./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_compare_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_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/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_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/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_1b62c04d-033b-46aa-8540-b76b596178da/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 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:30:19,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:30:19,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:30:19,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:30:19,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:30:19,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:30:19,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:30:19,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:30:19,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:30:19,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:30:19,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:30:19,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:30:19,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:30:19,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:30:19,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:30:19,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:30:19,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:30:19,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:30:19,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:30:19,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:30:19,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:30:19,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:30:19,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:30:19,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:30:19,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:30:19,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:30:19,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:30:19,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:30:19,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:30:19,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:30:19,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:30:19,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:30:19,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:30:19,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:30:19,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:30:19,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:30:19,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:30:19,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:30:19,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:30:19,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:30:19,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:30:19,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:30:19,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:30:19,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:30:19,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:30:19,748 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:30:19,749 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:30:19,749 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:30:19,749 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:30:19,749 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:30:19,756 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:30:19,756 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:30:19,757 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:30:19,757 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:30:19,758 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:30:19,758 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:30:19,758 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:30:19,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:30:19,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:30:19,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:30:19,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:30:19,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:30:19,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:30:19,760 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:30:19,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:30:19,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:30:19,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:30:19,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:30:19,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:30:19,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:30:19,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:30:19,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:30:19,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:30:19,764 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:30:19,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:30:19,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:30:19,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:30:19,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:30:19,765 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_1b62c04d-033b-46aa-8540-b76b596178da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2021-11-03 04:30:20,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:30:20,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:30:20,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:30:20,123 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:30:20,124 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:30:20,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-11-03 04:30:20,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/f2c759cfc/d439ec3b43be494694c2654db3a6a5fc/FLAGd7213af4d [2021-11-03 04:30:21,200 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:30:21,201 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-11-03 04:30:21,271 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/f2c759cfc/d439ec3b43be494694c2654db3a6a5fc/FLAGd7213af4d [2021-11-03 04:30:21,573 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/f2c759cfc/d439ec3b43be494694c2654db3a6a5fc [2021-11-03 04:30:21,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:30:21,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:30:21,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:30:21,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:30:21,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:30:21,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:30:21" (1/1) ... [2021-11-03 04:30:21,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b361f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:21, skipping insertion in model container [2021-11-03 04:30:21,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:30:21" (1/1) ... [2021-11-03 04:30:21,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:30:21,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:30:22,050 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-11-03 04:30:22,058 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-11-03 04:30:22,087 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:30:22,104 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:30:23,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,076 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:23,561 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:30:23,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:30:23,563 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:30:23,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:30:23,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:30:23,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:30:23,568 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:30:23,569 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:30:23,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:30:23,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:30:23,855 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:30:23,892 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:30:23,898 INFO L168 Benchmark]: Toolchain (without parser) took 2318.55 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 79.4 MB in the beginning and 103.1 MB in the end (delta: -23.7 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:30:23,899 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 107.0 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:30:23,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2313.37 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 79.0 MB in the beginning and 103.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:30:23,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 107.0 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2313.37 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 79.0 MB in the beginning and 103.