693846175, now seen corresponding path program 1 times [2021-11-03 03:57:17,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:17,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571152413] [2021-11-03 03:57:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:17,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:17,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:17,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:17,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:57:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:21,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1802 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:57:21,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:21,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:22,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:22,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571152413] [2021-11-03 03:57:22,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571152413] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:22,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:22,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:57:22,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183077073] [2021-11-03 03:57:22,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:22,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:22,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:22,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:22,078 INFO L87 Difference]: Start difference. First operand 219 states and 270 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:22,656 INFO L93 Difference]: Finished difference Result 473 states and 592 transitions. [2021-11-03 03:57:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:22,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 46 [2021-11-03 03:57:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:22,660 INFO L225 Difference]: With dead ends: 473 [2021-11-03 03:57:22,660 INFO L226 Difference]: Without dead ends: 279 [2021-11-03 03:57:22,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:22,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-03 03:57:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 231. [2021-11-03 03:57:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.2818181818181817) internal successors, (282), 230 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 282 transitions. [2021-11-03 03:57:22,686 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 282 transitions. Word has length 46 [2021-11-03 03:57:22,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:22,686 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 282 transitions. [2021-11-03 03:57:22,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:22,687 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 282 transitions. [2021-11-03 03:57:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 03:57:22,701 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:22,701 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] [2021-11-03 03:57:22,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:22,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:22,926 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:57:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:22,926 INFO L85 PathProgramCache]: Analyzing trace with hash 992246301, now seen corresponding path program 1 times [2021-11-03 03:57:22,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:22,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160539878] [2021-11-03 03:57:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:22,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:22,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:22,931 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:22,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:57:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:27,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 03:57:27,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:27,903 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 18 treesize of output 14 [2021-11-03 03:57:28,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:28,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:28,793 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 40 treesize of output 34 [2021-11-03 03:57:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:29,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:29,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160539878] [2021-11-03 03:57:29,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160539878] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:29,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:29,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 03:57:29,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728979186] [2021-11-03 03:57:29,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 03:57:29,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:29,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 03:57:29,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:57:29,116 INFO L87 Difference]: Start difference. First operand 231 states and 282 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:41,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:41,218 INFO L93 Difference]: Finished difference Result 702 states and 862 transitions. [2021-11-03 03:57:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-03 03:57:41,220 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 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 46 [2021-11-03 03:57:41,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:41,224 INFO L225 Difference]: With dead ends: 702 [2021-11-03 03:57:41,224 INFO L226 Difference]: Without dead ends: 498 [2021-11-03 03:57:41,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2021-11-03 03:57:41,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-11-03 03:57:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 295. [2021-11-03 03:57:41,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 284 states have (on average 1.2992957746478873) internal successors, (369), 294 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:41,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 369 transitions. [2021-11-03 03:57:41,256 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 369 transitions. Word has length 46 [2021-11-03 03:57:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:41,257 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 369 transitions. [2021-11-03 03:57:41,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 369 transitions. [2021-11-03 03:57:41,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:57:41,265 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:41,265 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] [2021-11-03 03:57:41,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 03:57:41,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:41,482 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:57:41,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:41,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1651066279, now seen corresponding path program 1 times [2021-11-03 03:57:41,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:41,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908139098] [2021-11-03 03:57:41,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:41,487 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:41,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:41,488 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:41,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:57:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:46,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:57:46,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:46,739 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 03:57:46,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 03:57:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:46,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:47,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:47,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:47,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908139098] [2021-11-03 03:57:47,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908139098] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:47,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:47,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 03:57:47,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065214974] [2021-11-03 03:57:47,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:57:47,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:47,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:57:47,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:57:47,589 INFO L87 Difference]: Start difference. First operand 295 states and 369 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:03,625 INFO L93 Difference]: Finished difference Result 868 states and 1081 transitions. [2021-11-03 03:58:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:58:03,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 03:58:03,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:03,630 INFO L225 Difference]: With dead