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 38.3 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_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/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_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/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_1b62c04d-033b-46aa-8540-b76b596178da/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 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:30:26,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:30:26,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:30:26,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:30:26,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:30:26,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:30:26,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:30:26,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:30:26,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:30:26,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:30:26,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:30:26,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:30:26,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:30:26,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:30:26,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:30:26,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:30:26,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:30:26,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:30:26,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:30:26,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:30:26,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:30:26,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:30:26,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:30:26,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:30:26,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:30:26,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:30:26,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:30:26,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:30:26,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:30:26,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:30:26,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:30:26,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:30:26,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:30:26,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:30:26,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:30:26,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:30:26,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:30:26,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:30:26,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:30:26,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:30:26,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:30:26,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:30:26,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:30:26,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:30:26,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:30:26,436 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:30:26,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:30:26,436 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:30:26,437 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:30:26,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:30:26,437 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:30:26,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:30:26,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:30:26,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:30:26,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:30:26,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:30:26,439 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:30:26,439 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:30:26,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:30:26,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:30:26,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:30:26,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:30:26,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:30:26,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:30:26,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:30:26,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:30:26,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:30:26,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:30:26,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:30:26,443 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:30:26,444 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:30:26,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:30:26,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:30:26,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:30:26,445 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_1b62c04d-033b-46aa-8540-b76b596178da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2021-11-03 04:30:26,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:30:26,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:30:26,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:30:26,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:30:26,895 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:30:26,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-11-03 04:30:26,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/9e366bdf2/329c1f95f74a4e649fd44bfebcf4bc5e/FLAGa96221e53 [2021-11-03 04:30:28,005 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:30:28,006 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-11-03 04:30:28,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/9e366bdf2/329c1f95f74a4e649fd44bfebcf4bc5e/FLAGa96221e53 [2021-11-03 04:30:28,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/data/9e366bdf2/329c1f95f74a4e649fd44bfebcf4bc5e [2021-11-03 04:30:28,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:30:28,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:30:28,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:30:28,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:30:28,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:30:28,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:30:28" (1/1) ... [2021-11-03 04:30:28,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e879ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:28, skipping insertion in model container [2021-11-03 04:30:28,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:30:28" (1/1) ... [2021-11-03 04:30:28,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:30:28,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:30:28,781 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-11-03 04:30:28,789 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-11-03 04:30:28,817 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:30:28,824 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:30:29,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,050 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,502 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:30:30,504 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:30:30,505 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:30:30,507 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:30:30,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:30:30,510 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:30:30,510 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:30:30,511 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:30:30,512 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:30:30,513 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:30:30,716 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:30:30,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:30,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:30:31,156 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:30:31,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:30:31,207 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-11-03 04:30:31,207 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-11-03 04:30:31,221 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:30:31,222 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:30:31,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,309 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,386 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:30:31,387 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:30:31,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:30:31,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:30:31,392 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:30:31,393 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:30:31,398 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:30:31,398 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:30:31,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:30:31,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:30:31,431 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:30:31,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:30:31,692 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:30:31,721 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-11-03 04:30:31,721 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_1b62c04d-033b-46aa-8540-b76b596178da/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-11-03 04:30:31,723 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:30:31,725 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:30:31,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:30:31,818 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:30:31,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:30:31,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:30:31,820 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:30:31,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:30:31,822 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:30:31,822 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:30:31,823 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:30:31,824 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:30:31,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:30:31,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:31,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:30:32,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:30:32,396 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:30:32,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32 WrapperNode [2021-11-03 04:30:32,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:30:32,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:30:32,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:30:32,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:30:32,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:30:32,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:30:32,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:30:32,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:30:32,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:30:32,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:30:32,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:30:32,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:30:32,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (1/1) ... [2021-11-03 04:30:32,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:30:32,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:30:32,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:30:32,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 04:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:30:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:30:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:30:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:30:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:30:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:30:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:30:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:30:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:30:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:30:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:30:49,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:30:49,091 INFO L299 CfgBuilder]: Removed 94 assume(true) statements. [2021-11-03 04:30:49,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:30:49 BoogieIcfgContainer [2021-11-03 04:30:49,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:30:49,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:30:49,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:30:49,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:30:49,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:30:28" (1/3) ... [2021-11-03 04:30:49,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102a5a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:30:49, skipping insertion in model container [2021-11-03 04:30:49,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:30:32" (2/3) ... [2021-11-03 04:30:49,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102a5a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:30:49, skipping insertion in model container [2021-11-03 04:30:49,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:30:49" (3/3) ... [2021-11-03 04:30:49,116 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2021-11-03 04:30:49,125 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:30:49,126 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:30:49,194 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:30:49,199 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:30:49,200 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:30:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 136 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:49,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:30:49,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:49,226 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] [2021-11-03 04:30:49,227 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:30:49,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:49,233 INFO L85 PathProgramCache]: Analyzing trace with hash 171211731, now seen corresponding path program 1 times [2021-11-03 04:30:49,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:49,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528927070] [2021-11-03 04:30:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:49,258 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:49,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:49,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:49,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:30:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:53,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:30:53,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:30:54,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:30:54,204 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:54,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528927070] [2021-11-03 04:30:54,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528927070] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:54,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:54,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:30:54,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974987305] [2021-11-03 04:30:54,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:30:54,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:54,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:30:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:30:54,240 INFO L87 Difference]: Start difference. First operand has 137 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 136 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:54,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:54,297 INFO L93 Difference]: Finished difference Result 268 states and 366 transitions. [2021-11-03 04:30:54,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:30:54,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-11-03 04:30:54,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:54,317 INFO L225 Difference]: With dead ends: 268 [2021-11-03 04:30:54,318 INFO L226 Difference]: Without dead ends: 132 [2021-11-03 04:30:54,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:30:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-03 04:30:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-11-03 04:30:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 126 states have (on average 1.3174603174603174) internal successors, (166), 131 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 166 transitions. [2021-11-03 04:30:54,392 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 166 transitions. Word has length 28 [2021-11-03 04:30:54,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:30:54,393 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 166 transitions. [2021-11-03 04:30:54,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:30:54,394 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 166 transitions. [2021-11-03 04:30:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:30:54,397 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:30:54,398 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] [2021-11-03 04:30:54,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:30:54,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:30:54,614 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:30:54,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:30:54,615 INFO L85 PathProgramCache]: Analyzing trace with hash -379969457, now seen corresponding path program 1 times [2021-11-03 04:30:54,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:30:54,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476321976] [2021-11-03 04:30:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:30:54,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:30:54,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:30:54,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:30:54,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:30:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:59,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:30:59,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:00,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:00,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:00,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476321976] [2021-11-03 04:31:00,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476321976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:00,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:00,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 04:31:00,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55341250] [2021-11-03 04:31:00,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:31:00,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:00,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:31:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:31:00,622 INFO L87 Difference]: Start difference. First operand 132 states and 166 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:01,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:01,186 INFO L93 Difference]: Finished difference Result 406 states and 526 transitions. [2021-11-03 04:31:01,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:31:01,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 28 [2021-11-03 04:31:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:01,192 INFO L225 Difference]: With dead ends: 406 [2021-11-03 04:31:01,192 INFO L226 Difference]: Without dead ends: 364 [2021-11-03 04:31:01,194 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:31:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-11-03 04:31:01,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 341. [2021-11-03 04:31:01,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 335 states have (on average 1.3343283582089551) internal successors, (447), 340 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:01,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 447 transitions. [2021-11-03 04:31:01,230 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 447 transitions. Word has length 28 [2021-11-03 04:31:01,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:01,230 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 447 transitions. [2021-11-03 04:31:01,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 447 transitions. [2021-11-03 04:31:01,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:31:01,235 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:01,235 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] [2021-11-03 04:31:01,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:01,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:01,437 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:31:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:01,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1898656179, now seen corresponding path program 1 times [2021-11-03 04:31:01,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:01,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941159441] [2021-11-03 04:31:01,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:01,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:01,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:01,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:01,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:31:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:06,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 04:31:06,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:06,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:06,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:06,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:06,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941159441] [2021-11-03 04:31:06,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941159441] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:07,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:07,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-03 04:31:07,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140895803] [2021-11-03 