ends: 868 [2021-11-03 03:58:03,630 INFO L226 Difference]: Without dead ends: 593 [2021-11-03 03:58:03,631 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 03:58:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-11-03 03:58:03,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 351. [2021-11-03 03:58:03,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 340 states have (on average 1.2970588235294118) internal successors, (441), 350 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 441 transitions. [2021-11-03 03:58:03,649 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 441 transitions. Word has length 50 [2021-11-03 03:58:03,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:03,650 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 441 transitions. [2021-11-03 03:58:03,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 441 transitions. [2021-11-03 03:58:03,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 03:58:03,651 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:03,651 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] [2021-11-03 03:58:03,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:58:03,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:58:03,858 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:58:03,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:03,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1925825893, now seen corresponding path program 1 times [2021-11-03 03:58:03,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:58:03,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154899336] [2021-11-03 03:58:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:03,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:58:03,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:58:03,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:58:03,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:58:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:07,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 03:58:07,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:08,422 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 03:58:08,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 03:58:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:08,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:09,889 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:58:09,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154899336] [2021-11-03 03:58:09,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154899336] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:58:09,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:58:09,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 03:58:09,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055314343] [2021-11-03 03:58:09,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 03:58:09,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:58:09,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 03:58:09,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 03:58:09,892 INFO L87 Difference]: Start difference. First operand 351 states and 441 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:35,961 INFO L93 Difference]: Finished difference Result 1126 states and 1357 transitions. [2021-11-03 03:58:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 03:58:35,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 03:58:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:35,969 INFO L225 Difference]: With dead ends: 1126 [2021-11-03 03:58:35,969 INFO L226 Difference]: Without dead ends: 780 [2021-11-03 03:58:35,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 03:58:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-03 03:58:35,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 360. [2021-11-03 03:58:35,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 349 states have (on average 1.2779369627507164) internal successors, (446), 359 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 446 transitions. [2021-11-03 03:58:35,995 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 446 transitions. Word has length 50 [2021-11-03 03:58:35,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:35,995 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 446 transitions. [2021-11-03 03:58:35,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 446 transitions. [2021-11-03 03:58:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 03:58:35,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:35,997 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:58:36,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 03:58:36,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:58:36,212 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:58:36,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:36,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1204805774, now seen corresponding path program 1 times [2021-11-03 03:58:36,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:58:36,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68497369] [2021-11-03 03:58:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:36,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:58:36,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:58:36,218 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:58:36,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:58:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:40,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 03:58:40,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:40,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:41,258 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:58:41,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68497369] [2021-11-03 03:58:41,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68497369] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:58:41,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:58:41,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:58:41,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966410174] [2021-11-03 03:58:41,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:58:41,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:58:41,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:58:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:58:41,261 INFO L87 Difference]: Start difference. First operand 360 states and 446 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:43,871 INFO L93 Difference]: Finished difference Result 723 states and 891 transitions. [2021-11-03 03:58:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:58:43,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-03 03:58:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:43,875 INFO L225 Difference]: With dead ends: 723 [2021-11-03 03:58:43,875 INFO L226 Difference]: Without dead ends: 459 [2021-11-03 03:58:43,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:58:43,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-11-03 03:58:43,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 360. [2021-11-03 03:58:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 349 states have (on average 1.2722063037249283) internal successors, (444), 359 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 444 transitions. [2021-11-03 03:58:43,891 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 444 transitions. Word has length 52 [2021-11-03 03:58:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:43,892 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 444 transitions. [2021-11-03 03:58:43,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:58:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 444 transitions. [2021-11-03 03:58:43,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 03:58:43,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:43,893 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:58:43,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:58:44,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:58:44,110 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-03 03:58:44,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:44,110 INFO L85 PathProgramCache]: Analyzing trace with hash 215168707, now seen corresponding path program 1 times [2021-11-03 03:58:44,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:58:44,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569098116] [2021-11-03 03:58:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:44,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:58:44,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:58:44,117 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:58:44,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d072c0ce-7bea-4462-be57-32d0149e39f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:58:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:48,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-03 03:58:48,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:58:49,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:59:01,816 WARN L207 SmtUtils]: Spent 11.12 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 03:59:01,824 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 03:59:01,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771