04:31:07,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:31:07,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:07,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:31:07,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:31:07,002 INFO L87 Difference]: Start difference. First operand 341 states and 447 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:10,267 INFO L93 Difference]: Finished difference Result 506 states and 657 transitions. [2021-11-03 04:31:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 04:31:10,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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 39 [2021-11-03 04:31:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:10,272 INFO L225 Difference]: With dead ends: 506 [2021-11-03 04:31:10,272 INFO L226 Difference]: Without dead ends: 358 [2021-11-03 04:31:10,274 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:31:10,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-03 04:31:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 341. [2021-11-03 04:31:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 335 states have (on average 1.3253731343283581) internal successors, (444), 340 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 04:31:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 444 transitions. [2021-11-03 04:31:10,301 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 444 transitions. Word has length 39 [2021-11-03 04:31:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:10,301 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 444 transitions. [2021-11-03 04:31:10,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 444 transitions. [2021-11-03 04:31:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 04:31:10,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:10,306 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] [2021-11-03 04:31:10,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:10,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:10,522 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:31:10,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:10,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1687790567, now seen corresponding path program 1 times [2021-11-03 04:31:10,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:10,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712854795] [2021-11-03 04:31:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:10,528 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:10,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:10,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:10,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:31:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:15,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 04:31:15,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:15,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:16,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:16,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712854795] [2021-11-03 04:31:16,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712854795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:16,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:16,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 11 [2021-11-03 04:31:16,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452661238] [2021-11-03 04:31:16,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 04:31:16,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:16,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 04:31:16,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:31:16,083 INFO L87 Difference]: Start difference. First operand 341 states and 444 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:20,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:20,871 INFO L93 Difference]: Finished difference Result 723 states and 940 transitions. [2021-11-03 04:31:20,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 04:31:20,873 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 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 42 [2021-11-03 04:31:20,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:20,877 INFO L225 Difference]: With dead ends: 723 [2021-11-03 04:31:20,878 INFO L226 Difference]: Without dead ends: 599 [2021-11-03 04:31:20,880 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2021-11-03 04:31:20,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-03 04:31:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 388. [2021-11-03 04:31:20,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 382 states have (on average 1.3219895287958114) internal successors, (505), 387 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:20,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 505 transitions. [2021-11-03 04:31:20,905 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 505 transitions. Word has length 42 [2021-11-03 04:31:20,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:20,905 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 505 transitions. [2021-11-03 04:31:20,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 505 transitions. [2021-11-03 04:31:20,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 04:31:20,909 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:20,910 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] [2021-11-03 04:31:20,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:31:21,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:21,126 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:31:21,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:21,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1468935849, now seen corresponding path program 1 times [2021-11-03 04:31:21,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:21,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786829282] [2021-11-03 04:31:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:21,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:21,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:21,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:21,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:31:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:25,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:31:25,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:26,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:26,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:31:26,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:26,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786829282] [2021-11-03 04:31:26,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786829282] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:26,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:26,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:31:26,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450745642] [2021-11-03 04:31:26,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:31:26,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:26,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:31:26,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:31:26,163 INFO L87 Difference]: Start difference. First operand 388 states and 505 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:31:26,255 INFO L93 Difference]: Finished difference Result 463 states and 595 transitions. [2021-11-03 04:31:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:31:26,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-03 04:31:26,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:31:26,260 INFO L225 Difference]: With dead ends: 463 [2021-11-03 04:31:26,260 INFO L226 Difference]: Without dead ends: 436 [2021-11-03 04:31:26,261 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:31:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-11-03 04:31:26,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 394. [2021-11-03 04:31:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 388 states have (on average 1.3170103092783505) internal successors, (511), 393 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 511 transitions. [2021-11-03 04:31:26,285 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 511 transitions. Word has length 42 [2021-11-03 04:31:26,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:26,285 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 511 transitions. [2021-11-03 04:31:26,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:31:26,286 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 511 transitions. [2021-11-03 04:31:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 04:31:26,288 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:26,288 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] [2021-11-03 04:31:26,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 04:31:26,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:26,502 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:31:26,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:26,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1178556306, now seen corresponding path program 1 times [2021-11-03 04:31:26,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:26,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742505463] [2021-11-03 04:31:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:26,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:26,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:26,508 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:26,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b62c04d-033b-46aa-8540-b76b596178da/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:32:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:32:12,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1788 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-03 04:32:12,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:32:12,893 INFO L354 Elim1Store]: treesize reduction 160, result has 28.9 percent of original size [2021-11-03 04:32:12,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 51 treesize of output 79 [2021-11-03 04:32:17,149 INFO L354 Elim1Store]: treesize reduction 152, result has 1.9 percent of original size [2021-11-03 04:32:17,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 198 treesize of output 78 [2021-11-03 04:32:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:32:17,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:32:31,103 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 559 treesize of output 541